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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define MAX 20005
  4. int value[MAX];
  5. int parent[MAX];
  6.  
  7. void bfs(int n){
  8. 	queue<int> q;
  9. 	q.push(1);
  10. 	parent[1] = 0;
  11. 	while(!q.empty()){
  12. 		int current = q.front();
  13. 		q.pop();
  14. 		if(current == 0){
  15. 			stack<int> st;
  16. 			while(parent[current]){
  17. 				st.push(value[current]);
  18. 				current = parent[current];
  19. 			}
  20. 			st.push(1);
  21. 			while(!st.empty()){
  22. 				cout<<st.top();
  23. 				st.pop();
  24. 			}
  25. 			cout<<endl;
  26. 			break;
  27. 		}
  28. 		int temp = (current*10)%n;
  29. 		if(parent[temp]==-1){
  30. 			q.push(temp);
  31. 			parent[temp] = current;
  32. 			value[temp] = 0;
  33. 		}
  34.  
  35. 		temp = (current*10)+1;
  36. 		temp = temp%n;
  37. 		if(parent[temp]==-1){
  38. 			q.push(temp);
  39. 			parent[temp] = current;
  40. 			value[temp] = 1;
  41. 		}
  42. 	}
  43. }
  44.  
  45. int main(){
  46.  
  47.  
  48. 	ios_base::sync_with_stdio(false);
  49. 	#ifndef ONLINE_JUDGE
  50. 	freopen("input.in","r",stdin);
  51. 	freopen("output.out","w",stdout);
  52. 	#endif
  53.  
  54. 	int t,n;
  55. 	cin>>t;
  56. 	while(t--){
  57. 		cin>>n;
  58. 		for(int i=0;i<=n;i++)
  59. 			parent[i] = -1;
  60. 		bfs(n);
  61. 	}
  62. 	return 0;
  63. }
Success #stdin #stdout 0s 3624KB
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https://ideone.com/JDnBN5
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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