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1. C / ANSI-C
2. Language Basics
3. For

Nested for loop demo

#include <stdio.h>

int main(void)
{
  int answer, i, chances, right;

  for(i = 1; i < 11; i++) {
    printf(" %d + %d = ?", i , i);
    scanf("%d", &answer);

    if(answer == i + i) 
        printf("Right!\n");
    else {
      printf("Wrong.\n");
      printf("Try again.\n");

      right = 0;
      /* nested for */
      for(chances = 0; chances < 3 && !right; chances++) {
        printf(" %d + %d = ? ", i, i);
        scanf("%d", &answer);

        if(answer == i + i) {
          printf("Right!\n");
          right = 1;
        }
      }

      /* if answer still wrong, tell user */
      if(!right)
        printf("The answer is %d.\n", i + i);
    }
  }

  return 0;
}
  

           
       

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