Submission #859702

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
859702	2023-10-10 13:42:01	pemguimn	Two Currencies (JOI23_currencies)	C++14	100 / 100	3754 ms	65432 KiB

currencies

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#include <bits/stdc++.h>
#define int long long
#define pii pair<int, int>
#define pb push_back
#define gcd __gcd
#define endl "\n"
#define task "hihi"
using namespace std;
const int N = 1e5 + 5, MOD = 1e9 + 7;  
int n, m, q, par[18][N], h[N], c[N], num[N], tail[N], lo[N], hi[N], bit1[N], bit2[N], ans[N], timedfs = 0;
vector<pii> edges(N + 5);
vector<int> adj[N];
vector<int> pos[N];
array<int, 4> a[N];
pii b[N];
void dfs(int i, int pre){
    num[i] = ++timedfs;
    for(int x : adj[i]){
        if(x == pre) continue;
        h[x] = h[i] + 1;
        par[0][x] = i;
        for(int j = 1; j < 18; j++) par[j][x] = par[j - 1][par[j - 1][x]];
        dfs(x, i);
    }
    tail[i] = timedfs;
}
void upd(int bit[], int x, int val){
    for(; x <= n; x += x & -x){
        bit[x] += val;
    }
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 28 / 28
• Subtask 3: 30 / 30
• Subtask 4: 32 / 32