Submission #960367

#	Time	Username	Problem	Language	Result	Execution time	Memory
960367		ALTAKEXE	Coreputer (IOI23_coreputer)	C++17	20 / 100	1 ms	596 KiB

coreputer

#include <bits/stdc++.h>
using namespace std;
int run_diagnostic(std::vector<int> T);
vector<int> malfunctioning_cores(int n)
{
	int l = 0, r = n - 1, mid = 0, best = n - 1;
	while (l <= r)
	{
		mid = (l + r) / 2;
		vector<int> v;
		for (int x = 0; x <= mid; x++)
			v.push_back(x);
		int hold = run_diagnostic(v);
		if (hold == 1 || hold == 0)
		{
			best = mid;
			r = mid - 1;
		}
		else
			l = mid + 1;
	}
	set<int> st;
	for (int x = best; x < n; x++)
	{
		vector<int> v;
		for (int y = 0; y <= x; y++)
		{
			if (st.find(y) != st.end())
				continue;
			v.push_back(y);
		}
		int hold = run_diagnostic(v);
		if (hold == 1 || hold == 0)
			st.insert(x);
	}
	set<int> st1;
	int best2 = n;
	if (st.size() % 2 == 0)
	{
		best2 = *st.begin();
		st1.insert(*st.begin());
		st.erase(st.begin());
		st1.insert(*st.begin());
		st.erase(st.begin());
	}
	else
	{
		best2 = *st.begin();
		st1.insert(*st.begin());
		st.erase(st.begin());
	}
	for (int x = best2 - 1; x >= 0; x--)
	{
		vector<int> v;
		for (int y = n - 1; y >= x; y--)
		{
			if (st1.find(y) != st1.end())
				continue;
			v.push_back(y);
		}
		int hold = run_diagnostic(v);
		if (hold == 1 || hold == 0)
		{
			st1.insert(x);
		}
	}

	for (auto it : st1)
		st.insert(it);
	vector<int> ans;
	for (int x = 0; x < n; x++)
	{
		if (st.find(x) == st.end())
			ans.push_back(0);
		else
			ans.push_back(1);
	}
	return ans;
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 40