Submission #138395

#	Time	Username	Problem	Language	Result	Execution time	Memory
138395		arthurconmy	Roller Coaster Railroad (IOI16_railroad)	C++14	0 / 100	154 ms	10876 KiB

railroad

#include <bits/stdc++.h>
#ifndef ARTHUR_LOCAL
	#include "railroad.h"
#endif
using namespace std;
using ll=long long;

const int MAXN = 200000;

ll plan_roller_coaster(vector<int> s, vector<int> t) 
{
	int n = s.size();

	vector<pair<int,int>> TS;

	for(int i=0; i<n; i++)
	{
		TS.push_back({t[i],s[i]});
	}

	sort(TS.begin(),TS.end());

	vector<int> vals;

	for(int i=0; i<n; i++)
	{
		int k = lower_bound(TS.begin(),TS.end(),make_pair(TS[i].second,0)) - TS.begin();
		// if(TS[0].first > TS[i].second) vals.push_back(-1);
		vals.push_back(k);
	}

	sort(vals.begin(),vals.end());

	int offences=0;

	for(int i=0; i<vals.size(); i++)
	{
		if(vals[i] < i) offences++;
	}

	if(offences>1) return 1;
	return 0;
}

Compilation message (stderr)

railroad.cpp: In function 'll plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:36:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<vals.size(); i++)
               ~^~~~~~~~~~~~

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