제출 #767732

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
767732	2023-06-27 06:07:40	PurpleCrayon	Tourism (JOI23_tourism)	C++17	100 / 100	668 ms	61844 KiB

tourism

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#include <bits/stdc++.h>
using namespace std;
 
#define sz(v) int(v.size())
#define ar array
typedef long long ll;
const int N = 1e5+10, MOD = 1e9+7;
const int L = 19;
struct FT {
    vector<int> bit;
    FT(int n): bit(n) {}
    void upd(int i, int x) {
        for (; i < sz(bit); i |= i+1) bit[i] += x;
    }
    int qry(int i) {
        int ans = 0;
        for (++i; i > 0; i &= i-1) ans += bit[i-1];
        return ans;
    }
};
int n, m, q, st[N], en[N], depth[N], tt = 0;
vector<int> adj[N];
vector<int> lca_et;
int sparse[2 * N][L], st_lca[N], en_lca[N];
 
 
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