Submission #709984

#	Time	Username	Problem	Language	Result	Execution time	Memory
709984		SanguineChameleon	Carnival (CEOI14_carnival)	C++17	0 / 100	9 ms	208 KiB

carnival

// BEGIN BOILERPLATE CODE

#include <bits/stdc++.h>
using namespace std;

#ifdef KAMIRULEZ
	const bool kami_loc = true;
	const long long kami_seed = 69420;
#else
	const bool kami_loc = false;
	const long long kami_seed = chrono::steady_clock::now().time_since_epoch().count();
#endif

const string kami_fi = "kamirulez.inp";
const string kami_fo = "kamirulez.out";
mt19937_64 kami_gen(kami_seed);

long long rand_range(long long rmin, long long rmax) {
	uniform_int_distribution<long long> rdist(rmin, rmax);
	return rdist(kami_gen);
}

long double rand_real(long double rmin, long double rmax) {
	uniform_real_distribution<long double> rdist(rmin, rmax);
	return rdist(kami_gen);
}

void file_io(string fi, string fo) {
	if (fi != "" && (!kami_loc || fi == kami_fi)) {
		freopen(fi.c_str(), "r", stdin);
	}
	if (fo != "" && (!kami_loc || fo == kami_fo)) {
		freopen(fo.c_str(), "w", stdout);
	}
}

void set_up() {
	if (kami_loc) {
		file_io(kami_fi, kami_fo);
	}
	ios_base::sync_with_stdio(0);
	cin.tie(0);
}

void just_do_it();

void just_exec_it() {
	if (kami_loc) {
		auto pstart = chrono::steady_clock::now();
		just_do_it();
		auto pend = chrono::steady_clock::now();
		long long ptime = chrono::duration_cast<chrono::milliseconds>(pend - pstart).count();
		string bar(50, '=');
		cout << '\n' << bar << '\n';
		cout << "Time: " << ptime << " ms" << '\n';
	}
	else {
		just_do_it();
	}
}

int main() {
	set_up();
	just_exec_it();
	return 0;
}

// END BOILERPLATE CODE

// BEGIN MAIN CODE

int res[170];

int query(vector<int> q) {
	cout << q.size();
	for (auto x: q) {
		cout << " " << x;
	}
	cout << endl;
	int res;
	cin >> res;
	return res;
}

void solve(int pos, vector<int> q) {
	int sz = q.size();
	assert(sz > 0);
	if (sz == 1) {
		res[pos] = q[0];
		return;
	}
	vector<int> lv(q.begin(), q.begin() + sz / 2);
	vector<int> rv(q.begin() + sz / 2, q.end());
	q = lv;
	q.push_back(pos);
	if (query(q) == (int)lv.size()) {
		solve(pos, lv);
	}
	else {
		solve(pos, rv);
	}
}

void just_do_it() {
	int n;
	cin >> n;
	vector<int> cur;
	for (int i = 1; i <= n; i++) {
		vector<int> q = cur;
		q.push_back(i);
		if (query(q) == (int)cur.size() + 1) {
			res[i] = cur.size() + 1;
			cur.push_back(i);
		}
		else {
			solve(i, cur);
		}
	}
	cout << 0;
	for (int i = 1; i <= n; i++) {
		cout << " " << res[i];
	}
	cout << endl;
}

// END MAIN CODE

Compilation message (stderr)

carnival.cpp: In function 'void file_io(std::string, std::string)':
carnival.cpp:30:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |   freopen(fi.c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
carnival.cpp:33:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |   freopen(fo.c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20