Question

As it is time to study for finals, I have to cover some detailed information regarding loops.I am currently stuck on this question

int main(void) {
  int x = 0;
  int y = 0;
  while (y < 10) {
     x = 0;
     while (x != y) {// 
       x = x + 3; // how many times will we do this statement?
     }
     printf(“x is %d\n”, x);
     y = y + 1;
  }
}

Basically, I am looking to see what the output is and how many times that statement we mentioned is run. In other words what does printf output look like.

I hope you can help me with this.

Thank you so much.

Answer 1

This line causes a problem

 x = 0;
 while (x != y) {// 
   x = x + 3; // how many times will we do this statement?
 }

when y=1 since x will continue to increase until it reaches the maximum integer value (it cant equal y unless some overflow wrapping occurs – this will result in an infinite loop).