Coding/CheckMirrorInN-aryTree.cpp at main · ayushman-777/Coding · GitHub

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// { Driver Code Starts
//Initial Template for C++

#include <bits/stdc++.h>
using namespace std;

 // } Driver Code Ends
//User function Template for C++

class Solution {
  public:
    int checkMirrorTree(int n, int e, int A[], int B[]) {
        unordered_map<int, stack<int>> mp;

        for (int i = 0; i < 2*e; i+=2)
            mp[A[i]].push(A[i+1]);

        for (int i = 0; i < 2*e; i+=2) {
            if (mp[B[i]].top() == B[i+1]) {
                mp[B[i]].pop();
            } else return 0;
        }
        return 1;
    }
};

// { Driver Code Starts.
int main() {
    int t;
    cin >> t;
    while (t--) {
        int n,e;

        cin>>n>>e;
        int A[2*e], B[2*e];

        for(int i=0; i<2*e; i++)
            cin>>A[i];

        for(int i=0; i<2*e; i++)
            cin>>B[i];

        Solution ob;
        cout << ob.checkMirrorTree(n,e,A,B) << endl;
    }
    return 0;
}  // } Driver Code Ends