Submission #44521

#	Time	Username	Problem	Language	Result	Execution time	Memory
44521		MatheusLealV	Coins (IOI17_coins)	C++17	Compilation error	0 ms	0 KiB

coins

#include <bits/stdc++.h>

using namespace std;

vector<int> v;

vector<int> coin_flips(vector<int> a, int x)
{
	int ini = 0, fim = 63, mid;

	set<int> forb, usados;

	vector<int> trocados;

	for(int k = 0; k < 8; k++)
	{
		mid = (ini + fim)/2;

		if( x >= mid)
		{
			if(!a[mid]) usados.insert(mid);

			a[mid] = 1;
			
			ini = mid + 1;

			forb.insert(mid);
		}

		else
		{
			if(a[mid]) usados.insert(mid);

			a[mid] = 0;

			fim = mid - 1;

			forb.insert(mid);
		}
	}

	for(auto x: usados) trocados.push_back(x);

	if( trocados.size() == 0)
	{
		for(int p = 0; p < 64; p++)
			if(!forb.count(p)) trocados.push_back(p);
	}

	return trocados;
}

int find_coin(vector<int> a)
{
	int ini = 0, fim = 63, mid;

	for(int k = 0; k < 20; k++)
	{
		mid = (ini + fim)/2;

		if(a[mid]) ini = mid + 1;

		else fim = mid - 1;
	}

	return mid;
}

char x;

int main()
{
	int k, T, KI;

	cin>>T>>KI;

	while(T --)
	{
		cin>>k;

		for(int i = 0; i < 64; i++) cin>>x, v.push_back(x);

		vector<int> vi = coin_flips(v, k);

		cout<<find_coin(vi)<<"\n";

		v.clear();
	}
}

Compilation message (stderr)

/tmp/ccvaLGG8.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccXy2uQb.o:coins.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status