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⇱ Quiz about C Input and Output


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Question 1

What is the output of the below code 

int i = 0;

while(i<n){

if(i%2)break;

i++;}

cout<<i;

  • 1

  • 0

  • n

  • n-1

Question 2

Consider the following C program.

Which one of the following options is correct?

  • The program will not compile successfully

  • The program will compile successfully and output 10 when executed

  • The program will compile successfully and output 8 when executed

  • The program will compile successfully and output 13 when executed

Question 3

Consider the following ANSI C function:

int SimpleFunction(int Y[], int n, int x)
{
int total = Y[0], loopIndex;
for (loopIndex=1; loopIndex<=n-1; loopIndex++)
total=x*total +Y[loopIndex];
return total;
}

Let Z be an array of 10 elements with Z[i]=1, for all i such that 0 <= i <= 9. The value returned by SimpleFunction(Z,10,2) is __________ .

  • 1023

  • 1024

  • 2047

  • 511

Question 4

Consider the following ANSI C program.

#include < stdio.h >
int main( )
{
int arr[4][5];
int i, j;
for (i=0; i<4; i++)
{
for (j=0; j<5; j++)
{
arr[i][j] = 10 * i + j;
}
}
printf("%d", *(arr[1]+9));
return 0;
}

What is the output of the above program?

  • 14

  • 20

  • 24

  • 30

Question 5

Consider the following ANSI C function:

int SomeFunction (int x, int y)
{
if ((x==1) || (y==1)) return 1;
if (x==y) return x;
if (x > y) return SomeFunction(x-y, y);
if (y > x) return SomeFunction (x, y-x);

}

The value returned by SomeFunction (15, 255) is __________ .

  • 15

  • 1275

  • 30

  • 255

Question 6

Consider the following ANSI C program

#include 
int foo(int x, int y, int q)
{
if ((x<=0) && (y<=0))
return q;
if (x<=0)
return foo(x, y-q, q);
if (y<=0)
return foo(x-q, y, q);
return foo(x, y-q, q) + foo(x-q, y, q);
}
int main( )
{
int r = foo(15, 15, 10);
printf(ā€œ%dā€, r);
return 0;
}

The output of the program upon execution is _________ .

  • 60

  • 10

  • 15

  • 50

Question 7

Consider the following C program.

The output of this program is:

  • 0, c

  • 0, a+2

  • '0', 'a+2'

  • '0', 'c'

Question 8

Predict the output of following program?
  • 9
  • 1
  • 10
  • 100

Question 9

fggbb

  • a


  • s4

  • c

  • g

Question 10

Predict output of the following program 

  • ew_c_question
    geeksforgeeks

  • new_c_ques
    geeksforgeeks


  • geeksforgeeks

  • Depends on terminal configuration

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