Submission #802880

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
802880	2023-08-02 15:30:21	Theo830	Towers (NOI22_towers)	C++17	5 / 100	2065 ms	302360 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define ii pair<ll,ll>
#define iii pair<ll,ii>
#define F first
#define S second
const ll N = 1e6+5;
int main(){
    set<ii>x[N],y[N];
    ll n;
    cin>>n;
    ll ans[n] = {0};
    set<iii>ek;
    f(i,0,n){
        ll a,b;
        cin>>a>>b;
        ek.insert(iii(i,ii(a,b)));
        x[a].insert(ii(b,i));
        y[b].insert(ii(a,i));
    }
    while(!ek.empty()){
        auto it = ek.begin();
        ll a = (*it).S.F,b = (*it).S.S;
        if(x[a].size() > 1){
            for(auto z:x[a]){
                ek.erase(iii(z.S,ii(a,z.F)));
                y[z.F].erase(ii(a,z.S));
 
 
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• Subtask 1: 5 / 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