Submission #1031676

#	Time	Username	Problem	Language	Result	Execution time	Memory
1031676		pcc	Roller Coaster Railroad (IOI16_railroad)	C++17	0 / 100	114 ms	10868 KiB

railroad

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

#define ll long long
#define pii pair<int,int>
#define fs first
#define sc second
#define pll pair<ll,ll>
#define _all(T) T.begin(),T.end()

const ll inf = 1e18;
const int mxn = 2e5+10;
int dif[mxn];
vector<int> all;
int suf[mxn];

long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
	int N = (int)s.size();
	all.push_back(0);
	for(auto &i:s)all.push_back(i);
	for(auto &i:t)all.push_back(i);
	sort(_all(all));all.resize(unique(_all(all))-all.begin());
	for(auto &i:s)i = lower_bound(_all(all),i)-all.begin();
	for(auto &i:t)i = lower_bound(_all(all),i)-all.begin();
	for(auto &i:s)suf[i]++;
	for(auto &i:t)suf[i]--;
	for(int i = all.size();i>=0;i--){
		suf[i] += suf[i+1];
	}
	return (*min_element(suf,suf+all.size())<-1);
}

Compilation message (stderr)

railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:19:6: warning: unused variable 'N' [-Wunused-variable]
   19 |  int N = (int)s.size();
      |      ^

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