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  1. #include <stdio.h>
  2. int func(int n){
  3. 	int a[30],i;
  4. 	a[0]=-1;
  5. 	for(i=1;i<=n;i++){
  6. 	a[i]=3*a[i-1]+5;
  7. 	}
  8. 	return a[n];
  9. }
  10. int main(void) {
  11. 	// your code goes here
  12. 	int n=3;
  13. 	printf("数列anについて、n=%dの時の値は%d",n,func(n));
  14. 	return 0;
  15. }
  16.  
Success #stdin #stdout 0s 5284KB
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Standard input is empty
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数列anについて、n=3の時の値は38
https://ideone.com/0DXxnq
language:
C (gcc 8.3)
created:
8 days ago
visibility:
public

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