oj.uz

Submission #948861

# Submission time Handle Problem Language Result Execution time Memory
948861 2024-03-18T15:35:32 Z phoenix0423 ICC (CEOI16_icc) C++17
100 / 100
 100 ms 1108 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#define lowbit(x) x&-x
#include "icc.h"
const int maxn = 105;
int n;
int par[maxn];
int root(int x){ return x == par[x] ? x : par[x] = root(par[x]);}
vector<int> comp[maxn];
set<pair<vector<int>, vector<int>>> used;

bool qry(int sa, int sb, vector<int> a, vector<int> b){
	int aa[a.size()], bb[b.size()];
	copy(a.begin(), a.end(), aa), copy(b.begin(), b.end(), bb);
	return query(sa, sb, aa, bb);
}

void run(int _n){
	n = _n;
	for(int i = 1; i <= n; i++) comp[i].pb(i), par[i] = i;
	random_device rd;
	mt19937 rng(rd());
	for(int rd = 0; rd < n - 1; rd++){
		used.clear();
		vector<int> cand;
		for(int i = 1; i <= n; i++) if(root(i) == i) cand.pb(i);
		vector<vector<int>> s(2);
		bool c = false;
		shuffle(cand.begin(), cand.end(), rng);
		int lg = 0;
		while(!c){
			s[0].clear(), s[1].clear();
			for(int i = 0; i < cand.size(); i++){
				for(auto u : comp[cand[i]]) s[i >> lg & 1].pb(u);
			}
			if(!s[0].size() || !s[1].size()) continue;
			c = qry(s[0].size(), s[1].size(), s[0], s[1]);
			lg++;
		}
		int l = 0, r = s[0].size() - 1;
		while(l != r){
			int m = (l + r) / 2;
			vector<int> ns;
			for(int i = l; i <= m; i++) ns.pb(s[0][i]);
			c = qry(ns.size(), s[1].size(), ns, s[1]);
			if(c) r = m;
			else l = m + 1;
		}
		vector<int> tmp(1, s[0][l]);
		swap(s[0], tmp);
		l = 0, r = s[1].size() - 1;
		while(l != r){
			int m = (l + r) / 2;
			vector<int> ns;
			for(int i = l; i <= m; i++) ns.pb(s[1][i]);
			c = qry(1, ns.size(), s[0], ns);
			if(c) r = m;
			else l = m + 1;
		}
		setRoad(s[0][0], s[1][l]);
		int a = root(s[0][0]), b = root(s[1][l]);
		par[a] = b;
		for(auto x : comp[a]) comp[b].pb(x);
	}
}

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 < cand.size(); i++){
      |                   ~~^~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 600 KB Ok! 97 queries used.
2 Correct 4 ms 604 KB Ok! 100 queries used.

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 604 KB Ok! 525 queries used.
2 Correct 28 ms 604 KB Ok! 660 queries used.
3 Correct 27 ms 600 KB Ok! 652 queries used.

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 600 KB Ok! 1411 queries used.
2 Correct 87 ms 604 KB Ok! 1618 queries used.
3 Correct 82 ms 600 KB Ok! 1606 queries used.
4 Correct 84 ms 604 KB Ok! 1514 queries used.

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 640 KB Ok! 1491 queries used.
2 Correct 77 ms 640 KB Ok! 1470 queries used.
3 Correct 88 ms 652 KB Ok! 1607 queries used.
4 Correct 78 ms 600 KB Ok! 1501 queries used.

Subtask #5
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 652 KB Ok! 1589 queries used.
2 Correct 83 ms 600 KB Ok! 1603 queries used.
3 Correct 86 ms 604 KB Ok! 1631 queries used.
4 Correct 83 ms 628 KB Ok! 1606 queries used.
5 Correct 81 ms 1108 KB Ok! 1468 queries used.
6 Correct 81 ms 604 KB Ok! 1543 queries used.

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 604 KB Ok! 1608 queries used.
2 Correct 100 ms 604 KB Ok! 1622 queries used.