結果

問題 No.3211 NAND Oracle
ユーザー 遭難者
提出日時 2025-07-25 22:12:54
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 8 ms / 2,000 ms
コード長 5,496 bytes
コンパイル時間 5,432 ms
コンパイル使用メモリ 337,384 KB
実行使用メモリ 7,716 KB
最終ジャッジ日時 2025-07-25 22:13:04
合計ジャッジ時間 8,827 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge2
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 28
権限があれば一括ダウンロードができます

ソースコード

diff # 

#include <bits/stdc++.h>
using namespace std;
using std::cerr;
using std::cin;
using std::cout;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using mint = atcoder::modint998244353;
istream &operator>>(istream &is, mint &a) {
	long long t;
	is >> t;
	a = t;
	return is;
}
ostream &operator<<(ostream &os, mint a) { return os << a.val(); }
#endif
typedef long double ld;
#define long long long
#define uint unsigned int
#define ull unsigned long
#define overload3(a, b, c, name, ...) name
#define rep3(i, a, b) for (int i = (a); i < (b); i++)
#define rep2(i, n) rep3(i, 0, n)
#define rep1(n) rep2(__i, n)
#define rep(...) overload3(__VA_ARGS__, rep3, rep2, rep1)(__VA_ARGS__)
#define per3(i, a, b) for (int i = (b) - 1; i >= (a); i--)
#define per2(i, n) per3(i, 0, n)
#define per1(n) per2(__i, n)
#define per(...) overload3(__VA_ARGS__, per3, per2, per1)(__VA_ARGS__)
#define all(a) a.begin(), a.end()
#define UNIQUE(a)                                                              \
	sort(all(a));                                                              \
	a.erase(unique(all(a)), a.end())
#define sz(a) (int)a.size()
#define vec vector
#ifndef DEBUG
#define cerr                                                                   \
	if (0)                                                                     \
	cerr
// #undef assert
// #define assert(...) void(0)
#undef endl
#define endl '\n'
#endif
template <typename T> ostream &operator<<(ostream &os, vector<T> a) {
	const int n = a.size();
	rep(i, n) {
		os << a[i];
		if (i + 1 != n)
			os << " ";
	}
	return os;
}
template <typename T, size_t n>
ostream &operator<<(ostream &os, array<T, n> a) {
	rep(i, n) {
		os << a[i];
		if (i + 1 != n)
			os << " ";
	}
	return os;
}
template <typename T> istream &operator>>(istream &is, vector<T> &a) {
	for (T &i : a)
		is >> i;
	return is;
}
template <typename T, typename S> bool chmin(T &x, S y) {
	if ((T)y < x) {
		x = (T)y;
		return true;
	}
	return false;
}
template <typename T, typename S> bool chmax(T &x, S y) {
	if (x < (T)y) {
		x = (T)y;
		return true;
	}
	return false;
}
template <typename T> void operator++(vector<T> &a) {
	for (T &i : a)
		++i;
}
template <typename T> void operator--(vector<T> &a) {
	for (T &i : a)
		--i;
}
template <typename T> void operator++(vector<T> &a, int) {
	for (T &i : a)
		i++;
}
template <typename T> void operator--(vector<T> &a, int) {
	for (T &i : a)
		i--;
}
struct S {
	vec<int> a, b, c, d;
	vec<pair<int, int>> so;
	int calc() {
		int ans = 0;
		{
			int c = 0;
			for (int i : a)
				c += i;
			chmax(ans, c);
		}
		{
			int c = 0;
			for (int i : b)
				c += i;
			chmax(ans, c);
		}
		{
			int cc = 0;
			for (int i : c)
				cc += i;
			chmax(ans, cc);
		}
		{
			int c = 0;
			for (int i : d)
				c += i;
			chmax(ans, c);
		}
		return ans;
	}
	void ap(int i, int j) {
		a.push_back(1 - (a[i] & a[j]));
		b.push_back(1 - (b[i] & b[j]));
		c.push_back(1 - (c[i] & c[j]));
		d.push_back(1 - (d[i] & d[j]));
		so.emplace_back(i, j);
	}
};
void gu() {
	vec<S> s;
	{
		vec<int> a = {0, 0};
		vec<int> b = {0, 1};
		vec<int> c = {1, 0};
		vec<int> d = {1, 1};
		S x = {a, b, c, d};
		s = {x};
	}
	for (int n = 2; n < 10; n++) {
		vec<S> ss;
		rep(i, n) rep(j, i) {
			for (S v : s) {
				v.ap(j, i);
				ss.push_back(v);
			}
		}
		swap(s, ss);
		int ans = n + 5;
		for (S v : s)
			chmin(ans, v.calc());
		cout << n + 1 << " : " << ans << endl;
		for (S v : s)
			if (ans == v.calc()) {
				for (auto [i, j] : v.so) {
					cout << i + 1 << " " << j + 1 << endl;
				}
				break;
			}
	}
}
void solve() {
	// gu();
	int n, m;
	cin >> n >> m;
	n += 2;
	if (n == 3) {
		if (m < 2) {
			cout << "No" << endl;
			return;
		}
		cout << "Yes" << endl;
		cout << "1 2" << endl;
		return;
	}
	if (n == 4) {
		if (m < 3) {
			cout << "No" << endl;
			return;
		}
		cout << "Yes" << endl;
		cout << "1 2" << endl;
		cout << "1 2" << endl;
		return;
	}
	if (n == 5) {
		if (m < 3) {
			cout << "No" << endl;
			return;
		}
		cout << "Yes" << endl;
		cout << "1 2" << endl;
		cout << "2 3" << endl;
		cout << "1 4" << endl;
		return;
	}
	if (n == 6) {
		if (m < 4) {
			cout << "No" << endl;
			return;
		}
		cout << "Yes" << endl;
		cout << "1 2" << endl;
		cout << "2 3" << endl;
		cout << "1 3" << endl;
		cout << "1 2" << endl;
		return;
	}
	if (n == 7) {
		if (m < 4) {
			cout << "No" << endl;
			return;
		}
		cout << "Yes" << endl;
		cout << "1 2" << endl;
		cout << "1 2" << endl;
		cout << "3 4" << endl;
		cout << "3 4" << endl;
		cout << "1 2" << endl;
		return;
	}
	if (n == 8) {
		if (m < 5) {
			cout << "No" << endl;
			return;
		}
		cout << "Yes" << endl;
		cout << "1 2" << endl;
		cout << "1 2" << endl;
		cout << "3 4" << endl;
		cout << "3 4" << endl;
		cout << "1 2" << endl;
		cout << "1 2" << endl;
		return;
	}
	if (n == 9) {
		if (m < 5) {
			cout << "No" << endl;
			return;
		}
		cout << "Yes" << endl;
		cout << "1 2" << endl;
		cout << "1 2" << endl;
		cout << "3 4" << endl;
		cout << "3 4" << endl;
		cout << "3 4" << endl;
		cout << "1 2" << endl;
		cout << "1 2" << endl;
		return;
	}
	if (m < 5) {
		cout << "No" << endl;
		return;
	}
	cout << "Yes" << endl;
	cout << "1 2" << endl;
	cout << "1 2" << endl;
	cout << "3 4" << endl;
	cout << "4 5" << endl;
	cout << "4 5" << endl;
	rep(n - 7) cout << "6 7" << endl;
	return;
}
int main() {
	// srand((unsigned)time(NULL));
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	cout << fixed << setprecision(20);
	int t = 1;
	// cin >> t;
	while (t--)
		solve();
}
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