Submission #1166984

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1166984	2025-03-15 01:46:57	dragst	Spring cleaning (CEOI20_cleaning)	C++20	100 / 100	220 ms	24644 KiB

cleaning

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#include <bits/stdc++.h>
using namespace std;
long long m=1, k=1, p[100005], h[100005], st[400005], lazy[400005], dp[100005], tour[100005];
long long sz[100005], nxt[100005], head[100005], chain[100005], pos[100005], check[100005];
vector<long long> adj[100005], vv;
void dfs(long long x)
{
    sz[x]=1;
    for (auto y: adj[x])
    {
        if (y!=p[x])
        {
            h[y]=h[x]+1;
            p[y]=x;
            dfs(y);
            sz[x]+=sz[y];
            if (sz[y]>sz[nxt[x]]) {nxt[x]=y;};
            dp[x]+=dp[y];
            dp[x]%=2;
            if (dp[x]==0) {dp[x]=2;};
        };
    };
    if (x>1 && adj[x].size()==1) {dp[x]=1;};
}
void hld(long long x)
{
    if (head[m]==0) {head[m]=x;};
 
 
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