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  1. #include <iostream>
  2. #include <cstdio>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	// your code goes here
  7. 	int t;
  8. 	long n;
  9. 	scanf("%d", &t);
  10. 	while(t--) {
  11. 		scanf("%ld", &n);
  12. 		if(n%7==0) printf("%ld\n", n);
  13. 		else {
  14. 			while(n>0) { n=n-4; if(n%7==0) { printf("%ld\n", n); break; } }
  15. 			if(n%7!=0) printf("-1\n");
  16. 		}
  17. 	}
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 3300KB
comments (?)
stdin 
5
7
4
11
1
15
stdout 
7
0
7
-1
7
https://ideone.com/pyXo1W
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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