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  1. #include <stdio.h>
  2. //a{n}=2a_{n-1}+3, a{0}=-2(再帰無し版)
  3. int main(void) {
  4.     int n,an;
  5.     n = 4;
  6.     an=-2;
  7.     int i;
  8.     for(int i=0; i<n; i++){
  9.     	an=2*an+3;
  10.     }
  11.  
  12.     printf("数列anの%d番目の値は%d\n", n, an);
  13. 	return 0;
  14. }
  15.  
Success #stdin #stdout 0.01s 5292KB
comments (?)
stdin 
Standard input is empty
stdout 
数列anの4番目の値は13
https://ideone.com/2S5eP2
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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