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What will be the output of the program?


#include<stdio.h>
int main()
{
int i=-3, j=2, k=0, m;
m = ++i && ++j || ++k;
printf("%d, %d, %d, %d\n", i, j, k, m);
return 0;
}
Options:
A .  1, 2, 0, 1
B .  -3, 2, 0, 1
C .  -2, 3, 0, 1
D .  2, 3, 1, 1
Answer: Option C

Step 1: int i=-3, j=2, k=0, m; here variable i, j, k, m are declared as an integer type and 

variable i, j, k are initialized to -3, 2, 0 respectively.

Step 2: m = ++i && ++j || ++k;
becomes m = (-2 && 3) || ++k;
becomes m = TRUE || ++k;. 
(++k) is not executed because (-2 && 3) alone return TRUE.
Hence this statement becomes TRUE. So it returns '1'(one). Hence m=1.

Step 3: printf("%d, %d, %d, %d`setminus`n", i, j, k, m); In the previous step the value of i,j are increemented by '1'(one).

Hence the output is "-2, 3, 0, 1".




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