Submission #777085

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
777085	2023-07-08 15:58:34	LeaRouse	Race (IOI11_race)	C++14	21 / 100	3073 ms	22028 KiB

race

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#include <bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(0); cin.tie(0);
#define ll long long
#define ff first
using namespace std;
const int MAX=2e5+5;
vector<pair<int,int>>v[MAX];
int D[MAX],Ni[MAX],vis[MAX],pa[MAX][25];
void st(int n){
    for(int j=1;j<20;j++){
        pa[0][j]=0;
        for(int i=1;i<n;i++){
            pa[i][j]=pa[pa[i][j-1]][j-1];
        }
    }
    
}
int lca(int x,int y){
    if(Ni[y]>Ni[x])   swap(x,y);
    int dif=Ni[x]-Ni[y];
    for(int i=20;i>=0;i--){
        if(dif&(1<<i)){
            dif-=(1<<i);
            x=pa[x][i];
        }
    }
    if(y==x)    return x;
    for(int i=18;i>=0;i--){
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 0 / 22
• Subtask 4: 0 / 57