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Expressions - Programming

Q1:

What will be the output of the program? 
#include<stdio.h>
int main()
{
    int x=55;
    printf('%d, %d, %d\n', x<=55, x=40, x>=10);
    return 0;
}

A 1, 40, 1

B 1, 55, 1

C 1, 55, 0

D 1, 1, 1

ANS:A - 1, 40, 1

Step 1: int x=55; here variable x is declared as an integer type and initialized to '55'.
Step 2: printf('%d, %d, %d\n', x<=55, x=40, x>=10);
In printf the execution of expressions is from Right to Left.
here x>=10 returns TRUE hence it prints '1'.
x=40 here x is assigned to 40 Hence it prints '40'.
x<=55 returns TRUE. hence it prints '1'.
Step 3: Hence the output is '1, 40, 1'.