fork download
copy 
  1. #include <stdio.h>
  2. //正の奇数nを引数とし，n以下の正の奇数の和を求める関数
  3. int rec(int n){
  4.     if (n == 1){
  5.         return 1;
  6.     }
  7.     else if (n == 0){
  8.     	return 0;
  9.     }
  10.     else{
  11.         return n + rec(n - 2);
  12.     }
  13. }
  14. int main(void) {
  15.     int n = 10;
  16.     printf("%d以下の正の偶数の和は%d\n", n, rec(n));
  17.     return 0;
  18. }
  19.  
Success #stdin #stdout 0s 5308KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
10以下の正の偶数の和は30
https://ideone.com/G78d8L
language:
C (gcc 8.3)
created:
11 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!