Submission #886498

#	Time	Username	Problem	Language	Result	Execution time	Memory
886498		vjudge1	Towers (NOI22_towers)	C++17	0 / 100	679 ms	99732 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define endl "\n"
#define all(aa) aa.begin(), aa.end()

int main(){
    int n;
    cin>>n;

    vector<pair<int, int>> city;
    vector<bool> ans(n);
    vector<vector<int>> c(1000000), r(1000000);
    for(int i=0; i<n; i++){
        int a, b;
        cin>>a>>b;
        a--; b--;

        c[a].push_back(i);
        r[b].push_back(i);
        city.emplace_back(a, b);
    }

    for(int i=0; i<1000000; i++){
        if(!c[i].size()) continue;
        int minn=0, maxx=0;
        for(auto j:c[i]){
            if(city[j].second>city[maxx].second) maxx=j;
            if(city[j].second<city[minn].second) minn=j;
        }

        ans[minn]=1;
        ans[maxx]=1;
    }
    for(int i=0; i<1000000; i++){
        if(!c[i].size()) continue;
        int minn=0, maxx=0;
        for(auto j:c[i]){
            if(city[j].first>city[maxx].first) maxx=j;
            if(city[j].first<city[minn].first) minn=j;
        }

        ans[minn]=1;
        ans[maxx]=1;
    }

    for(auto e:ans) cout<<e;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 11
• Subtask 3: 0 / 7
• Subtask 4: 0 / 6
• Subtask 5: 0 / 31
• Subtask 6: 0 / 21
• Subtask 7: 0 / 19