Submission #60114

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
60114	2018-07-23 16:52:58	naderjemel	Race (IOI11_race)	C++14	100 / 100	1136 ms	98020 KiB

race

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#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define MAX_N 200000
#define MAX_K 1000000
vector<vector<pair<int,int> >  > adj;
int n,k,nn;
bool pross[MAX_N];
int sub[MAX_N],cnt;
int dist[MAX_K],book[MAX_K],bk,rs;
int dfs(int u, int p){nn++;
    sub[u]=0;
    for(pair<int,int> i:adj[u]){
        if(!pross[i.first] && i.first!=p){
            dfs(i.first,u);
            sub[u]+=1+sub[i.first];
        }
    }
    return sub[u];
}
int find(int u, int p){
    for(pair<int,int> i:adj[u]){
        if(!pross[i.fi] && i.fi!=p && sub[i.fi]>nn/2){
            return find(i.fi,u);
        }
    }
    return u;
}
void check(int u, int p, int ed, int d){
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57