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  1. #include <stdio.h>
  2. int func(int n){
  3. 	if(n==0)
  4. 		return -1;
  5. 	else
  6. 		return 3*func(n-1)+5;
  7. }
  8. int main(void) {
  9. 	// your code goes here
  10. 	int n=3,m;
  11. 	printf("数列anについて、n=%dの時%d",n,func(n));
  12. 	return 0;
  13. }
  14.  
Success #stdin #stdout 0s 5284KB
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数列anについて、n=3の時38
https://ideone.com/OshTvj
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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