Submission #944832

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
944832	2024-03-13 06:21:25	phoenix0423	Tourism (JOI23_tourism)	C++17	28 / 100	5040 ms	36688 KiB

tourism

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#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0);
#pragma GCC optimize("Ofast","unroll-loops")
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#define int long long
#define lowbit(x) x&-x
const int maxn = 2e5 + 5;
const int INF = 1e9 + 7;
int n, m, q;
vector<int> adj[maxn];
int dep[maxn], in[maxn], dfn = 0;
int succ[maxn][18];
int id[maxn];
void dfs(int pos, int prev){
    succ[pos][0] = prev;
    for(int i = 1; i < 18; i++) succ[pos][i] = succ[succ[pos][i - 1]][i - 1];
    in[pos] = ++dfn;
    id[dfn] = pos;
    for(auto x : adj[pos]){
        if(x == prev) continue;
        dep[x] = dep[pos] + 1;
        dfs(x, pos);
    }
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 7
• Subtask 4: 18 / 18
• Subtask 5: 0 / 24
• Subtask 6: 0 / 41