ACM U of T Tryouts C0 B - Interleaving Leaves

    1#include <bits/stdc++.h>
    2using namespace std;
    3using ll = long long;
    4const int inf = 1e9;
    5const long long INF = 1e17; //❄️
    6int main() {
    7    ios::sync_with_stdio(0); cin.tie(0); 
    8    int t, n; cin >> t;
    9    while (t--) {
    10        cin >> n;
    11        vector<char> x(n), y(n);
    12        for (int i = n - 1; i >= 0; i--) cin >> x[i];
    13        for (int i = n - 1; i >= 0; i--) cin >> y[i];
    14        for (int i = 0; i < n; i++) {
    15            cout << y[i] << x[i];
    16        }
    17        cout << '\n';
    18    }
    19    return 0;
    20}