結果
問題 | No.2496 LCM between Permutations |
ユーザー |
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提出日時 | 2024-01-25 00:46:42 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 121 ms / 2,000 ms |
コード長 | 3,977 bytes |
コンパイル時間 | 2,807 ms |
コンパイル使用メモリ | 206,252 KB |
実行使用メモリ | 25,460 KB |
平均クエリ数 | 953.86 |
最終ジャッジ日時 | 2024-09-28 07:13:17 |
合計ジャッジ時間 | 5,722 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 28 |
ソースコード
#pragma GCC optimize("O2")#include <algorithm>#include <array>#include <bit>#include <bitset>#include <cassert>#include <cctype>#include <cfenv>#include <cfloat>#include <chrono>#include <cinttypes>#include <climits>#include <cmath>#include <compare>#include <complex>#include <concepts>#include <cstdarg>#include <cstddef>#include <cstdint>#include <cstdio>#include <cstdlib>#include <cstring>#include <deque>#include <fstream>#include <functional>#include <initializer_list>#include <iomanip>#include <ios>#include <iostream>#include <istream>#include <iterator>#include <limits>#include <list>#include <map>#include <memory>#include <new>#include <numbers>#include <numeric>#include <ostream>#include <queue>#include <random>#include <ranges>#include <set>#include <span>#include <sstream>#include <stack>#include <streambuf>#include <string>#include <tuple>#include <type_traits>#include <variant>#define int ll#define INT128_MAX (__int128)(((unsigned __int128) 1 << ((sizeof(__int128) * __CHAR_BIT__) - 1)) - 1)#define INT128_MIN (-INT128_MAX - 1)#define clock chrono::steady_clock::now().time_since_epoch().count()#ifdef DEBUG#define dbg(x) cout << (#x) << " = " << x << '\n'#else#define dbg(x)#endifnamespace R = std::ranges;namespace V = std::views;using namespace std;using ll = long long;using ull = unsigned long long;using ldb = long double;using pii = pair<int, int>;using pll = pair<ll, ll>;//#define double ldbtemplate<class T>ostream& operator<<(ostream& os, const pair<T, T> pr) {return os << pr.first << ' ' << pr.second;}template<class T, size_t N>ostream& operator<<(ostream& os, const array<T, N> &arr) {for(const T &X : arr)os << X << ' ';return os;}template<class T>ostream& operator<<(ostream& os, const vector<T> &vec) {for(const T &X : vec)os << X << ' ';return os;}template<class T>ostream& operator<<(ostream& os, const set<T> &s) {for(const T &x : s)os << x << ' ';return os;}bool swp = false;int query(int i, int j) {if (swp)cout << "? " << j + 1 << ' ' << i + 1 << '\n';elsecout << "? " << i + 1 << ' ' << j + 1 << '\n';int x; cin >> x;return x;}void answer(vector<int> a, vector<int> b) {if (swp)cout << "! " << b << ' ' << a << '\n';elsecout << "! " << a << ' ' << b << '\n';}bool prime[1001];signed main() {//ios::sync_with_stdio(false), cin.tie(NULL);fill(prime + 2, prime + 1001, true);for(int i = 4; i < 1001; i++)for(int j = 2; j < i; j++)if (i % j == 0)prime[i] = false;/*for(int n = 2; n <= 1000; n++) {bool ok = false;for(int i = (n + 1) / 2 + 1; i <= n; i++)ok = ok or prime[i];if (!ok)cout << n << " not ok\n";}*/int n; cin >> n;if (n == 1) {vector<int> a(1, 1);answer(a, a);return 0;}int p = -1, ppos = -1;{vector<int> s(n);for(int i = 0; i < n; i++)s[i] = query(0, i);int mn = R::min(s);for(int i = 0; i < n; i++)if (prime[s[i] / mn] and s[i] / mn >= (n + 1) / 2 + 1)p = s[i] / mn, ppos = i;if (p == -1)swp = true, p = mn, ppos = 0;}dbg(p);dbg(ppos);vector<int> a(n, -1), b(n, -1);array<int, 2> cand = {-1, -1};{vector<int> s(n);for(int i = 0; i < n; i++)s[i] = query(i, ppos);for(int i = 0; i < n; i++) {if (s[i] == p)cand[cand[0] != -1] = i;elsea[i] = s[i] / p;}}dbg(a);dbg(b);dbg(cand);{vector<int> s(n);for(int i = 0; i < n; i++)s[i] = query(cand[0], i);int mn = R::min(s);if (mn == 1) {a[cand[0]] = 1, a[cand[1]] = p;b = s;} else {a[cand[0]] = p, a[cand[1]] = 1;for(int i = 0; i < n; i++) {if (s[i] == p)b[i] = (i == ppos ? p : 1);elseb[i] = s[i] / p;}}}answer(a, b);return 0;}