Submission #990707

#	Time	Username	Problem	Language	Result	Execution time	Memory
990707		vjudge1	Dijamant (COI16_dijament)	C++17	56 / 100	2032 ms	1024 KiB

dijament

#include <bits/stdc++.h>

using namespace std;

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(NULL);
	cout.tie(NULL);
	set<string> add;
	int n;
	cin>>n;
	bitset<1000> inh[n],der[n],t,t1,dec;
	map<string,int> ind;
	for (int oops=0;oops<n;oops++)
	{
		string s;
		cin>>s;
		string ans="ok";
		if (add.find(s)!=add.end())
			ans="greska";
		string s1;
		vector<string> v;
		cin>>s1;
		while (1)
		{
			cin>>s1;
			if (s1==";")
				break;
			if (add.find(s1)==add.end())
				ans="greska";
			v.push_back(s1);
		}
		if (ans=="ok")
		{
			ind[s]=add.size();
			add.insert(s);
			for (auto i:v)
			{
				inh[ind[s]].set(ind[i]);
				inh[ind[s]]|=inh[ind[i]];
			}
			for (int i=0;i<n;i++)
				if (inh[ind[s]][i])
					der[i].set(ind[s]);
			for (int i=0;i<n;i++)
			{
				if (!inh[ind[s]][i])
					continue;
				t=der[i]&inh[ind[s]];
				dec.reset();
				for (int j=0;j<n;j++)
					if (t[j])
					{
						t1=inh[j]&dec;
						if (!t1.count())
							dec.set(j);
					}
				if (dec.count()>1)
				{
					ans="greska";
					break;
				}
			}
			if (ans=="greska")
			{
				for (int i=0;i<n;i++)
					if (inh[ind[s]][i])
						der[i].set(ind[s],0);
				inh[ind[s]].reset();
				ind.erase(s);
				add.erase(s);
			}
		}
		cout<<ans<<'\n';
	}
	
	return 0;
}

• Subtask 1: 13 / 13
• Subtask 2: 14 / 14
• Subtask 3: 29 / 29
• Subtask 4: 0 / 44