Computer Programming: 7th Week Functions, Recursive Functions, Introduction to Pointers
|
|
- Godwin Payne
- 6 years ago
- Views:
Transcription
1 Computer Programming: 7th Week Functions, Recursive Functions, Introduction to Pointers Hazırlayan Asst. Prof. Dr. Tansu Filik
2 Introduction to Programming Languages Previously on Bil-200 Functions: Function calls, function definition
3 Introduction to Programming Languages Recursion Some mathematical problems and graph theoretical questions are inherently recursive : n! = n * (n-1)!... (n-1)! =(n-1) * (n-2)! Fibonacci series: 0, 1, 1, 2, 3, 5, 8... fib( n ) = fib( n - 1 ) + fib( n 2 ) In this case, the function must call itself! (n-2)! = (n-2)*(n-3)!
4 long fibonacci( long n ) if (n == 0 n == 1) /* en alt */ return n; else return fibonacci( n - 1) + fibonacci( n 2 ); f( 3 ) return f( 2 ) + f( 1 ) return f( 1 ) + f( 0 ) return 1 return 1 return 0
5 long fibonacci( long n ) printf("%d\n",n); if (n == 0 n == 1) /* en alt */ return n; else return fibonacci( n - 1) + fibonacci( n 2 ); f( 3 ) return f( 2 ) + f( 1 ) return f( 1 ) + f( 0 ) return return 1 return 0
6 int factorial(int a) if(a<0) fprintf(stderr, Gecersiz sayi\n ); return; else if ((a==0) (a==1)) return 1; else return (a*factorial(a-1));
7 Exercise: tanh 1 x x x x x Evaluate the above expression until the added numbers become smaller than a determined threshold.
8 Examples C code to find the addition of n numbers by recursion: #include<stdio.h> int getsum(int n); int main() int n,sum; printf("enter the value of n: "); scanf("%d",&n); int getsum(int n) static int sum = 0; if(n>0) sum = sum + n; getsum(n-1); sum = getsum(n); printf("sum of n numbers: %d",sum); return sum; return 0;
9 Examples C code to check a number is prime number or not by recursion: #include<stdio.h> int isprime(int num,int i); int main() int num,prime; int isprime(int num,int i) printf("enter a positive number: "); scanf("%d",&num); prime = isprime(num,num/2); if(prime==1) printf("%d is a prime number",num); else printf("%d is not a prime number",num); if(i==1) return 1; else if(num%i==0) return 0; else isprime(num,i-1); return 0;
10 void a(void) int x=10; printf( %d\n,x); x++; printf( %d\n,x); void b(void) static int x=10; printf( %d\n,x); x++; printf( %d\n,x); The value of this variable is assigned to 10 for the first call of function. Then, each time the function is called, the previous value is remembered. void main(void) a(); a(); a(); a(); b(); b(); b(); b(); a: b:
11 Exercises: What's wrong with the following listing? #include <stdio.h> void print_msg( void ); main() print_msg( "This is a message to print" ); return 0; void print_msg( void ) puts( "This is a message to print" ); return 0; What's wrong with the following function definition? int twice(int y); return (2 * y);
12 The values of local variables are unknown to outside the function. Different functions may have local variables with same names. Their values have nothing to do with other functions variables. The variables (parameters) that are sent to the function can change their values inside the function. BUT!!! The variable which is inside the function call does not change. The function makes a copy of the variable, and uses it. It does not use the original variable.
13 !! Example!! Write a function which swaps the values of its two parameters: int a=6, b=4; printf("%d %d\n", a, b); degistir(a, b); printf("%d %d\n", a, b); The first printf should write "6 4", the next should "4 6".
14 void degistir ( int a, int b ) int gecici; Solution (?) gecici = a; a = b; b = gecici; a and b are local variables, specific to the function only. The function is unable to change the values.
15 Why doesn t it work? Because you may send parameters to functions in two ways: by value by reference By value: While calling function, a copy of the variable value is sent. The original variable is not sent. By reference: While calling function, the real address of the variable is sent to the function. Inside the function, the values at that address can be changed. So the variable value also changes! (Remember scanf())
16 Function calls Remember function: toplam(). When it is called, the loal variables work, and when the function finishes, the local variables are lost. So how can we send parameters by reference? By address-pointer syntax. main() memory area i 12 j 25? copied copied toplam() memory area a 12 b 25
17 Two-way communication with functions #include <stdio.h> void swap(int *a,int *b); void main() int i = 1, j = 2; &i and &j, are memory locations of i and j. We send addresses to the swap() function. swap(&i, &j); void swap(int *a, int *b) int t; a and b are address (pointer) variables. t = *a; *a = *b; *b = t; By writing *a and *b, we can rach to the values in the given address.
18 Sending addresses to functions main() memory area &i toplam() memory area a 12 i 100 &j 100 b j This is the memory location of variable j
19 We already use such functions Remember scanf(); fscanf(); fopen(); etc... Think of function scanf(). What is critical here? Why do we send addresses of variables: scanf( %d, &i); Because we want to change the value of variable i. Why do we use scanf( %s, str);? We have not seen yet, but str is already an address!
20 scanf(&num) illustration &num &num 2 byte Read from keyboard: (Assume 10 is entered) 0 A
21 If you send the variable with & (address) sign - just like doing in scanf() we can change its value inside the function by writing thing to its memory location. Since the memory location corresponds to the container of the original variable, its value automatically changes.. So, what is the syntax (format) of a function that accepts addresses? We use *variable notation.
22 void my_func(int *num) This part is just like other functions. The argument listing part is different. int *num; is a variable whose address is num. We call the above function as: my_func(&i);
23 Example: If we want to print out the value of the parameter which was sent: void my_func(int *num) printf("\n%d", num); printf("\n%d\n", *num); void main(void) int *num; int i = 1; my_func(&i);
24 void my_func(int *num) printf( %d\n,*num); *num = 2; printf( %d\n,*num); void main(void) int a=3; printf( %d\n,a); my_func(&a); printf( %d\n,a); This is the int variable; num is not int! If you call the function like this (with address)...then the function argument must be declared with * (a pointer) indicator.
25 void degis(int *n, int *m) int k; printf( Degismeden once, n=%d, m=%d,,*n,*m); k=*n; *n=*m; *m=*k; printf( Degistikten sonra, n=%d, m=%d,,*n,*m); void main(void) int n1=10,n2=20; printf( Fonksiyon oncesi n1=%d, n2=%d,n1,n2); degis(&n1,&n2); printf( Fonksiyon sonrasi n1=%d, n2=%d,n1,n2);
26 = &n1 = n *n=10 &n2 m *m=
27 If you want to use address/pointer convention, but keep the value unchanged, then use const int *const num; /* for instance... */
28 Class Exercise Write a function which reads three float variables from the user, and returns them. The name would be: read_return(). The main program must be like: #include <stdio.h> main() float a, b, c; read_return(&a, &b, &c); printf( The numbers: %f %f %f\n",a,b,c);
29 Alternative uses void getnum(int *num) int k; printf( bir sayi girin: ); scanf( %d,&k); num=k; void getnum(int *num) printf( bir sayi girin: ); scanf( %d,num); void main(void) int k; getnum(&k); scanf( %d,k);
Computer Programming 6th Week Functions (Function definition, function calls),
Computer Programming 6th Week Functions (Function definition, function calls), Hazırlayan Asst. Prof. Dr. Tansu Filik Computer Programming Previously on Bil-200 loops (do-while, for), Arrays, array operations,
More informationAssoc. Prof. Dr. Tansu FİLİK
Assoc. Prof. Dr. Tansu FİLİK Previously on Bil 200 Low-Level I/O getchar, putchar, getc, putc Control Structures if-else, switch-case, loops (while, dowhile, for loops) for loop (generic) A disturbingly
More informationSubject: Fundamental of Computer Programming 2068
Subject: Fundamental of Computer Programming 2068 1 Write an algorithm and flowchart to determine whether a given integer is odd or even and explain it. Algorithm Step 1: Start Step 2: Read a Step 3: Find
More informationAssoc. Prof. Dr. Tansu FİLİK
Assoc. Prof. Dr. Tansu FİLİK Computer Programming Previously on Bil 200 Midterm Exam - 1 Midterm Exam - 1 126 students Curve: 49,78 Computer Programming Arrays Arrays List of variables: [ ] Computer Programming
More informationChapter 4 Functions By C.K. Liang
1 Chapter 4 Functions By C.K. Liang What you should learn? 2 To construct programs modularly from small pieces called functions Math functions in C standard library Create new functions Pass information
More informationPESIT Bangalore South Campus Hosur road, 1km before Electronic City, Bengaluru -100 Department of Basic Science and Humanities
PESIT Bangalore South Campus Hosur road, 1km before Electronic City, Bengaluru -100 Department of Basic Science and Humanities Continuous Internal Evaluation Test 2 Date: 0-10- 2017 Marks: 0 Subject &
More informationComputer Programming 5th Week loops (do-while, for), Arrays, array operations, C libraries
Computer Programming 5th Week loops (do-while, for), Arrays, array operations, C libraries Hazırlayan Asst. Prof. Dr. Tansu Filik Computer Programming Previously on Bil 200 Low-Level I/O getchar, putchar,
More informationAssoc. Prof. Dr. Tansu FİLİK
Assoc. Prof. Dr. Tansu FİLİK Computer Programming Previously on Bil 200 Introduction to pointers String (character array) Static and automatic variables static and automatic variables, and scope Rem: Static
More informationComputer Programming 3 th Week Variables, constant, and expressions
3 th Week Variables, constant, and expressions Hazırlayan Asst. Prof. Dr. Tansu Filik Previously on Bil 200 Unitary operations (applied to single variable, +.-,++,--) Type casting Operation/Operator precedence
More information/* Area and circumference of a circle */ /*celsius to fahrenheit*/
/* Area and circumference of a circle */ #include #include #define pi 3.14 int radius; float area, circum; printf("\nenter radius of the circle : "); scanf("%d",&radius); area = pi
More informationA PROBLEM can be solved easily if it is decomposed into parts. Similarly a C program decomposes a program into its component functions.
FUNCTIONS IN C A PROBLEM can be solved easily if it is decomposed into parts. Similarly a C program decomposes a program into its component functions. Big problems require big programs too big to be written
More informationControl Structure: Loop
Control Structure: Loop Knowledge: Understand the various concepts of loop control structure Skill: Be able to develop a program involving loop control structure 1 Loop Structure Condition is tested first
More informationGovernment Polytechnic Muzaffarpur.
Government Polytechnic Muzaffarpur. Name of the Lab: COMPUTER PROGRAMMING LAB (MECH. ENGG. GROUP) Subject Code: 1625408 Experiment: 1 Aim: Programming exercise on executing a C program. If you are looking
More information'C' Programming Language
F.Y. Diploma : Sem. II [DE/EJ/ET/EN/EX] 'C' Programming Language Time: 3 Hrs.] Prelim Question Paper Solution [Marks : 70 Q.1 Attempt any FIVE of the following : [10] Q.1(a) Define pointer. Write syntax
More informationPointers. Pointer Variables. Chapter 11. Pointer Variables. Pointer Variables. Pointer Variables. Declaring Pointer Variables
Chapter 11 Pointers The first step in understanding pointers is visualizing what they represent at the machine level. In most modern computers, main memory is divided into bytes, with each byte capable
More informationLearning C Language. For BEGINNERS. Remember! Practice will make you perfect!!! :D. The 6 th week / May 24 th, Su-Jin Oh
Remember! Practice will make you perfect!!! :D Learning C Language For BEGINNERS The 6 th week / May 24 th, 26 Su-Jin Oh sujinohkor@gmail.com 1 Index Basics Operator Precedence Table and ASCII Code Table
More informationtoday cs3157-fall2002-sklar-lect05 1
today homework #1 due on monday sep 23, 6am some miscellaneous topics: logical operators random numbers character handling functions FILE I/O strings arrays pointers cs3157-fall2002-sklar-lect05 1 logical
More informationPrinciples of C and Memory Management
COMP281 Lecture 8 Principles of C and Memory Management Dr Lei Shi Last Lecture Pointer Basics Previous Lectures Arrays, Arithmetic, Functions Last Lecture Pointer Basics Previous Lectures Arrays, Arithmetic,
More informationPointers, command line arguments, Process control, and functions
Pointers, command line arguments, Process control, and functions Prof. (Dr.) K.R. Chowdhary, Director SETG Email: kr.chowdhary@jietjodhpur.ac.in webpage: http://www.krchowdhary.com Jodhpur Institute of
More informationFUNCTIONS OMPAL SINGH
FUNCTIONS 1 INTRODUCTION C enables its programmers to break up a program into segments commonly known as functions, each of which can be written more or less independently of the others. Every function
More informationProgramming & Data Structure Laboratory. Arrays, pointers and recursion Day 5, August 5, 2014
Programming & Data Structure Laboratory rrays, pointers and recursion Day 5, ugust 5, 2014 Pointers and Multidimensional rray Function and Recursion Counting function calls in Fibonacci #include
More informationCOP 3223 Introduction to Programming with C - Study Union - Fall 2017
COP 3223 Introduction to Programming with C - Study Union - Fall 2017 Chris Marsh and Matthew Villegas Contents 1 Code Tracing 2 2 Pass by Value Functions 4 3 Statically Allocated Arrays 5 3.1 One Dimensional.................................
More informationFundamentals of Programming & Procedural Programming
Universität Duisburg-Essen PRACTICAL TRAINING TO THE LECTURE Fundamentals of Programming & Procedural Programming Session Four: Functions: Built-in, Parameters and Arguments, Fruitful and Void Functions
More informationLanguage comparison. C has pointers. Java has references. C++ has pointers and references
Pointers CSE 2451 Language comparison C has pointers Java has references C++ has pointers and references Pointers Values of variables are stored in memory, at a particular location A location is identified
More informationQ 1. Attempt any TEN of the following:
Subject Code: 17212 Model Answer Page No: 1 / 26 Important Instructions to examiners: 1) The answers should be examined by key words and not as word-to-word as given in the model answer scheme. 2) The
More informationProgramming & Data Structure Laboratory. Day 2, July 24, 2014
Programming & Data Structure Laboratory Day 2, July 24, 2014 Loops Pre and post test loops for while do-while switch-case Pre-test loop and post-test loop Condition checking True Loop Body False Loop Body
More informationUnit III Functions. C functions can be classified into two categories, namely, library functions and user defined functions.
Unit III Functions Functions: Function Definition, Function prototype, types of User Defined Functions, Function calling mechanisms, Built-in string handling and character handling functions, recursion,
More informationBasic and Practice in Programming Lab7
Basic and Practice in Programming Lab7 Variable and Its Address (1/2) What is the variable? Abstracted representation of allocated memory Having address & value Memory address 10 0x00000010 a int a = 10;
More informationComputer Programming: 8th Week Pointers
Computer Programming: 8th Week Pointers Hazırlayan Asst. Prof. Dr. Tansu Filik Computer Programming Previously on Bil-200 Recursive functions, two way communications with functions (reference) Meanings
More informationb. array s first element address c. base address of an array d. all elements of an array e. both b and c 9. An array elements are always stored in a.
UNIT IV 1. Appropriately comment on the following declaration int a[20]; a. Array declaration b. array initialization c. pointer array declaration d. integer array of size 20 2. Appropriately comment on
More informationQuestion 1. Part (a) [2 marks] error: assignment of read-only variable x ( x = 20 tries to modify a constant) Part (b) [1 mark]
Note to Students: This file contains sample solutions to the term test together with the marking scheme and comments for each question. Please read the solutions and the marking schemes and comments carefully.
More informationAssoc. Prof. Dr. Tansu FİLİK
Assoc. Prof. Dr. Tansu FİLİK Previously on Bil 200 Operators Logical and arithmetic operators Control Structures if-else mechanism Low-level I/O They are fast! Might be useful for console applications.
More information"'"' .;, b) F or ( c = l ; c <= 10,"' c++ ) X { JJ. ~. Computer Programming I COME Midterm Examination. Fall November 2016
Group B ~. Computer Programming I COME 103 - Midterm Examination B Fall 2016 21 November 2016 1. Identify and correct the errors in each of the following statements. (Note: There may be more than one error.)
More informationArrays and Pointers. CSE 2031 Fall November 11, 2013
Arrays and Pointers CSE 2031 Fall 2013 November 11, 2013 1 Arrays l Grouping of data of the same type. l Loops commonly used for manipulation. l Programmers set array sizes explicitly. 2 Arrays: Example
More informationCOP 3223 Introduction to Programming with C - Study Union - Spring 2018
COP 3223 Introduction to Programming with C - Study Union - Spring 2018 Chris Marsh and Matthew Villegas Contents 1 Code Tracing 2 2 Pass by Value Functions 4 3 Statically Allocated Arrays 5 3.1 One Dimensional.................................
More informationCOP 3223 Introduction to Programming with C - Study Union - Fall 2017
COP 3223 Introduction to Programming with C - Study Union - Fall 2017 Chris Marsh and Matthew Villegas Contents 1 Code Tracing 2 2 Pass by Value Functions 4 3 Statically Allocated Arrays 5 3.1 One Dimensional.................................
More informationUNIT III (PART-II) & UNIT IV(PART-I)
UNIT III (PART-II) & UNIT IV(PART-I) Function: it is defined as self contained block of code to perform a task. Functions can be categorized to system-defined functions and user-defined functions. System
More informationC Programming Lecture V
C Programming Lecture V Instructor Özgür ZEYDAN http://cevre.beun.edu.tr/ Modular Programming A function in C is a small sub-program that performs a particular task, and supports the concept of modular
More informationChapter 1 & 2 Introduction to C Language
1 Chapter 1 & 2 Introduction to C Language Copyright 2007 by Deitel & Associates, Inc. and Pearson Education Inc. All Rights Reserved. Chapter 1 & 2 - Introduction to C Language 2 Outline 1.1 The History
More informationLecture 5: Multidimensional Arrays. Wednesday, 11 February 2009
Lecture 5: Multidimensional Arrays CS209 : Algorithms and Scientific Computing Wednesday, 11 February 2009 CS209 Lecture 5: Multidimensional Arrays 1/20 In today lecture... 1 Let s recall... 2 Multidimensional
More informationCS113: Lecture 5. Topics: Pointers. Pointers and Activation Records
CS113: Lecture 5 Topics: Pointers Pointers and Activation Records 1 From Last Time: A Useless Function #include void get_age( int age ); int age; get_age( age ); printf( "Your age is: %d\n",
More informationQuiz1 Fall 2007 October 2 nd, UNIVERSITY OF WINDSOR Fall 2007 QUIZ # 1 Solution. Examiner:Ritu Chaturvedi Dated :October 2nd, 2007.
UNIVERSITY OF WINDSOR 60-106-01 Fall 2007 QUIZ # 1 Solution Examiner:Ritu Chaturvedi Dated :October 2nd, 2007. Student Name: Student Number: INSTRUCTIONS (Please Read Carefully) No calculators allowed.
More informationArrays and Pointers. Arrays. Arrays: Example. Arrays: Definition and Access. Arrays Stored in Memory. Initialization. EECS 2031 Fall 2014.
Arrays Arrays and Pointers l Grouping of data of the same type. l Loops commonly used for manipulation. l Programmers set array sizes explicitly. EECS 2031 Fall 2014 November 11, 2013 1 2 Arrays: Example
More informationComputer Programming for Engineering Applica4ons. Intro to Programming 10/2/13 ECE 175. Limita4ons of Reference by Value. The Concept of Pointers
Computer Programming for Engineering Applica4ons ECE 175 Intro to Programming Limita4ons of Reference by Value Write a C func4on that does the following Argument: the radius of a circle r Output: circumference
More informationUNIVERSITY OF WINDSOR Winter 2007 QUIZ # 1 Solution. Examiner:Ritu Chaturvedi Dated : Feb 7 th, Student Name: Student Number:
UNIVERSITY OF WINDSOR 60-106-01 Winter 2007 QUIZ # 1 Solution Examiner:Ritu Chaturvedi Dated : Feb 7 th, 2007. Student Name: Student Number: INSTRUCTIONS (Please Read Carefully) No calculators allowed.
More informationPractice Sheet #07 with Solutions
Department of Computer Science & Engineering Indian Institute of Technology Kharagpur Practice Sheet #07 with Solutions Topic: Pointer in C Date: 23-02-2017 1 Assume the following C variable declaration
More informationModule 4: Decision-making and forming loops
1 Module 4: Decision-making and forming loops 1. Introduction 2. Decision making 2.1. Simple if statement 2.2. The if else Statement 2.3. Nested if Statement 3. The switch case 4. Forming loops 4.1. The
More informationFunc%ons. CS449 Fall 2017
Func%ons CS449 Fall 2017 1 Func%ons in C A group of statements performing a task Statements inside func%on is executed by calling it using the () operator Uses: Readability (through code modulariza%on)
More informationSyntax of for loop is as follows: for (inite; terme; updatee) { block of statements executed if terme is true;
Birla Institute of Technology & Science, Pilani Computer Programming (CSF111) Lab-5 ---------------------------------------------------------------------------------------------------------------------------------------------
More informationMore Arrays. Last updated 2/6/19
More Last updated 2/6/19 2 Dimensional Consider a table 1 2 3 4 5 6 5 4 3 2 12 11 13 14 15 19 17 16 3 1 4 rows x 5 columns 2 tj 2 Dimensional Consider a table 1 2 3 4 5 6 5 4 3 2 12 11 13 14 15 19 17 16
More informationDepartment of Computer Science & Engineering Indian Institute of Technology Kharagpur. Practice Sheet #07. Topic: Pointer in C Date:
Department of Computer Science & Engineering Indian Institute of Technology Kharagpur Practice Sheet #07 Topic: Pointer in C Date: 23-02-2017 1. Assume the following C variable declaration int *A [10],
More informationComputer Programming. Decision Making (2) Loops
Computer Programming Decision Making (2) Loops Topics The Conditional Execution of C Statements (review) Making a Decision (review) If Statement (review) Switch-case Repeating Statements while loop Examples
More informationFunctions in C. Lecture Topics. Lecture materials. Homework. Machine problem. Announcements. ECE 190 Lecture 16 March 9, 2011
Functions in C Lecture Topics Introduction to using functions in C Syntax Examples Memory allocation for variables Lecture materials Textbook 14.1-14.2, 12.5 Homework Machine problem MP3.2 due March 18,
More informationM1-R4: Programing and Problem Solving using C (JAN 2019)
M1-R4: Programing and Problem Solving using C (JAN 2019) Max Marks: 100 M1-R4-07-18 DURATION: 03 Hrs 1. Each question below gives a multiple choice of answers. Choose the most appropriate one and enter
More informationUNIVERSITY OF WINDSOR Fall 2007 QUIZ # 2 Solution. Examiner : Ritu Chaturvedi Dated :November 27th, Student Name: Student Number:
UNIVERSITY OF WINDSOR 60-106-01 Fall 2007 QUIZ # 2 Solution Examiner : Ritu Chaturvedi Dated :November 27th, 2007. Student Name: Student Number: INSTRUCTIONS (Please Read Carefully) No calculators allowed.
More informationFunctions. Arash Rafiey. September 26, 2017
September 26, 2017 are the basic building blocks of a C program. are the basic building blocks of a C program. A function can be defined as a set of instructions to perform a specific task. are the basic
More informationFile IO and command line input CSE 2451
File IO and command line input CSE 2451 File functions Open/Close files fopen() open a stream for a file fclose() closes a stream One character at a time: fgetc() similar to getchar() fputc() similar to
More informationMIDTERM TEST EESC 2031 Software Tools June 13, Last Name: First Name: Student ID: EECS user name: TIME LIMIT: 110 minutes
MIDTERM TEST EESC 2031 Software Tools June 13, 2017 Last Name: First Name: Student ID: EECS user name: TIME LIMIT: 110 minutes This is a closed-book test. No books and notes are allowed. Extra space for
More informationSAMPLE MIDTERM SOLUTION
CMPT 102 SAMPLE MIDTERM SOLUTION PART 1 (40 points): SHORT ANSWER QUESTIONS 1. (8 points) Which of the following identifiers are invalid? Why? int my_book while loop FOR butter iff sentinel Calc-mean MeanOf45
More informationWhy Pointers. Pointers. Pointer Declaration. Two Pointer Operators. What Are Pointers? Memory address POINTERVariable Contents ...
Why Pointers Pointers They provide the means by which functions can modify arguments in the calling function. They support dynamic memory allocation. They provide support for dynamic data structures, such
More informationPROGRAMMING IN C LAB MANUAL FOR DIPLOMA IN ECE/EEE
PROGRAMMING IN C LAB MANUAL FOR DIPLOMA IN ECE/EEE 1. Write a C program to perform addition, subtraction, multiplication and division of two numbers. # include # include int a, b,sum,
More informationQuestions Bank. 14) State any four advantages of using flow-chart
Questions Bank Sub:PIC(22228) Course Code:-EJ-2I ----------------------------------------------------------------------------------------------- Chapter:-1 (Overview of C Programming)(10 Marks) 1) State
More informationLecture 9 - C Functions
ECET 264 C Programming Language with Applications Lecture 9 C Functions Paul I. Lin Professor of Electrical & Computer Engineering Technology http://www.etcs.ipfw.edu/~lin Lecture 9- Prof. Paul I. Lin
More informationC programming basics T3-1 -
C programming basics T3-1 - Outline 1. Introduction 2. Basic concepts 3. Functions 4. Data types 5. Control structures 6. Arrays and pointers 7. File management T3-2 - 3.1: Introduction T3-3 - Review of
More informationPointers (part 1) What are pointers? EECS We have seen pointers before. scanf( %f, &inches );! 25 September 2017
Pointers (part 1) EECS 2031 25 September 2017 1 What are pointers? We have seen pointers before. scanf( %f, &inches );! 2 1 Example char c; c = getchar(); printf( %c, c); char c; char *p; c = getchar();
More informationALGORITHM 2-1 Solution for Exercise 4
Chapter 2 Recursion Exercises 1. a. 3 * 4 = 12 b. (2 * (2 * fun1(0) + 7) + 7) = (2 * (2 * (3 * 0) + 7) + 7) = 21 c. (2 * (2 * fun1(2) + 7) + 7) = (2 * (2 * (3 * 2) + 7) + 7) = 45 2. a. 3 b. (fun2(2, 6)
More informationF.Y. Diploma : Sem. II [CO/CD/CM/CW/IF] Programming in C
F.Y. Diploma : Sem. II [CO/CD/CM/CW/IF] Programming in C Time : 3 Hrs.] Prelim Question Paper Solution [Marks : 70 Q.1 Attempt any FIVE of the following : [10] Q.1 (a) List any four relational operators.
More informationChapter 8: Function. In this chapter, you will learn about
Principles of Programming Chapter 8: Function In this chapter, you will learn about Introduction to function User-defined function Formal and Actual Parameters Parameter passing by value Parameter passing
More informationCS1100 Introduction to Programming
Decisions with Variables CS1100 Introduction to Programming Selection Statements Madhu Mutyam Department of Computer Science and Engineering Indian Institute of Technology Madras Course Material SD, SB,
More information& Technology. G) Functions. void. Argument2, Example: (Argument1, Syllabus for 1. 1 What. has a unique. 2) Function name. passed to.
Computer Programming and Utilization (CPU) 110003 G) Functions 1 What is user defined function? Explain with example. Define the syntax of function in C. A function is a block of code that performs a specific
More informationCS11001/CS11002 Programming and Data Structures (PDS) (Theory: 3-1-0) Introduction to arrays
CS11001/CS11002 Programming and Data Structures (PDS) (Theory: 3-1-0) Introduction to arrays 1 What are Arrays? Arrays are our first example of structured data. Think of a book with pages numbered 1,2,...,400.
More informationProcedural programming with C
Procedural programming with C Dr. C. Constantinides Department of Computer Science and Software Engineering Concordia University Montreal, Canada August 11, 2016 1 / 77 Functions Similarly to its mathematical
More informationPointers. Part VI. 1) Introduction. 2) Declaring Pointer Variables. 3) Using Pointers. 4) Pointer Arithmetic. 5) Pointers and Arrays
EE105: Software Engineering II Part 6 Pointers page 1 of 19 Part VI Pointers 1) Introduction 2) Declaring Pointer Variables 3) Using Pointers 4) Pointer Arithmetic 5) Pointers and Arrays 6) Pointers and
More informationMaterials covered in this lecture are: A. Completing Ch. 2 Objectives: Example of 6 steps (RCMACT) for solving a problem.
60-140-1 Lecture for Thursday, Sept. 18, 2014. *** Dear 60-140-1 class, I am posting this lecture I would have given tomorrow, Thursday, Sept. 18, 2014 so you can read and continue with learning the course
More informationEM108 Software Development for Engineers
EE108 Section 6 Pointers page 1 of 20 EM108 Software Development for Engineers Section 6 - Pointers 1) Introduction 2) Declaring Pointer Variables 3) Using Pointers 4) Pointer Arithmetic 5) Pointers and
More informationC Programming Language
C Programming Language Arrays & Pointers I Dr. Manar Mohaisen Office: F208 Email: manar.subhi@kut.ac.kr Department of EECE Review of Precedent Class Explain How to Create Simple Functions Department of
More informationThis code has a bug that allows a hacker to take control of its execution and run evilfunc().
Malicious Code Insertion Example This code has a bug that allows a hacker to take control of its execution and run evilfunc(). #include // obviously it is compiler dependent // but on my system
More informationArray Initialization
Array Initialization Array declarations can specify initializations for the elements of the array: int primes[10] = { 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 ; initializes primes[0] to 2, primes[1] to 3, primes[2]
More informationSlide Set 1. for ENCM 339 Fall Steve Norman, PhD, PEng. Electrical & Computer Engineering Schulich School of Engineering University of Calgary
Slide Set 1 for ENCM 339 Fall 2016 Steve Norman, PhD, PEng Electrical & Computer Engineering Schulich School of Engineering University of Calgary September 2016 ENCM 339 Fall 2016 Slide Set 1 slide 2/43
More informationC: How to Program. Week /Mar/05
1 C: How to Program Week 2 2007/Mar/05 Chapter 2 - Introduction to C Programming 2 Outline 2.1 Introduction 2.2 A Simple C Program: Printing a Line of Text 2.3 Another Simple C Program: Adding Two Integers
More informationCS240: Programming in C
CS240: Programming in C Lecture 5: Functions. Scope of variables. Program structure. Cristina Nita-Rotaru Lecture 5/ Fall 2013 1 Functions: Explicit declaration Declaration, definition, use, order matters.
More informationFundamentals of C Programming
Introduction, Constants, variables, keywords, Comments, I/O Functions, Data types, Compilation & Execution Tejalal Choudhary tejalal.choudhary@gmail.com, tejalal.choudhary@sdbct.ac.in Department of Computer
More informationEK131 E5 Introduction to Engineering
EK131 E5 Introduction to Engineering Lecture 5: Conditional, Functions, Recursions Prof. Michel A. Kinsy Conditional execution Conditional constructs provide the ability to control whether a statement
More informationLecture 6. Statements
Lecture 6 Statements 1 Statements This chapter introduces the various forms of C++ statements for composing programs You will learn about Expressions Composed instructions Decision instructions Loop instructions
More informationOutline Arrays Examples of array usage Passing arrays to functions 2D arrays Strings Searching arrays Next Time. C Arrays.
CS 2060 Week 5 1 Arrays Arrays Initializing arrays 2 Examples of array usage 3 Passing arrays to functions 4 2D arrays 2D arrays 5 Strings Using character arrays to store and manipulate strings 6 Searching
More informationEC 413 Computer Organization
EC 413 Computer Organization C/C++ Language Review Prof. Michel A. Kinsy Programming Languages There are many programming languages available: Pascal, C, C++, Java, Ada, Perl and Python All of these languages
More informationDynamic memory allocation
Dynamic memory allocation outline Memory allocation functions Array allocation Matrix allocation Examples Memory allocation functions (#include ) malloc() Allocates a specified number of bytes
More informationMAHARASHTRA STATE BOARD OF TECHNICAL EDUCATION (Autonomous) (ISO/IEC Certified)
Subject Code: 17212 Model Answer Page No: 1/28 Important Instructions to examiners: 1) The answers should be examined by key words and not as word-to-word as given in themodel answer scheme. 2) The model
More information2. Numbers In, Numbers Out
COMP1917: Computing 1 2. Numbers In, Numbers Out Reading: Moffat, Chapter 2. COMP1917 15s2 2. Numbers In, Numbers Out 1 The Art of Programming Think about the problem Write down a proposed solution Break
More informationArrays in C. Prof. Indranil Sen Gupta Dept. of Computer Science & Engg. Indian Institute of Technology Kharagpur. Basic Concept
Arrays in C Prof. Indranil Sen Gupta Dept. of Computer Science & Engg. Indian Institute of Technology Kharagpur 1 Basic Concept Many applications require multiple data items that have common characteristics.
More informationBCSE1002: Computer Programming and Problem Solving LAB MANUAL
LABMANUAL BCSE1002: Computer Programming and Problem Solving LAB MANUAL L T P Course Type Semester Offered Academic Year 2018-2019 Slot Class Room Faculty Details: Name Website link Designation School
More informationAN OVERVIEW OF C, PART 3. CSE 130: Introduction to Programming in C Stony Brook University
AN OVERVIEW OF C, PART 3 CSE 130: Introduction to Programming in C Stony Brook University FANCIER OUTPUT FORMATTING Recall that you can insert a text field width value into a printf() format specifier:
More informationSRI VIDYA COLLEGE OF ENGINEERING & TECHNOLOGY, VIRUDHUNAGAR Department of CSE & IT Internal Test I
SRI VIDYA COLLEGE OF ENGINEERING & TECHNOLOGY, VIRUDHUNAGAR Department of CSE & IT Internal Test I Year & Sem: I B.E (CSE) & II Date of Exam: 21/02/2015 Subject Code & Name: CS6202 & Programming & Data
More informationIntroduction to C programming. By Avani M. Sakhapara Asst Professor, IT Dept, KJSCE
Introduction to C programming By Avani M. Sakhapara Asst Professor, IT Dept, KJSCE Classification of Software Computer Software System Software Application Software Growth of Programming Languages History
More informationUnit 3 Functions. 1 What is user defined function? Explain with example. Define the syntax of function in C.
1 What is user defined function? Explain with example. Define the syntax of function in C. A function is a block of code that performs a specific task. The functions which are created by programmer are
More informationBLM2031 Structured Programming. Zeyneb KURT
BLM2031 Structured Programming Zeyneb KURT 1 Contact Contact info office : D-219 e-mail zeynebkurt@gmail.com, zeyneb@ce.yildiz.edu.tr When to contact e-mail first, take an appointment What to expect help
More informationPrinciples of Programming. Chapter 6: Arrays
Chapter 6: Arrays In this chapter, you will learn about Introduction to Array Array declaration Array initialization Assigning values to array elements Reading values from array elements Simple Searching
More informationCS16 Exam #1 7/17/ Minutes 100 Points total
CS16 Exam #1 7/17/2012 75 Minutes 100 Points total Name: 1. (10 pts) Write the definition of a C function that takes two integers `a` and `b` as input parameters. The function returns an integer holding
More informationCS11001/CS11002 Programming and Data Structures (PDS) (Theory: 3-0-0)
CS11001/CS11002 Programming and Data Structures (PDS) (Theory: 3-0-0) Class Teacher: Pralay Mitra Department of Computer Science and Engineering Indian Institute of Technology Kharagpur An Example: Random
More informationRunning a C program Compilation Python and C Variables and types Data and addresses Functions Performance. John Edgar 2
CMPT 125 Running a C program Compilation Python and C Variables and types Data and addresses Functions Performance John Edgar 2 Edit or write your program Using a text editor like gedit Save program with
More information