Don't use bits/stdc++.h

graph/BFS.cpp

@@ -1,4 +1,4 @@
-#include <bits/stdc++.h>
+#include <iostream>
 using namespace std;
 class graph
 {

graph/DFS.cpp

@@ -1,4 +1,4 @@
-#include <bits/stdc++.h>
+#include <iostream>
 using namespace std;
 int v = 4;
 void DFSUtil_(int graph[4][4], bool visited[], int s)

graph/Kruskal.cpp

@@ -1,4 +1,4 @@
-#include "bits/stdc++.h"
+#include <iostream>
 //#include <boost/multiprecision/cpp_int.hpp>
 //using namespace boost::multiprecision;
 const int mx = 1e6 + 5;

graph/lca.cpp

@@ -1,4 +1,5 @@
-#include<bits/stdc++.h>
+//#include<bits/stdc++.h>
+#include <iostream>
 
 using namespace std;
 // Find the lowest common ancestor using binary lifting in O(nlogn)