Create 133. Clone Graph 8Apr

133. Clone Graph

Author: Chayandas07

133. Clone Graph 8Apr

@@ -0,0 +1,24 @@
+class Solution {
+public:
+    Node* cloneGraph(Node* node) {
+        if(!node) return node;
+        unordered_map<Node*,Node*> m;
+        Node* ans = new Node(node->val,{});
+        m[node]=ans;
+        queue<Node*> q;
+        q.push(node);
+        while(!q.empty()){
+            Node* currNode=q.front();
+            q.pop();
+            vector<Node*> neigh = currNode->neighbors;
+            for(auto x:neigh){
+                if(m.find(x)==m.end()){
+                    m[x] = new Node(x->val,{});
+                    q.push(x);
+                }
+                m[currNode]->neighbors.push_back(m[x]);
+            }
+        }
+        return ans;
+    }
+};