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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. void printVec(vector<int> f){
  5. 	for(int i=0;i<f.size();i++){
  6. 		cout << f[i];
  7. 	}
  8. 	cout << endl;
  9. }
  10.  
  11. int main() {
  12. 	int t,n;
  13. 	cin >> t;
  14. 	while(t--){
  15. 		cin >> n;
  16. 		if(n%2 == 0)	cout << "0\n";
  17. 		else{
  18. 			int t = n, c = 0;
  19. 			vector<int> temp;
  20. 			while(t>0){
  21. 				temp.push_back(t % 10);
  22. 				t /= 10;
  23. 			}
  24. 			vector<int> a;
  25. 			for(int i=temp.size()-1;i >= 0;--i){
  26. 				a.push_back(temp[i]);
  27. 			}
  28. 			// printVec(temp);
  29. 			// printVec(a);
  30. 			bool even = false;
  31. 			for(int i=0;i<a.size();i++){
  32. 				if(a[i] % 2 == 0){
  33. 					cout << min(2,i+1) << endl;
  34. 					even = true;
  35. 					break;
  36. 				}	
  37. 			}
  38. 			if(!even)	cout << "-1\n";
  39. 		}
  40. 	}
  41. 	return 0;
  42. }
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/yag0FB
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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