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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int a=1;
  5. 	int sum=0;
  6.  
  7. 	printf("正数を入力してください：\n");
  8.  
  9.  
  10. 	while( sum <= 1000 )
  11. 	{
  12. 		sum = sum + a;
  13. 		a = a + 1;
  14. 	}
  15.  
  16. 	printf("1から%dの合計は%dです。 \n",a);
  17. 	return 0;
  18. }
  19.  
Success #stdin #stdout 0s 5300KB
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正数を入力してください：
1から46の合計は0です。
https://ideone.com/q6tTw6
language:
C (gcc 8.3)
created:
4 hours ago
visibility:
public

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