ISRO | ISRO CS 2018 | Question 6

Consider the following C code segment:

#include 
main()
{
    int i, j , x ;
    scanf("%d", &x);
    i = 1 ; j = 1;
    while ( i< 10 ) {
          j = j * i;
          i = i + 1;
          if (i == x) break ;
          }
 }

For the program fragment above, which of the following statements about the variables i and j must be true after execution of this program? [!(exclamation) sign denotes factorial in the answer]

(A) ( j = (x - 1 )! ) ∧ (i >= x)
(B) ( j = 9!) ∧ (i =10)
(C) (( j = 10!) ∧ (i = 10 )) V (( j = (x - 1)!) ∧ (i = x ))
(D) (( j = 9!) ∧ (i = 10)) V (( j = (x - 1)!) ∧ (i = x ))


Answer: (D)

Explanation:

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