Download Aptitude Crack
img not found img not found

Library Functions

Q1:
What will be the output of the program? 
#include<stdio.h>

int main()
{
    int i;
    i = printf('How r u\n');
    i = printf('%d\n', i);
    printf('%d\n', i);
    return 0;
}

A How r u
7
2

B How r u
8
2

C How r u
8
2

D
Error: cannot assign printf to variable

ANS:A - How r u
7
2

Answer: Option
Explanation:
In the program, printf() returns the number of charecters printed on the console i = printf('How r u\n'); This line prints 'How r u' with a new line character and returns the length of string printed then assign it to variable i.
So i = 8 (length of '\n' is 1). i = printf('%d\n', i); In the previous step the value of i is 8. So it prints '8' with a new line character and returns the length of string printed then assign it to variable i. So i = 2 (length of '\n' is 1). printf('%d\n', i); In the previous step the value of i is 2. So it prints '2'.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.