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  1. #include <stdio.h>
  2.  
  3. int sum(int n) {
  4.     int sum_value= 0;
  5.     int i;
  6.     for(i = 1; i <= n; i++) {
  7.         sum_value += i;
  8.     }
  9.     return sum_value;
  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 5316KB
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stdin
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1，10
stdout
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1から10までの和は55
https://ideone.com/1nq9Sg
language:
C (gcc 8.3)
created:
8 days ago
visibility:
public

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