제출 #711677

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
711677		pcc	Checker (COCI19_checker)	C++14	0 / 110	73 ms	5344 KiB

checker

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

#define pii pair<int,int>
#define fs first
#define sc second
set<int> st;
int main(){
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int n;
    cin>>n>>n;
    string col;
    vector<pair<pii,int>> v(n-3);
    cin>>col;
    for(int i = 0;i<n-3;i++){
        v.push_back({{0,0},0});
        cin>>v[i].fs.fs>>v[i].fs.sc>>v[i].sc;
        if(v[i].fs.fs>v[i].fs.sc)swap(v[i].fs.fs,v[i].fs.sc);
    }
    sort(v.begin(),v.end());
    st.insert(v[0].fs.fs);
    st.insert(v[0].fs.sc);
    for(auto &i:v){
        auto lit = st.upper_bound(i.fs.fs);
        auto rit = st.lower_bound(i.fs.sc);
        if(lit != rit){
            cout<<"neispravna triangulacija\n";
            return 0;
        }
        st.insert(i.fs.fs);
        st.insert(i.fs.sc);
    }
    cout<<"tocno\n";
    return 0;
}

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• Subtask 3: 0 / 23
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35