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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	// your code goes here
  5. 	int data[10];
  6. 	int n,i=0;
  7. 	data[0]= 1;
  8. 	data[1]= 2;
  9.  
  10. 	for(n=2;n<10;n++){
  11. 		data[n]=3*data[n-1]+2*data[n-2];
  12. 	}
  13. 	for(n=0;n<10;n++){
  14. 		if(data[n]>=100&&data[n]<=10000){
  15. 			i++;
  16. 		}
  17. 	}
  18. 		printf("%d個",i);
  19. 	return 0;
  20. }
  21.  
Success #stdin #stdout 0.01s 5292KB
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4個
https://ideone.com/cYAf7A
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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