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  1. #include <stdio.h>
  2. int sum(int n){
  3.  int c=0,i;
  4.  for(i=1; i<=n; i++) {
  5.  c+=i;
  6. }
  7.  return c;
  8. }
  9.  
  10. int main(void) {
  11. 	int a,b;
  12.     a=10;
  13.     b=sum(a);
  14.     printf("1から%dまでの和は%d", a,b );
  15. 	return 0;
  16. }
  17.  
Success #stdin #stdout 0s 5320KB
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1から10までの和は55
https://ideone.com/bsjrKR
language:
C (gcc 8.3)
created:
6 hours ago
visibility:
public

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