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  1. #include <stdio.h>
  2. int rec(int n){
  3.     if (n == 1){
  4.         return 1;
  5.     }
  6.     else{
  7.         return n+rec(n-2);
  8.     }
  9. }
  10. int main(void) {
  11.     int n = 11;
  12.     printf("%d以下の正の奇数の和は%d\n", n, rec(n));
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 5320KB
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Standard input is empty
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11以下の正の奇数の和は36
https://ideone.com/qbr0WL
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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