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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int a=0,n,m=1,q=0,r,w,s=0;
  5. 	scanf("%d",&n);
  6. 	while(a!=n){
  7. 		while(q!=a){
  8. 			m=m*3;
  9. 			q=q+1;
  10. 		}
  11. 		a=a+1;
  12. 		w=2*m;
  13. 		s=s+w;
  14. 	}
  15. 	printf("%d",s);
  16. 	return 0;
  17. }
  18.  
Success #stdin #stdout 0s 5320KB
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https://ideone.com/GZYNIy
1Q-4 課題３
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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