template.cpp

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

class Solution {
public:
    Solution(){
        ios_base::sync_with_stdio(0); cin.tie(0);
    }

    int func(vector<int> v){
        return 0;
    }

};

int main(){
    Solution sol;

    vector<int> v = {1, 2, 3, 4, 5};

    cout << sol.func(v);
}