Submission #710852

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
710852	2023-03-16 02:19:28	Darren0724	Jail (JOI22_jail)	C++17	100 / 100	1318 ms	287696 KiB

jail

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#include<bits/stdc++.h>
using namespace std;
const int N=120005;
const int K=18;
int n,m;
vector<vector<int>> adj;
vector<vector<int>> g;
vector<vector<int>> jump(K,vector<int>(N));
vector<int> deep(N);
vector<int> s1;
vector<int> t1;
void dfs(int k,int pa){
    jump[0][k]=pa;
    for(int i=1;i<K;i++){
        jump[i][k]=jump[i-1][jump[i-1][k]];
    }
    for(int j:adj[k]){
        if(j==pa){
            continue;
        }
        deep[j]=deep[k]+1;
        dfs(j,k);
    }
}
int lca(int a,int b){
    if(deep[a]<deep[b]){
        swap(a,b);
    }
    int d=deep[a]-deep[b];
    for(int i=0;i<K;i++){
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 16 / 16
• Subtask 4: 28 / 28
• Subtask 5: 12 / 12
• Subtask 6: 11 / 11
• Subtask 7: 23 / 23