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  1. #include <stdio.h>
  2. int main(void)
  3. {
  4.     int  i, n;
  5.     for (i=1; i<=5; i++)
  6.     {
  7.         printf("Please enter n:");
  8.         scanf("%d", &n);
  9.         if (n < 0)    break;
  10.         printf("n = %d\n", n);
  11.     }
  12.     printf("Program is over!\n");
  13.     return 0;
  14. }
  15.  
Success #stdin #stdout 0s 5284KB
comments (?)
stdin
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1，2，3，4，5
stdout
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Please enter n:n = 1
Please enter n:n = 1
Please enter n:n = 1
Please enter n:n = 1
Please enter n:n = 1
Program is over!
https://ideone.com/CUmY51
language:
C (gcc 8.3)
created:
6 hours ago
visibility:
public

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