Submission #162578

#	Time	Username	Problem	Language	Result	Execution time	Memory
162578		MohamedAhmed04	Roller Coaster Railroad (IOI16_railroad)	C++14	0 / 100	960 ms	19940 KiB

railroad

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

using namespace std ;

vector<int>a , b ;
int n ;

vector< pair<int , int> >vp ;

bool solve(pair<int , int>p)
{
	set< pair<int , int> >s ;
	set< pair<int , int> >::iterator it ;
	for(int i = 0 ; i < n ; ++i)
		s.insert(vp[i]) ;
	for(int i = 0 ; i < n-1 ; ++i)
	{
		s.erase(p) ;
		it = s.lower_bound({p.second , -1}) ;
		if(it == s.end())
			return 0 ;
		p = *it ;
	}
	return 1 ;
}

long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    n = (int) s.size();
    a = s , b = t ;
    for(int i = 0 ; i < n ; ++i)
    	vp.push_back({a[i] , b[i]}) ;
    sort(vp.begin() , vp.end()) ;
    for(int i = 0 ; i < 10 ; ++i)
    {
    	if(solve(vp[i]) == 1)
    		return 0 ;
    }
    return 1 ;
}

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