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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	// your code goes here
  5.     int a,sum,i;
  6.     printf("请输入一个大于等于3的整数:");
  7.     scanf("%d",&a);
  8.     while(i<=a)
  9.     { sum+=i;
  10.       i++;
  11.     }
  12.     printf("%d",sum);
  13. 	return 0;
  14. }
  15.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
3
stdout 
请输入一个大于等于3的整数:6
https://ideone.com/1T5XD3
language:
C (gcc 8.3)
created:
22 hours ago
visibility:
public

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