Submission #75959695

Source Code Expand

#include <bits/stdc++.h>
#pragma GCC optimize("O3,fast-math")
using namespace std;
using ll = long long;
ll n,m,p[505050],u,v,dp[505050],in[505050];
vector<int> g[202020];
signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> m;
    for(int i=1;i<=n;i++) cin >> p[i];
    for(int i=1;i<=m;i++) {
        cin >> u >> v;
        if(p[u]<p[v]) g[u].push_back(v), in[v]++;
    }

    queue<int> q; for(int i=1;i<=n;i++) if(!in[i]) q.push(i);
    fill_n(dp,505050,-1e18); dp[1]=1;
    while(!q.empty()) {
        int cur=q.front(); q.pop();
        for(auto i:g[cur]) {
            dp[i]=max(dp[i],dp[cur]+1);
            in[i]--;
            if(!in[i]) q.push(i);
        }
    }
    ll ans=-1e18;
    for(int i=1;i<=n;i++) ans=max(ans, dp[i]);
    cout << ans;
}

Submission Info

Submission Time
Task D - Mountain Traverse
User Hakuaa_2
Language C++23 (GCC 15.2.0)
Score 400
Code Size 815 Byte
Status AC
Exec Time 69 ms
Memory 21628 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 5
AC × 79
Set Name Test Cases
Sample sample01.txt, sample02.txt, sample03.txt, sample04.txt, sample05.txt
All sample01.txt, sample02.txt, sample03.txt, sample04.txt, sample05.txt, in01.txt, in02.txt, in03.txt, in04.txt, in05.txt, in06.txt, in07.txt, in08.txt, in09.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in40.txt, in41.txt, in42.txt, in43.txt, in44.txt, in45.txt, in46.txt, in47.txt, in48.txt, in49.txt, in50.txt, in51.txt, in52.txt, in53.txt, in54.txt, in55.txt, in56.txt, in57.txt, in58.txt, in59.txt, in60.txt, in61.txt, in62.txt, in63.txt, in64.txt, in65.txt, in66.txt, in67.txt, in68.txt, in69.txt, in70.txt, in71.txt, in72.txt, in73.txt, in74.txt
Case Name Status Exec Time Memory
in01.txt AC 3 ms 7312 KiB
in02.txt AC 3 ms 7292 KiB
in03.txt AC 3 ms 7344 KiB
in04.txt AC 3 ms 7356 KiB
in05.txt AC 3 ms 7348 KiB
in06.txt AC 3 ms 7344 KiB
in07.txt AC 3 ms 7456 KiB
in08.txt AC 46 ms 18172 KiB
in09.txt AC 15 ms 8116 KiB
in10.txt AC 32 ms 21436 KiB
in11.txt AC 48 ms 19112 KiB
in12.txt AC 12 ms 9560 KiB
in13.txt AC 24 ms 11276 KiB
in14.txt AC 47 ms 17988 KiB
in15.txt AC 40 ms 17808 KiB
in16.txt AC 13 ms 8628 KiB
in17.txt AC 23 ms 11864 KiB
in18.txt AC 33 ms 21572 KiB
in19.txt AC 29 ms 16328 KiB
in20.txt AC 35 ms 21628 KiB
in21.txt AC 3 ms 7320 KiB
in22.txt AC 3 ms 7348 KiB
in23.txt AC 3 ms 7348 KiB
in24.txt AC 3 ms 7408 KiB
in25.txt AC 3 ms 7536 KiB
in26.txt AC 34 ms 21436 KiB
in27.txt AC 3 ms 7348 KiB
in28.txt AC 3 ms 7348 KiB
in29.txt AC 3 ms 7312 KiB
in30.txt AC 3 ms 7344 KiB
in31.txt AC 3 ms 7464 KiB
in32.txt AC 3 ms 7368 KiB
in33.txt AC 3 ms 7464 KiB
in34.txt AC 3 ms 7464 KiB
in35.txt AC 45 ms 18716 KiB
in36.txt AC 36 ms 18288 KiB
in37.txt AC 3 ms 7452 KiB
in38.txt AC 3 ms 7348 KiB
in39.txt AC 3 ms 7416 KiB
in40.txt AC 3 ms 7356 KiB
in41.txt AC 3 ms 7320 KiB
in42.txt AC 3 ms 7456 KiB
in43.txt AC 3 ms 7432 KiB
in44.txt AC 3 ms 7420 KiB
in45.txt AC 28 ms 9624 KiB
in46.txt AC 27 ms 9696 KiB
in47.txt AC 69 ms 21512 KiB
in48.txt AC 36 ms 15668 KiB
in49.txt AC 41 ms 17968 KiB
in50.txt AC 50 ms 21500 KiB
in51.txt AC 44 ms 18044 KiB
in52.txt AC 23 ms 11964 KiB
in53.txt AC 47 ms 18696 KiB
in54.txt AC 47 ms 18620 KiB
in55.txt AC 3 ms 7432 KiB
in56.txt AC 3 ms 7344 KiB
in57.txt AC 3 ms 7408 KiB
in58.txt AC 3 ms 7464 KiB
in59.txt AC 3 ms 7432 KiB
in60.txt AC 3 ms 7408 KiB
in61.txt AC 3 ms 7348 KiB
in62.txt AC 3 ms 7420 KiB
in63.txt AC 3 ms 7348 KiB
in64.txt AC 3 ms 7408 KiB
in65.txt AC 3 ms 7452 KiB
in66.txt AC 3 ms 7456 KiB
in67.txt AC 3 ms 7392 KiB
in68.txt AC 3 ms 7420 KiB
in69.txt AC 3 ms 7456 KiB
in70.txt AC 3 ms 7464 KiB
in71.txt AC 3 ms 7344 KiB
in72.txt AC 4 ms 7392 KiB
in73.txt AC 3 ms 7464 KiB
in74.txt AC 3 ms 7452 KiB
sample01.txt AC 3 ms 7348 KiB
sample02.txt AC 3 ms 7344 KiB
sample03.txt AC 3 ms 7356 KiB
sample04.txt AC 3 ms 7432 KiB
sample05.txt AC 3 ms 7464 KiB