Submission #1177545

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1177545	2025-04-02 09:53:23	LmaoLmao	Race (IOI11_race)	C++17	100 / 100	298 ms	34332 KiB

race

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#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
using ll = long long;
using ii = pair<ll, ll>;
using aa = array<int,3>;
const int INF = 1e9;
int s[200005];
bool del[200005];
vector<ii> adj[200005];
int mp[1000005];
int d,k,ans;
int dfs(int u,int p) {
    s[u]=1;
    for(ii v:adj[u]) {
        if(del[v.fi] || v.fi==p) continue;
        s[u]+=dfs(v.fi,u);
    }
    return s[u];
}
int citron(int u,int p,int sz) {
    for(ii v:adj[u]) {
        if(del[v.fi] || v.fi==p) continue;
        if(s[v.fi]*2>sz) return citron(v.fi,u,sz);
    }
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57