Submission #162570

#	Time	Username	Problem	Language	Result	Execution time	Memory
162570		MohamedAhmed04	Roller Coaster Railroad (IOI16_railroad)	C++14	Compilation error	0 ms	0 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()) ;
    if(solve(vp[0]) == 1)
    	return 0 ;
    if(solve(vp[1]) == 1)
    	return 0 ;
    return 1 ;
}

Compilation message (stderr)

/tmp/ccH5Aw2P.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccE5KTTE.o:railroad.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status