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  1. // AUTHOR : SOUMEN SEN 
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4. vector<int>adj[100];
  5. int visited[100];
  6.  
  7. void revisited(int n) {
  8. 	for(int i = 1; i<=n; i++) {
  9. 		visited[i] = 0;
  10. 	}
  11. }
  12.  
  13. void dfs(int node) {
  14. 	visited[node] = 1;
  15. 	for(auto neighbour:adj[node]) {
  16. 		if(!visited[neighbour]) {
  17. 			dfs(neighbour);
  18. 		}
  19. 	}
  20. 	cout<<node<<" ";
  21. }
  22.  
  23. void bfs(int node) {
  24. 	queue<int> q;
  25. 	visited[node] = 1;
  26. 	q.push(node);
  27.  
  28. 	while(!q.empty()) {
  29. 		int current = q.front();
  30. 		q.pop();
  31. 		cout<<current<<" ";
  32.  
  33. 		for(auto neighbour : adj[current]) {
  34. 			if(!visited[neighbour]) {
  35. 				visited[neighbour] = 1;
  36. 				q.push(neighbour);
  37. 			}
  38. 		}
  39. 	}
  40. }
  41.  
  42. int main() {
  43. 	freopen("input.txt","r",stdin);
  44. 	int vertices, edges;
  45. 	cin>>vertices>>edges;
  46.  
  47. 	revisited(vertices);
  48.  
  49. 	for(int i = 0; i<edges; i++) {
  50. 		int u,w;
  51. 		cin>>u>>w;
  52. 		if(u == w) {
  53. 			adj[u].push_back(w);
  54. 		}
  55. 		else {
  56. 			adj[u].push_back(w);
  57. 			adj[w].push_back(u);
  58. 		}
  59. 	}
  60. cout<<"\n\n--------------------------------- adjacency List -------------------------\n\n";
  61. 	for(int i = 1; i<=vertices; i++) {
  62. 		cout<<i<<" : ";
  63. 		for(auto height : adj[i]) {
  64. 			cout<<height<<" ";
  65. 		}
  66. 		cout<<endl;
  67. 	}
  68. 	cout<<"-------------------- Travarsal ----------------------------\n\n";
  69.  
  70. 	cout<<"---------------------DFS---------------\n";
  71. 	dfs(1);
  72. 	cout<<endl;
  73.  
  74. 	cout<<"---------------------BFS---------------\n";
  75. 	revisited(vertices);
  76. 	bfs(1);
  77. 	cout<<endl;
  78. }
Success #stdin #stdout 0.01s 5288KB
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stdin
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Standard input is empty
stdout
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--------------------------------- adjacency List -------------------------

1 : 
2 : 
-------------------- Travarsal ----------------------------

---------------------DFS---------------
1 
---------------------BFS---------------
1
https://ideone.com/biDdvE
language:
C++ (gcc 8.3)
created:
8 days ago
visibility:
public

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