oj.uz

Submission #605804

# Submission time Handle Problem Language Result Execution time Memory
605804 2022-07-26T02:30:01 Z maximath_1 ICC (CEOI16_icc) C++11
57 / 100
 1436 ms 1500 KB 
#include <bits/stdc++.h>
#include "icc.h"
using namespace std;
 
const int MX = 105;
 
int par[MX];
int find(int nw){
	return par[nw] = (par[nw] == nw ? nw : find(par[nw]));
}
mt19937 rng(time(NULL));
int ban[MX][MX];
void run(int N){
	for(int i = 1; i <= N; i ++)
		par[i] = i;
	for(int times = 1; times < N; times ++){
      	memset(ban, 0, sizeof(ban));
		vector<int> color(N + 1, -1), lf, rg;
		set<vector<int> > cc;
		int gt = 0;
		do{
          	int mx = 0;
          	for(int _ = 0; _ < 200; _ ++){
              for(int i = 1; i <= N; i ++) if(find(i) == i)
				color[i] = rng() % 2;
              for(int i = 1; i <= N; i ++) color[i] = color[find(i)];
              if(cc.count(color)) continue;
              cc.insert(color);
              vector<int> nlf, nrg;
              for(int i = 1; i <= N; i ++)
                  if(color[i]) nrg.push_back(i);
                  else nlf.push_back(i);
              int cnt = 0;
              for(int i : nlf) for(int j : nrg) cnt += !ban[i][j];
              if(mx < cnt){
                mx = cnt; lf = nlf; rg = nrg;
			  }
            }
			int xl[lf.size()], xr[rg.size()];
			for(int i = 0; i < lf.size(); i ++) xl[i] = lf[i];
			for(int i = 0; i < rg.size(); i ++) xr[i] = rg[i];
			if(lf.empty() || rg.empty()) continue;
			gt = query(lf.size(), rg.size(), xl, xr);
          	if(gt == 0){
              for(int i : lf) for(int j : rg) ban[i][j] = ban[j][i] = 1;
			}
		}while(gt == 0);
 
		int l = 0, r = rg.size() - 1, rs = r + 1;
		for(int md; l <= r;){
			md = (l + r) / 2;
			vector<int> nrg;
			for(int j = 0; j <= md; j ++) nrg.push_back(rg[j]);
			int xl[lf.size()], xr[nrg.size()];
			for(int i = 0; i < lf.size(); i ++) xl[i] = lf[i];
			for(int i = 0; i < nrg.size(); i ++) xr[i] = nrg[i];
			gt = query(lf.size(), nrg.size(), xl, xr);
			if(gt){
				rs = md; r = md - 1;
			}else{
				l = md + 1;
			}
		}
 
		int u = rg[rs]; rg.clear(); rg.push_back(u);
		swap(lf, rg);
 
		l = 0, r = rg.size() - 1, rs = r + 1;
		for(int md; l <= r;){
			md = (l + r) / 2;
			vector<int> nrg;
			for(int j = 0; j <= md; j ++) nrg.push_back(rg[j]);
			int xl[lf.size()], xr[nrg.size()];
			for(int i = 0; i < lf.size(); i ++) xl[i] = lf[i];
			for(int i = 0; i < nrg.size(); i ++) xr[i] = nrg[i];
			gt = query(lf.size(), nrg.size(), xl, xr);
			if(gt){
				rs = md; r = md - 1;
			}else{
				l = md + 1;
			}
		}
 
		int v = rg[rs];
 
		setRoad(u, v);
		u = find(u); v = find(v);
		par[u] = v;
	}
}

Compilation message

icc.cpp: In function 'void run(int)':
icc.cpp:40:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |    for(int i = 0; i < lf.size(); i ++) xl[i] = lf[i];
      |                   ~~^~~~~~~~~~~
icc.cpp:41:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |    for(int i = 0; i < rg.size(); i ++) xr[i] = rg[i];
      |                   ~~^~~~~~~~~~~
icc.cpp:55:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |    for(int i = 0; i < lf.size(); i ++) xl[i] = lf[i];
      |                   ~~^~~~~~~~~~~
icc.cpp:56:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |    for(int i = 0; i < nrg.size(); i ++) xr[i] = nrg[i];
      |                   ~~^~~~~~~~~~~~
icc.cpp:74:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |    for(int i = 0; i < lf.size(); i ++) xl[i] = lf[i];
      |                   ~~^~~~~~~~~~~
icc.cpp:75:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |    for(int i = 0; i < nrg.size(); i ++) xr[i] = nrg[i];
      |                   ~~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 468 KB Ok! 103 queries used.
2 Correct 7 ms 592 KB Ok! 101 queries used.

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 804 KB Ok! 533 queries used.
2 Incorrect 781 ms 920 KB Number of queries more than 5000 out of 2500
3 Halted 0 ms 0 KB -

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 276 ms 1092 KB Ok! 1350 queries used.
2 Incorrect 1436 ms 1500 KB Number of queries more than 4500 out of 2250
3 Halted 0 ms 0 KB -

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 362 ms 1284 KB Ok! 1402 queries used.
2 Correct 423 ms 1276 KB Ok! 1453 queries used.
3 Correct 681 ms 1280 KB Ok! 1694 queries used.
4 Correct 276 ms 1108 KB Ok! 1331 queries used.

Subtask #5
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 679 ms 1388 KB Ok! 1691 queries used.
2 Correct 731 ms 1276 KB Ok! 1704 queries used.
3 Correct 703 ms 1272 KB Ok! 1722 queries used.
4 Correct 584 ms 1280 KB Ok! 1630 queries used.
5 Correct 375 ms 1112 KB Ok! 1423 queries used.
6 Correct 586 ms 1100 KB Ok! 1613 queries used.

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 689 ms 1272 KB Too many queries! 1691 out of 1625
2 Halted 0 ms 0 KB -