oj.uz

Submission #24639

# Submission time Handle Problem Language Result Execution time Memory
24639 2017-06-10T19:25:51 Z bill_kondo ICC (CEOI16_icc) C++14
18 / 100
 116 ms 2092 KB 
#include "icc.h"
#include <bits/stdc++.h>
using namespace std;

typedef pair <int, int> pii;

const int maxn = 1e2 + 10;

int n;
set <pii> e;

int c[maxn];
int d[maxn];

void acha ()
{
	for (int a = 1; a <= n; ++a)
		for (int b = a + 1; b <= n; ++b)
			if (e.find (pii (a, b)) == e.end())
			{
				c[0] = {a};
				d[0] = {b};

				if (query (1, 1, c, d))
				{
					e.insert (pii (a, b));
					setRoad (a, b);
					return;
				}
			}
}

int pointer;
vector <int> adj[maxn];
bool mrk[maxn];

int node, E[maxn], p;

void combina (int l, int r)
{
	if (l == r)
	{
		node = d[l];
		return;
	}

	int mid = (l + r) >> 1;

	p = 0;

	for (int i = l; i <= mid; ++i)
		E[p++] = d[i];

	if (query (1, p, c, E))
		combina (l, mid);
	else
		combina (mid + 1, r);
}

void dfs (int v)
{
	mrk[v] = true;

	for (auto u: adj[v])
		if (!mrk[u])
			dfs (u);
}

void aresta ()
{	
	for (int v = 1; v <= n; ++v)
	{
		c[0] = v;
	
		for (int u = 1; u <= n; ++u)
			mrk[u] = false;

		dfs (v);

		pointer = 0;
		for (int u = 1; u <= n; ++u)
			if (!mrk[u])
				d[pointer++] = u;

		if (query (1, pointer, c, d))
		{
			combina (0, pointer - 1);
			adj[v].push_back (node);
			adj[node].push_back (v);
			setRoad (v, node);
			return;
		}
	}
}

int pA, A[maxn];
int pB, B[maxn];
int pC, C[maxn];

int nodes[2];

void combine (int id, int l, int r)
{
	if (l == r)
	{
		nodes[id] = B[l];
		return;
	}

	int mid = (l + r) >> 1;

	pC = 0;
	for (int i = l; i <= mid; ++i)
		C[pC++] = B[i];

	if (query (pA, pC, A, C))
		combine (id, l, mid);
	else
		combine (id, mid + 1, r);
}

void solve ()
{
	for (int v = 1; v <= n; ++v)
	{
		c[0] = v;

		for (int u = 1; u <= n; ++u)
			mrk[u] = false;

		dfs (v);

		pA = 0;
		for (int u = 1; u <= n; ++u)
			if (mrk[u])
				A[++pA] = u;

		pB = 0;
		for (int u = 1; u <= n; ++u)
			if (!mrk[u])
				B[pB++] = u;

		if (query (pA, pB, A, B))
		{
			combine (0, 0, pB - 1);

			for (int u = 1; u <= n; ++u)
				mrk[u] = false;

			dfs (nodes[0]);

			for (int i = 1; i <= n; ++i)
				if (!mrk[i])
				{
					c[0] = i;
					d[0] = nodes[0];
					if (query (1, 1, c, d))
					{
						nodes[1] = i;
						break;
					}
				}

			
			adj[nodes[0]].push_back (nodes[1]);
			adj[nodes[1]].push_back (nodes[0]);

			setRoad (nodes[0], nodes[1]);

			return;
		}
	}
}

void run (int N)
{
	n = N;

	for (int i = 1; i <= n - 1; ++i)
	{
		if (N <= 15) acha ();
		else if (N <= 50) aresta ();
		else if (N <= 100) solve ();
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 2092 KB Ok! 1015 queries used.
2 Correct 59 ms 2092 KB Ok! 1010 queries used.

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 2092 KB Ok! 1508 queries used.
2 Correct 106 ms 2092 KB Ok! 1483 queries used.
3 Correct 116 ms 2088 KB Ok! 1517 queries used.

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2056 KB Query cities not in range [1, n]
2 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2056 KB Query cities not in range [1, n]
2 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2056 KB Query cities not in range [1, n]
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2056 KB Query cities not in range [1, n]
2 Halted 0 ms 0 KB -