oj.uz

답안 #203446

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
203446 2020-02-20T16:52:33 Z kostia244 CEOI16_icc (CEOI16_icc) C++17
18 / 100
 493 ms 632 KB 
#define _GLIBCXX_DEBUG
#ifndef kostia
#include"icc.h"
#endif
#include<bits/stdc++.h>
#define pb push_back
#define all(x) x.begin(), x.end()
using namespace std;
using ll = long long;
using vi = vector<ll>;
using pi = pair<int, int>;
using vpi = vector<pi>;
#ifdef kostia
vpi local_roads;
int local_cur = 0, local_n;
int query(int sa, int sb, int a[], int b[]) {
	cout << sa << " " << sb << " :: ";
	for(int i = 0; i < sa; i++) cout << a[i] << " "; cout << " - ";
	for(int i = 0; i < sb; i++) cout << b[i] << " "; cout << "\n";
	for(int i = 0; i < sa; i++) {
		for(int j = 0; j < sb; j++) {
			for(auto k : local_roads) {
				if(a[i]==k.first && b[j]==k.second)
					return 1;
				if(a[i]==k.second && b[j]==k.first)
					return 1;
			}
		}
	}
	return 0;
}
void setRoad(int a, int b) {
	if(pi{a, b}!=local_roads.back()&&pi{b, a}!=local_roads.back()) {
		cout << a << " " << b << "\n";
		cout << "BAD";
		exit(0);
	}
	cout << "road " << local_roads.back().first << " " << local_roads.back().second << " guessed.\n";
	if(++local_cur==local_n) exit(0);
	cin >> a >> b;
	local_roads.pb({a, b});
}
#endif
const int maxn = 1e2 + 21;
struct dsu {
	vi r, p;
	void init(int n) {
		r.resize(n+1);
		p.resize(n+1);
		for(int i = 1; i <= n; i++) {
			r[i] = 1, p[i] = i;
		}
	}
	int par(int i) {
		if(i==p[i]) return i;
		return p[i] = par(p[i]);
	}
	void unite(int i, int j) {
		i = par(i), j = par(j);
		if(i==j) return;
		if(r[i] < r[j]) swap(i, j);
		p[j] = i;
		r[i] += r[i] == r[j];
	}
	bool con(int i, int j) {
		return par(i) == par(j);
	}
};
int n;
int a[maxn], b[maxn];
dsu d;
int q(vi x, vi y) {
	if(x.empty()||y.empty()) return 0;
	for(int i = 0; i < x.size(); i++) a[i] = x[i];
	for(int i = 0; i < y.size(); i++) b[i] = y[i];
	return query(x.size(), y.size(), a, b);
}
void run(int _n) {
	n = _n;
	d.init(n);
	for(int p = 1; p < n; p++) {
		int x = -1, y = -1;
		for(int i = 1; i <= n; i++) {
			vi t;
			for(int j = 1; j <= n; j++) {
				if(!d.con(i, j))
				t.pb(j);
			}
			if(!q(vi{i}, t)) continue;
			if(x==-1) x = i;
			else if(y==-1) y = i;
			else exit(255);
		}
		setRoad(x, y);
		d.unite(x, y);
	}
}

#ifdef kostia
int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout << "kostia:\n";
	int x, y;
	cin >> local_n >> x >> y;
	local_roads.pb({x, y});
	local_cur = 1;
	run(local_n);
	return 0;
}
#endif

Compilation message

icc.cpp: In function 'int q(vi, vi)':
icc.cpp:74:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < x.size(); i++) a[i] = x[i];
                 ~~^~~~~~~~~~
icc.cpp:75:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < y.size(); i++) b[i] = y[i];
                 ~~^~~~~~~~~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 504 KB Ok! 210 queries used.
2 Correct 19 ms 504 KB Ok! 210 queries used.

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 195 ms 504 KB Ok! 2450 queries used.
2 Correct 205 ms 632 KB Ok! 2450 queries used.
3 Correct 195 ms 504 KB Ok! 2450 queries used.

Subtask #3
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 493 ms 560 KB Number of queries more than 4500 out of 2250
2 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 443 ms 632 KB Number of queries more than 4000 out of 2000
2 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 399 ms 504 KB Number of queries more than 3550 out of 1775
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 364 ms 632 KB Number of queries more than 3250 out of 1625
2 Halted 0 ms 0 KB -