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  1. #include <stdio.h>
  2. int sum(int n){
  3. 	int w = 0;
  4. 	for(int i=1;i<=n;i++){
  5. 		w+=i;
  6. 	}
  7. 	return w;
  8. }
  9.  
  10.  
  11. int main(void) {
  12. 	int a,b;
  13. 	a = 10;
  14. 	b=sum(a);
  15. 	printf("１から%dまでの和は%d",a,b);
  16. 	return 0;
  17. }
  18.  
Success #stdin #stdout 0s 5288KB
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１から10までの和は55
https://ideone.com/sHT3z1
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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