fork download
copy 
  1. #include <stdio.h>
  2. //練習問題G
  3.  
  4. int func(int n){
  5.     int a, b=2, c=1;
  6.     int i;
  7.     for(i = 2; i < n; i++){
  8.     	a = -2*b+2*c;
  9.  
  10.     	printf("%d\n",b);
  11.     	c = b;
  12.     	b = a;
  13.     	printf("%d\n",c);
  14.     }
  15.     return a;
  16. }
  17. int main(void) {
  18. 	int n = 4;
  19.     printf("数列anについて, n=%dのときの値は%d\n", n, func(n));
  20. 	return 0;
  21. }
  22.  
Success #stdin #stdout 0s 5312KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
2
2
-2
-2
数列anについて, n=4のときの値は8
https://ideone.com/iQiGH0
language:
C (gcc 8.3)
created:
14 hours 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!