Boilerplate for cpp problems

bplate.cpp

#include <bits/stdc++.h>
#define let const auto
#define REP(var, i) for (int var = 0; var < i; ++var)
using namespace std;
using Int = int;
//using Int = long long;
using vi = vector<Int>;
using vvi = vector< vector<Int> >;

void solve() {
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    solve();
}