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  1. #include <stdio.h>
  2. //練習問題D
  3. int func(int n){
  4. 	if(n==0){
  5. 		return -1;
  6. 	}
  7. 	else{
  8. 		return 3*func(n-1)+5;
  9. 	}
  10. }
  11. int main(void) {
  12. 	int n , m;
  13. 	scanf("%d",&n);
  14.     m = func(n);
  15.     printf("数列anについて, n=%dのときの値は%d\n", n, m);
  16. 	return 0;
  17. }
  18.  
Success #stdin #stdout 0s 5288KB
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3
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数列anについて, n=3のときの値は38
https://ideone.com/FcJ7mO
language:
C (gcc 8.3)
created:
8 days ago
visibility:
public

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