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  1. #include <stdio.h>
  2.  
  3. int main(){
  4. 	int a[30]={2,-1},i;
  5. 	for(i=2;i<30;i++){
  6. 		a[i]=-a[i-1]+a[i-2]+2;
  7. 		if(a[i]>5000){
  8. 			printf("5000を超えたのは%d個目、値は%d",i+1,a[i]);
  9. 			break;
  10. 		}
  11. 	}
  12. 	return 0;
  13. }
Success #stdin #stdout 0.01s 5296KB
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Standard input is empty
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5000を超えたのは19個目、値は7754
https://ideone.com/5xwAD3
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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