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  1. #include<iostream>
  2. #include<vector>
  3. using namespace std;
  4. int dirx[4]={0,1,0,-1};
  5. int diry[4]={1,0,-1,0};
  6. bool in(int x,int y,int n,int m){
  7. 	if(x<0 or x>=n or y<0 or y>=m) return true;
  8. 	return false;
  9. }
  10. int bfs(int x,int y,vector<vector<int>> &v,int c,int n,int m){
  11.  
  12. 	if(x<0 or x>=n or y<0 or y>=m) return 0;
  13. 	cout<<x<<' '<<y;
  14. 	bool yes=true;
  15. 	for(int i=0;i<n;i++){
  16. 		for(int j=0;j<m;j++){
  17. 			if(v[i][j]==-1) yes=false;
  18. 		}
  19. 	}
  20. 	if(yes) return 1;
  21. 	int sum=0;
  22. 	for(int i=0;i<4;i++){
  23. 		for(int j=1;j<=c;j++){
  24. 			if(in(x+dirx[i],y+diry[i],n,m)) v[x+dirx[i]][y+diry[i]]=j;
  25. 			bool hi=true;
  26. 			for(int k=0;k<4;k++){
  27. 				if(v[x+dirx[k]+dirx[i]][y+diry[y]+diry[i]]==j and in(x+dirx[k]+dirx[i],y+diry[y]+diry[i],n,m)){
  28. 					hi=false;
  29. 				}
  30. 			}
  31. 			if(hi) sum+=bfs(x+dirx[i],y+diry[i],v,c,n,m);
  32. 			v[x+dirx[i]][y+diry[i]]=-1;
  33. 		}
  34. 	}
  35. 	return sum;
  36. }
  37. int main(){
  38. 	int t;
  39. 	cin>>t;
  40. 	while(t--){
  41. 		int n,m,c;
  42. 		cin>>n>>m>>c;
  43. 		vector<vector<int> > v;
  44. 		for(int i=0;i<n;i++){
  45. 			for(int j=0;j<m;j++){
  46. 				v[i].push_back(-1);
  47. 			}
  48. 		}
  49. 		cout<<bfs(0,0,v,c,n,m)<<'\n';
  50. 	}
  51. }
Runtime error #stdin #stdout 0s 15240KB
comments (?)
stdin
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2
2 2 3
5 2 2
stdout
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Standard output is empty
https://ideone.com/uMFdKp
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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