Submission #807562

#	Time	Username	Problem	Language	Result	Execution time	Memory
807562		firewater	Roller Coaster Railroad (IOI16_railroad)	C++14	0 / 100	139 ms	15168 KiB

railroad

#include "railroad.h"
#include<set>
#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
#define fs first
#define sn second
#define mp make_pair
#define ll long long
#define N 202300
using namespace std;
int n,x,now;
set<pair<int,int> >st;
set<pair<int,int> >::iterator it;
long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    n = s.size();
    x=0;
    for(int i=1;i<n;++i)
        if(t[i]>t[x])x=i;
    for(int i=0;i<n;++i)
        if(x!=i)
            st.insert(mp(s[i],i));
    now=1;
    for(int i=0;i<n-1;++i){
        it=st.lower_bound(mp(now,0));
        if(it==st.end())return 1;
        now=t[(*it).sn];
        st.erase(it);
    }
    if(now<=s[x])return 0;
    else return 1;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 23
• Subtask 3: 0 / 30
• Subtask 4: 0 / 36