Determine Output void main() int i=-1 j=-1 k=0 l=2 m m...

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C Miscellaneous

Determine Output:

void main()
{
      int i=-1, j=-1, k=0, l=2, m;
      m = i++ && j++ && k++ || l++;
      printf("%d %d %d %d %d", i, j, k, l, m);
}

A) 0 0 1 2 0 B) 0 0 1 3 0 C) 0 0 1 3 1 D) 0 0 0 2 1

Answer & Solution

Correct Answer: Option C

Logical operations always give a result of 1 or 0 . And also the logical AND (&&) operator has higher priority over the logical OR (||) operator. So the expression 'i++ && j++ && k++' is executed first. The result of this expression is 0 (-1 && -1 && 0 = 0). Now the expression is 0 || 2 which evaluates to 1 (because OR operator always gives 1 except for '0 || 0' combination- for which it gives 0). So the value of m is 1. The values of other variables are also incremented by 1.

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Sourabh Jain 7 years ago

main()
{ int i = 0 , j = 1 , k =2 , l ;
l = i && j++ && ++k ;
printf ( “ %d %d %d %d ” , i , j , k , l ) ;
}
Ans: Output : 0 1 2 0
why out put is not : 0 2 3 0

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