Submission #393385

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
393385	2021-04-23 10:54:19	juggernaut	Race (IOI11_race)	C++14	100 / 100	524 ms	36220 KiB

race

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#include"race.h"
#include<bits/stdc++.h>
#ifdef IOI2021SG
#include"grader.cpp"
#endif
using namespace std;
#define fr first
#define sc second
vector<pair<int,int>>g[200005];
const int INF=2e9;
int k,ans=INF;
int sz[200005];
bool vis[200005];
pair<int,int>mt[1000005];
int timer;
void calc_sz(int v,int p){
    sz[v]=1;
    for(auto to:g[v])if(to.fr!=p&&!vis[to.fr]){
        calc_sz(to.fr,v);
        sz[v]+=sz[to.fr];
    }
}
int centroid(int v,int p,int num){
    for(auto to:g[v])if(to.fr!=p&&!vis[to.fr])
        if(sz[to.fr]>num)return centroid(to.fr,v,num);
    return v;
}
void go(int v,int p,int depth,int weight){
    if(weight>k)return;
    if(mt[k-weight].fr==timer)
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57