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  1. #include <stdio.h>
  2.  
  3. int sum(int n){
  4. 	int c = 0;
  5. 	int d;
  6. 	while(n -- > 1)
  7. 		c ++;
  8. 		d = c + d;
  9. 		return d;
  10. }
  11.  
  12. int main(void) {
  13. 	int a,b;
  14.     a = 10;
  15.     b = sum(a);
  16.     printf("1から%dまでの和は%d", a,b );
  17. 	return 0;
  18. }
  19.  
Success #stdin #stdout 0.01s 5288KB
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1から10までの和は9
https://ideone.com/dd7BJV
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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