Submission #408883

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
408883	2021-05-19 18:49:48	ScarletS	Village (BOI20_village)	C++17	100 / 100	119 ms	16632 KiB

Village

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#include <bits/stdc++.h>
using namespace std;
const int N = 1e5+1;
int n, ct, sub[N], eC[N], ans[2][N], cost;
long long tot;
bitset<N> done;
vector<int> e[N], v;
void dfs(int c, int p)
{
    int mx=0;
    sub[c]=1;
    for (int i : e[c])
        if (i!=p)
        {
            dfs(i,c);
            sub[c]+=sub[i];
            tot+=min(sub[i],n-sub[i])*2;
            mx=max(mx,sub[i]);
        }
    if (max(mx,n-sub[c])<=n/2)
        ct=c;
}
void dfsAns(int c, int p)
{
    v.push_back(c);
    for (int i : e[c])
        if (i!=p)
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 38 / 38
• Subtask 3: 50 / 50