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  1. #include <stdio.h>
  2. //a{n}=2a_{n-1}+3, a{0}=-2(練習問題Ｂ・再帰無し版)
  3. int main(void) {
  4.     int n,an;
  5.     n = 4;
  6. //
  7. 	an = -2;
  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 0s 5288KB
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数列anの4番目の値は13
https://ideone.com/0MaV01
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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