제출 #99612

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
99612		KLPP	Roller Coaster Railroad (IOI16_railroad)	C++14	0 / 100	364 ms	16784 KiB

railroad

#include "railroad.h"
#include<bits/stdc++.h>

using namespace std;
typedef set<pair<int,int> >::iterator sit;

/*operator < (pair<int,int> a, pair<int,int> b){
    if(a.first<b.first)return true;
    if(b.first>a.first)return false;
    return a.second<b.second;
}*/
long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    int n = (int) s.size();
    set<pair<int,int> > S;
    for(int i=0;i<n;i++){//cout<<s[i]<<" "<<t[i]<<endl;
        S.insert(pair<int,int> (s[i],t[i]));
    }
    int pos=-10000;
    while(!S.empty()){
        //cout<<pos<<endl;
        sit it=S.upper_bound(pair<int,int>(pos-1,1000000001));
        if(it==S.end()){
            return 1;
        }
        pos=it->second;
        S.erase(it);
    }
    return 0;
}

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