fork download
copy 
  1. #include <stdio.h>
  2. //正の奇数nを引数とし，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(0==n%2){
  8.         return rec(n-1);
  9.     }
  10.     else {
  11.     	return n+rec(n-2);
  12.  
  13.     }
  14. }
  15. int main(void) {
  16.     int n = 6;
  17.     printf("%d以下の正の奇数の和は%d\n", n, rec(n));
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 5316KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
6以下の正の奇数の和は9
https://ideone.com/YrY5ZV
language:
C (gcc 8.3)
created:
5 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!