Assignment-I. Date of Submission: (Computer Science)

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1 Assignment-I Date of Submission: (Computer Science) FIND THE OUTPUT OF FOLLOWING LINE OF CODE FROM QUESTION 1 TO 13 GENERAL /CALL BY VALUE AND CALL BY REFERENCE/SCOPE RESOLUTION Q 1 int f = 1, i = 2; while (++ i < 5) f *= i; cout << f; Q4 void Change (int x[4]. int i) x[i] = x[i] * I; void main ( ) int x[ ] = 11, 21, 31, 41; for (int i = 0; i < 4; i++) Change (x, i); cout << x[i] << \n ; Q(2) int f = 1, i = 2; do f *= i; while (++ i < 5); cout << f; Q5 Int global = 20; void fun (int &x, int y) x = x y; y = x * 10; cout << x <<, << y << \n ; void main() int global = 8; fun (:: global, global); cout << global <<, << :: global << \n ; fun (global, :: global); cout << global <<, << :: global << \n ; INCREMENT/DECREMENT/RANDOM Q3 Find output void fun (int &A, int &B) A = A + B; B = A B; A = A B; void main ( ) int a = 4, b = 18; fun (a, b); cout << a <<, << b; 6. int val = 10; cout << val ++ << val << ++ val; 9. struct Box int Len, Bre, Hei; ; void Dimension(Box B) cout << B.Len << X << B.Bre << X ; cout << B.Hei << endl; void main ( ) Box B1 = 10, 20, 8, B2, B3; ++B1.Hei; Dimension (B1); B3= B1; ++B3.Len; B3.Bre++; Dimension (B3); 7 int ch = 20; cout << ch << ++ ch << ch << \n ; (i) The output of the code fragment. (ii) What is the effect of replacing ++ ch with ch + 1? 10. N=20 MIN=?,MAX=? void main() int N, Guessme; randomize(); cin>>n; Guessme = random(n-10) + 10 ; cout<<guessme<<endl; (12)IF GUESS=65 void main() int Guess; randomize(); cin>>guess; for (int I=1;I<=4;I++) 8 void main() int var1=5,var2=10; for(int i=1;i<=2;i++) cout << var1++ << \t << --var2<< endl; cout << var2-- << \t << ++var1<< endl; 11. int a = 10; int main( ) void demo ( int &, int, int *); clrscr( ); int a = 20; demo ( ::a,a,&b); cout << ::a << \t << a << \t << b; void demo ( int &x, int y, int *z ) a += x; y *= a; *z = a+y; cout << x << \t << y << \t << *z << endl; 13. void main() randomize();

2 B2= B3; B2.Hei += 5; B2.Len - = 2 Dimension (B2); New=Guess+random(I); cout<<(char)new; (i) ABBC (ii) ACBA (iii)abcc (iv) CABD int Marks[]=99,92,94,96,93,95; int mymarks; mymarks=marks[1+random(2)]; cout<<mymarks<<endl; (i) 99 (ii) 94 (iii) 96 (iv) none of these. 1. Name the header files that shall be needed for the following code: char String[ ] = Peace ; cout << setw(2)<<string; 2. Rewrite the following program after removing the syntactical error(s) if any. Underline each correction. #include <iostream.h> First = 10, Second = 20; Jumpto(First;Second); Jumpto(Second); void Jumpto (int N1, int N2 = 20) N1=N1+N2; count<<n1>>n2; 3. Find the output of the following program; #include<ctype.h> char Text[ ] = Mind@work! ; for(int I=0; Text[I]!= \0 ;I++) if(!isalpha(text[i])) Text[I]= * ; else if(isupper(text[i])) Text[I]=Text[I]+1; else Text[I] = Text[I+1]; cout<<text; 4. Find the output of the following program:

3 int U=10,V=20; for(int I=1;I<=2;I++) cout<< [1] <<U++<< & <<V 5 <<endl; cout<< [2] <<++V<< & <<U + 2 <<endl; 5. Name the header files that shall be needed for the following code: 1 char word[]= Exam ; cout<<setw(20)<<word; 6. Rewrite the following program after removing the syntax error(s) if any. Underline each correction. 2 #include <iostream.h> One=10,Two=20; Callme(One;Two); Callme(Two); void Callme(int Arg1,int Arg2) Arg1=Arg1+Arg2; Count<<Arg1>>Arg2; 6. Find the output of the following program: #include<ctype.h> char Mystring[ ] = "what@output!"; for(int I=0; Mystring[I]!='\0';I++) if(!isalpha(mystring[i])) Mystring[I]='*'; else if(isupper(mystring[i])) Mystring[I]=Mystring[I]+1; else Mystring[I] =Mystring[I+1]; cout<<mystring; 7. Find the output of the following program:

4 int A=5,B=10; for(int I=1;I<=2;I++) cout<< Line1 <<A++<< & <<B-2 <<endl; cout<< Line2 <<++B<< & <<A +3 <<endl; 8. In the following program, find the correct possible output(s) from the options: #include<stdlib.h> randomize( ); char Area[ ][10]= NORTH, SOUTH, EAST, WEST ; int ToGo; for(int I=0; I<3;I++) ToGo=random(3) + 1; cout<<area[togo]<< : ; Outputs: i. SOUTH : EAST : SOUTH : ii. NORTH : SOUTH : EAST : iii. SOUTH : EAST : WEST : iv. SOUTH : EAST : EAST : 9. Differentiate between a Run Time Error and Syntax Error. Also give suitable examples of each in c Name the header file(s) that shall be needed for successful compilation of the following C++ code. char String[20]; gets(string); strcat(string, CBSE ); puts(string); 11. Rewrite the following program after removing the syntactical error(s) if any. Underline each correction. const int Max 10; void main() int Numbers[Max]; Numbers = 20,50,10,30,40; for(loc=max-1;loc>=10;loc--)

5 cout>>numbers[loc]; 12. Find the output of the following program. void Withdef(int HisNum=30) for(int I=20;I<=HisNum;I+=5) cout<<i<<, ; cout<<endl; void Control(int &MyNum) MyNum+=10; Withdef(MyNum); void main() int YourNum=20; Control(YourNum); Withdef(); cout<< Number= <<YourNum<<endl; 13. In the following C++ program what is the expected value of MyMarks from options (i) to (iv)given below. Justify answer. #include<stdlib.h> randomize( ); int Marks[]=99,92,94,96,93,95, MyMarks; MyMarks = Marks [1+random(2)]; cout<<mymarks<<endl; (i) 99 (ii) 94 (iii) 96 (iv) None of the above. 14. Differentiate between a Logical Error and Syntax Error. Also give suitable examples of each in C Name the header file(s) that shall be needed for successful compilation of the following C++ code. char Text[40]; strcpy(text, AISSCE ); puts(text); 16(a). Rewrite the following program after removing the syntactical error(s), if any. Underline each correction. const int Size 5; int Array[Size];

6 Array=50,40,30,20,10 ; for(ctr=0;ctr<size;ctr++) cout>>array[ctr]; 16(b). Find the output of the following program: void Indirect(int Temp=20) for(int I=10;I<=Temp;I+=5) cout<<i<<, ; cout<<endl; void Direct(int &Num) Num+=10; Indirect(Num); int Number=20; Direct(Number); Indirect( ); cout<< Number = <<Number<<endl; 17(a). Differentiate between a Call by Value and Call by Reference, giving suitable examples of each. 17(b). Name the header files to which the following belong: 1 (i) abs( ) (ii) strcmp( ) 18(a). Rewrite the following program after removing the syntactical error(s), if any. Underline each correction. const int Multiple 3; value = 15; for(int Counter = 1;Counter = <5;Counter ++, Value -= 2) if(value%multiple = = 0) cout<<value * Multiple; cout<<end1; else cout<<value + Multiple <<endl; 18(b). Find the output of the following program: #include<string.h> #include<ctype.h> void Convert(char Str[ ],int Len) for(int Count=0;Count<Len;Count++) if(isupper(str[count])) Str[Count]=tolower(Str[Count]); else if (islower(str[count])) Str[Count]=toupper(Str[Count]);

7 else if(isdigit(str[count])) Str[Count]=Str[Count]+1; else Str[Count]= * ; char Text[ ]= CBSE Exam 2014 ; int Size = strlen(text); Convert(Text,Size); cout<<text<<endl; for(int C=0,R=Size 1;C<=Size/2;C++,R--) char Temp=Text[C]; Text[C]=Text[R]; Text[R]=Temp; cout<<text<<endl; 19. Observe the following program SCORE.CPP carefully, if the value of Num entered by the user is 5, choose the correct possible output(s) from the options from (i) to (iv), and justify your option. //Program: SCORE.CPP #include<stdlib.h> randomize( ); int Num,Rndnum; cin>>num; Rndnum = random(num) + 5; for(int N = 1;N<=Rndnum;N++) cout<<n<< ; Output Options: (i) (ii) 1 2 (iii) (iv) Name the header files to which the following belong: 1 (i) puts( ) (ii)isalnum( ) 21. Rewrite the following program after removing the syntactical error(s), if any. Underline each correction. const int dividor 5; Number = 15; for(int Count=1;Count=<5;Count++,Number -= 3) if(number % dividor = = 0) cout<<number / Dividor; cout<<endl; else cout<<number + Dividor <<endl;

8 22. Find the output of the following program: #include<string.h> #include<ctype.h> void Change(char Msg[],int Len) for(int Count=0;Count<Len;Count++) if(islower(msg[count])) Msg[Count] = toupper(msg[count]); else if(isupper(msg[count])) Msg[Count] = tolower(msg[count]); else if (isdigit(msg[count])) Msg[Count]=Msg[Count]+1; else Msg[Count] = * ; char Message[ ]= 2005 Tests ahead ; int Size=strlen(Message); Change(Message,Size); cout<<message<<endl; for(int C=0,R=Size 1; C<=Size/2;C++,R--) char Temp=Message[C]; Message[C]=Message[R]; Message[R]=Temp; cout<<message<<endl; 23. Observe the following program GAME.CPP carefully, if the value of Num entered by the user is 14, choose the correct possible output(s) from the options from (i) to (iv), and justify your option. // Program:GAME.CPP # include<stdlib.h> randomize( ); int Num,Rndnum; cin>>num; Rndnum=random(Num)+7; for(int N=1;N<=Rndnum;N++) cout<<n<< ; Output Options: (i) (ii) (iii) (iv) Write the names of the header files to which the following belong: (i) gets( ) (ii) strcmp( ) (iii)abs( ) (iv)isalnum( ) 25. What will be the output of the following program

9 int var1=5,var2=10; for(int i=1,i<=2;i++) cout<<var1++<< \t << - - var2<<endl; cout<<var2- -<< \t <<+ + var1<<endl; 26. Write definition for a function SumSequence( ) in C++ with two arguments/ parameters double X and int n. The function should return a value of type double and it should perform sum of the following series. 1/x- 3!/x + 5!/x 7!/x + 9!/x upto n terms Note: The symbol! represents Factorial of a number ie 5!= 1 X 2 X 3 X 4 X What is the difference between global variables and local variables? Give an example to illustrate the same. 28. Name the header file, to which the following built-in function belongs: (i) strcmp( ) (ii)getc( ) 29. Rewrite the following program after removing all the syntax error(s) if any. int P[ ]=90,10,24,15;Q,Number=4; Q=9; for[int I=Number-1;I>=0,I--] switch(i) case 0; case 3: cout>>p[i]*q<<endl;break; <<P[I]+Q; 30. Write the output of the following program: int Execute(int M) if(m%3==0) return M*3; else return M+10; void Output(int B=2) for(int T=0;T<B;T++) cout<<execute(t)<< * ; cout<<endl; Output(4); Output( ); Output(3);

10 31. Write the output of the following program. int x=5,y=5; cout<<x- -; cout<<, ; cout<- - x; cout<<, ; cout<<y- -<<, <<- -y; 32. Write a program with function to sort an array of integers in an ascending order using bubble sort technique. 33. Write a program in C++ to create a matrix of order 3 x 3 and find the sum of the diagonal elements. 34. Write a program that reads a string and a character.it then converts each sequence of the given character to opposite case. 35. You have given an array of integers which are arranged in ascending order. Write a function for searching a particular element using binary search technique. 36. Write a program with function to sort an array of integers in an ascending order using bubble sort technique. 37. Write a program that will containing the list of customers and their corresponding telephone numbers. Use structure variable to store the name and telephone number of each customer. Get input from the user. 38. Write a program to read X and Y co-ordinates of two points and find the distance between them. Use structure variable to store X and Y co-ordinates of a point. 39. Write a program (Telephone directory simulation) that can sort a list of names and telephone number alphavatically. Names to be treated as a unit of structure: Person char name[20]; long tel; char address[40]; 40. Write a program to store information of 100 employees and send it to search( ) as argument to display information of an employee depending upon the employee no input by user. The employee structure as follows Employee empno, name, design, address, basic

KENDRIYA VIDYALYA CLRI COMPUTER SCIENCE XII WORKSHEET ON OUTPUT QUESTIONS

KENDRIYA VIDYALYA CLRI COMPUTER SCIENCE XII WORKSHEET ON OUTPUT QUESTIONS 1. What will be the output of following: void main ( ) int val = 10; cout