Submission #1160760

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1160760	2025-03-03 03:26:07	12345678	Curtains (NOI23_curtains)	C++20	100 / 100	710 ms	244556 KiB

curtains

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#include <bits/stdc++.h>
using namespace std;
const int nx=5e5+5, kx=20;
int n, m, q, dp[nx], l, r, st[nx], ed[nx], res[nx], layer[nx], val[nx][kx], pv[nx][kx], idx, sz, single[nx];
vector<int> sl[nx], sr[nx], upperr[nx], lowerl[nx], v;
void precompute(int l, int r, int lvl)
{
    if (l==r) return;
    int md=(l+r)/2;
    layer[md]=lvl;
    precompute(l, md, lvl+1), precompute(md+1, r, lvl+1);
    for (int i=md+1; i<=r; i++) upperr[i].push_back(md+1);
    for (int i=md; i>=l; i--) lowerl[i].push_back(md);
}
void solve(int l, int r, vector<int> &cur)
{
    if (cur.empty()) return;
    if (l==r)
    {
        for (auto idx:cur) res[idx]=single[l];
        return;
    }
    int md=(l+r)/2;
    vector<int> qrs, ql, qr;
    for (auto idx:cur)
 
 
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• Subtask 1: 3 / 3
• Subtask 2: 6 / 6
• Subtask 3: 15 / 15
• Subtask 4: 20 / 20
• Subtask 5: 36 / 36
• Subtask 6: 20 / 20