Submission #203442

#	Time	Username	Problem	Language	Result	Execution time	Memory
203442		kostia244	ICC (CEOI16_icc)	C++17	0 / 100	329 ms	1016 KiB

icc

#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;
int n;
int a[maxn], b[maxn];
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);
}
vi unc[maxn];
void erase(vi& a, int x) {
	for(int i = 0; i < a.size(); i++) {
		if(a[i]==x) {
			swap(a[i], a.back());
			a.pop_back();
			return;
		}
	}
	cout << "BADd";
	exit(-1);
}
void run(int _n) {
	n = _n;
	for(int i = 1; i <= n; i++)
		for(int j = 1; j <= n; j++)
			if(i!=j)
				unc[i].pb(j);
	for(int edge = 1; edge < n; edge++) {
		int x = -1, y = -1;
		for(int i = 1; y == -1 && i <= n; i++) {
			if(q(vi{i}, unc[i])) {
				if(x==-1) x = i;
				else y = i;
			}
		}
		assert(q(vi{x}, vi{y}));
		setRoad(x, y);
		erase(unc[x], y);
		erase(unc[y], x);
	}
}

#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 (stderr)

icc.cpp: In function 'int q(vi, vi)':
icc.cpp:48:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < x.size(); i++) a[i] = x[i];
                 ~~^~~~~~~~~~
icc.cpp:49:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < y.size(); i++) b[i] = y[i];
                 ~~^~~~~~~~~~
icc.cpp: In function 'void erase(vi&, int)':
icc.cpp:54:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < a.size(); i++) {
                 ~~^~~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 21
• Subtask 5: 0 / 29
• Subtask 6: 0 / 10