GATE | Sudo GATE 2020 Mock I (27 December 2019) | Question 26

A process executes the following code:

#include <stdio.h>
#include <unistd.h>

int main()
{
    if (fork() && (!fork())) {
        if (fork() || fork()) {
            fork();
        }
    }
    int i=1;
    printf("i++");
    return 0;
}

Output of the above program is

(A) i++i++i++i++i++i++i++
(B) 1 2 3 4 5
(C) 1 1 1 1 1
(D) None of these

Answer: (A)
Explanation: Printed output:

i++i++i++i++i++i++i++

#include <stdio.h>
#include <unistd.h>

int main()
{
    if (fork() && (!fork())) {
        if (fork() || fork()) {
            fork();
        }
    }
    int i=1;
    printf("i++");
    return 0;
}

Option (A) is correct.
Quiz of this Question