Algorithms Quiz | SP2 Contest 1 | Question 4

What will be the output of the below C program?

#include <stdio.h>

int main()
{
    int x = 2;

    do{
        ++x;

        printf("%d", x);
    } while(--x <= 2);

    return 0;
}

(A) Runtime Error
(B) 2
(C) 3
(D) Infinite Loop

Answer: (D)
Explanation: As the value of x is incremented(++x) and then decremented(–x), hence no change in the value of x will occur and it will be as 2.
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