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  1. #include <stdio.h>
  2. //練習問題F
  3. //an=3an-1+5
  4.  
  5. int func(int n){
  6.     int a=-1;
  7.     int i; 
  8.     for(int i=1;i<=n;i++){
  9.     	a=3*a+5;
  10.     }
  11. return a;
  12. }
  13. int main(void) {
  14. 	int n = 3;
  15.     printf("数列anについて, n=%dのときの値は%d\n", n, func(n));
  16. 	return 0;
  17. }
  18.  
Success #stdin #stdout 0s 5316KB
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数列anについて, n=3のときの値は38
https://ideone.com/ichBxp
language:
C (gcc 8.3)
created:
18 days ago
visibility:
public

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