結果
問題 | No.2890 Chiffon |
ユーザー | fuppy_kyopro |
提出日時 | 2024-09-13 22:27:01 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,445 bytes |
コンパイル時間 | 2,303 ms |
コンパイル使用メモリ | 207,616 KB |
実行使用メモリ | 11,020 KB |
最終ジャッジ日時 | 2024-09-13 22:27:08 |
合計ジャッジ時間 | 4,882 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | WA | - |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,812 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | WA | - |
testcase_14 | AC | 2 ms
6,940 KB |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | AC | 2 ms
6,944 KB |
testcase_22 | AC | 96 ms
11,020 KB |
testcase_23 | AC | 4 ms
6,940 KB |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | AC | 6 ms
6,944 KB |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | AC | 5 ms
6,940 KB |
testcase_31 | WA | - |
testcase_32 | AC | 2 ms
6,940 KB |
testcase_33 | AC | 69 ms
10,032 KB |
testcase_34 | AC | 27 ms
7,540 KB |
testcase_35 | AC | 27 ms
7,544 KB |
testcase_36 | AC | 26 ms
7,544 KB |
testcase_37 | AC | 27 ms
7,544 KB |
testcase_38 | AC | 27 ms
7,544 KB |
testcase_39 | AC | 62 ms
9,908 KB |
testcase_40 | AC | 27 ms
7,420 KB |
testcase_41 | AC | 68 ms
9,912 KB |
testcase_42 | AC | 62 ms
10,164 KB |
testcase_43 | AC | 27 ms
7,544 KB |
testcase_44 | AC | 28 ms
7,548 KB |
testcase_45 | AC | 28 ms
7,416 KB |
testcase_46 | AC | 27 ms
7,420 KB |
testcase_47 | AC | 28 ms
7,544 KB |
testcase_48 | AC | 49 ms
8,608 KB |
testcase_49 | AC | 50 ms
8,488 KB |
testcase_50 | AC | 49 ms
8,484 KB |
testcase_51 | AC | 50 ms
8,488 KB |
testcase_52 | AC | 50 ms
8,488 KB |
testcase_53 | WA | - |
testcase_54 | AC | 19 ms
6,940 KB |
ソースコード
/* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") //*/ // #include <atcoder/all> #include <bits/stdc++.h> using namespace std; // using namespace atcoder; // #define _GLIBCXX_DEBUG #define DEBUG(x) cerr << #x << ": " << x << endl; #define DEBUG_VEC(v) \ cerr << #v << ":"; \ for (int iiiiiiii = 0; iiiiiiii < v.size(); iiiiiiii++) \ cerr << " " << v[iiiiiiii]; \ cerr << endl; #define DEBUG_MAT(v) \ cerr << #v << endl; \ for (int iv = 0; iv < v.size(); iv++) { \ for (int jv = 0; jv < v[iv].size(); jv++) { \ cerr << v[iv][jv] << " "; \ } \ cerr << endl; \ } typedef long long ll; // #define int ll #define vi vector<int> #define vl vector<ll> #define vii vector<vector<int>> #define vll vector<vector<ll>> #define pii pair<int, int> #define pis pair<int, string> #define psi pair<string, int> #define pll pair<ll, ll> template <class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); } template <class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); } template <class S, class T> ostream &operator<<(ostream &os, pair<S, T> p) { os << "(" << p.first << ", " << p.second << ")"; return os; } #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define rep1(i, n) for (int i = 1; i <= (int)(n); i++) #define rrep(i, n) for (int i = (int)(n) - 1; i >= 0; i--) #define rrep1(i, n) for (int i = (int)(n); i > 0; i--) #define REP(i, a, b) for (int i = a; i < b; i++) #define in(x, a, b) (a <= x && x < b) #define all(c) c.begin(), c.end() void YES(bool t = true) { cout << (t ? "YES" : "NO") << endl; } void Yes(bool t = true) { cout << (t ? "Yes" : "No") << endl; } void yes(bool t = true) { cout << (t ? "yes" : "no") << endl; } void NO(bool t = true) { cout << (t ? "NO" : "YES") << endl; } void No(bool t = true) { cout << (t ? "No" : "Yes") << endl; } void no(bool t = true) { cout << (t ? "no" : "yes") << endl; } template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (a > b) { a = b; return 1; } return 0; } template <class T, class U> T ceil_div(T a, U b) { return (a + b - 1) / b; } template <class T> T safe_mul(T a, T b) { if (a == 0 || b == 0) return 0; if (numeric_limits<T>::max() / a < b) return numeric_limits<T>::max(); return a * b; } #define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end()); const ll inf = 1000000001; const ll INF = (ll)1e18 + 1; const long double pi = 3.1415926535897932384626433832795028841971L; int popcount(ll t) { return __builtin_popcountll(t); } vector<int> gen_perm(int n) { vector<int> ret(n); iota(all(ret), 0); return ret; } // int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; // int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 }; vi dx = {0, 0, -1, 1}, dy = {-1, 1, 0, 0}; vi dx2 = {1, 1, 0, -1, -1, -1, 0, 1}, dy2 = {0, 1, 1, 1, 0, -1, -1, -1}; struct Setup_io { Setup_io() { ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0); cout << fixed << setprecision(25); cerr << fixed << setprecision(25); } } setup_io; // constexpr ll MOD = 1000000007; constexpr ll MOD = 998244353; // #define mp make_pair bool f(int x, int n, int k, vi a) { assert(x % 2 == 0); vi ini; for (int i = 0; i < a[0]; i += 2) { ini.push_back(i); } vi pos(k); int now = ini[0]; pos[0] = now; rep(i, k - 1) { int next_kugiri = now + x; if (next_kugiri <= a[i]) { next_kugiri = a[i] + 1; } if (next_kugiri >= a[i + 1]) { return false; } now = next_kugiri; pos[i + 1] = now; } if (pos[0] + n - pos.back() >= x) { return true; } for (int st = 1; st < ini.size(); st++) { int now = ini[st]; pos[0] = now; rep(i, k - 1) { int next_kugiri = now + x; if (next_kugiri <= a[i]) { next_kugiri = a[i] + 1; } if (next_kugiri >= a[i + 1]) { return false; } now = next_kugiri; if (pos[i + 1] == now) { break; } pos[i + 1] = now; } if (pos[0] + n - pos.back() >= x) { return true; } } return false; } signed main() { int n, k; cin >> n >> k; n *= 2; vi a(k); rep(i, k) { cin >> a[i]; a[i]--; } int add = n - 1 - a.back(); rep(i, k) { a[i] += add; } // DEBUG_VEC(a); vi evens; for (int i = 2; i < n; i += 2) { evens.push_back(i); } int ok = 0, ng = evens.size(); while (ok + 2 < ng) { int mid = (ok + ng) / 2; if (f(evens[mid], n, k, a)) { ok = mid; } else { ng = mid; } } cout << evens[ok] << endl; }