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  1. #include <stdio.h>
  2. //課題B-1: 1からnまでの和を求めるコードを完成させてください
  3. int sum(int n){
  4. 		int i ,x;
  5. 		int y=0;
  6. 		for(i=0;i<=n;i++){
  7. 			x=n-i;
  8. 			y=y+x;
  9. }
  10. 	return y;
  11. }
  12.  
  13.  
  14. int main(void) {
  15. 	int a,b;
  16.     a = 10;
  17.     b = sum(a);
  18.     printf("1から%dまでの和は%d", a,b );
  19. 	return 0;
  20. }
  21.  
Success #stdin #stdout 0.01s 5320KB
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1から10までの和は55
https://ideone.com/KFNQgR
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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