combine.cpp

#include<bits/stdc++.h>

using namespace std;

pair <int, pair <int, int> > combine(int v){
    pair <int, pair <int, int> > val;

    val.first = t[v << 1].first + t[(v << 1) | 1].first;
    int cnt = min(t[v << 1].second.first, t[(v << 1) | 1].second.second);
    val.first += cnt * 2;
    val.second.first = t[v << 1].second.first +
                                    t[(v << 1) | 1].second.first - cnt;
    val.second.second = t[v << 1].second.second +
                                    t[(v << 1) | 1].second.second - cnt;
    return val;
}

int main() {



    return 0;
}