結果
問題 | No.2890 Chiffon |
ユーザー | tonegawa |
提出日時 | 2024-09-13 22:21:50 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,354 bytes |
コンパイル時間 | 1,641 ms |
コンパイル使用メモリ | 143,708 KB |
実行使用メモリ | 110,844 KB |
最終ジャッジ日時 | 2024-09-13 22:22:16 |
合計ジャッジ時間 | 25,203 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
(要ログイン)
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 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | WA | - |
testcase_23 | AC | 455 ms
58,528 KB |
testcase_24 | AC | 398 ms
46,828 KB |
testcase_25 | AC | 692 ms
89,048 KB |
testcase_26 | AC | 821 ms
94,336 KB |
testcase_27 | AC | 29 ms
7,168 KB |
testcase_28 | AC | 72 ms
12,800 KB |
testcase_29 | AC | 389 ms
51,456 KB |
testcase_30 | AC | 870 ms
101,436 KB |
testcase_31 | AC | 758 ms
88,832 KB |
testcase_32 | AC | 40 ms
8,704 KB |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | WA | - |
testcase_44 | WA | - |
testcase_45 | WA | - |
testcase_46 | WA | - |
testcase_47 | WA | - |
testcase_48 | WA | - |
testcase_49 | WA | - |
testcase_50 | WA | - |
testcase_51 | WA | - |
testcase_52 | WA | - |
testcase_53 | AC | 825 ms
104,732 KB |
testcase_54 | WA | - |
ソースコード
#include <iostream> #include <string> #include <vector> #include <array> #include <tuple> #include <stack> #include <queue> #include <deque> #include <algorithm> #include <set> #include <map> #include <unordered_set> #include <unordered_map> #include <bitset> #include <cmath> #include <functional> #include <cassert> #include <climits> #include <iomanip> #include <numeric> #include <memory> #include <random> #include <thread> #include <chrono> #define allof(obj) (obj).begin(), (obj).end() #define range(i, l, r) for(int i=l;i<r;i++) #define unique_elem(obj) obj.erase(std::unique(allof(obj)), obj.end()) #define bit_subset(i, S) for(int i=S, zero_cnt=0;(zero_cnt+=i==S)<2;i=(i-1)&S) #define bit_kpop(i, n, k) for(int i=(1<<k)-1,x_bit,y_bit;i<(1<<n);x_bit=(i&-i),y_bit=i+x_bit,i=(!i?(1<<n):((i&~y_bit)/x_bit>>1)|y_bit)) #define bit_kth(i, k) ((i >> k)&1) #define bit_highest(i) (i?63-__builtin_clzll(i):-1) #define bit_lowest(i) (i?__builtin_ctzll(i):-1) #define sleepms(t) std::this_thread::sleep_for(std::chrono::milliseconds(t)) using ll = long long; using ld = long double; using ul = uint64_t; using pi = std::pair<int, int>; using pl = std::pair<ll, ll>; using namespace std; template<typename F, typename S> std::ostream &operator << (std::ostream &dest, const std::pair<F, S> &p) { dest << p.first << ' ' << p.second; return dest; } template<typename A, typename B> std::ostream &operator << (std::ostream &dest, const std::tuple<A, B> &t) { dest << std::get<0>(t) << ' ' << std::get<1>(t); return dest; } template<typename A, typename B, typename C> std::ostream &operator << (std::ostream &dest, const std::tuple<A, B, C> &t) { dest << std::get<0>(t) << ' ' << std::get<1>(t) << ' ' << std::get<2>(t); return dest; } template<typename A, typename B, typename C, typename D> std::ostream &operator << (std::ostream &dest, const std::tuple<A, B, C, D> &t) { dest << std::get<0>(t) << ' ' << std::get<1>(t) << ' ' << std::get<2>(t) << ' ' << std::get<3>(t); return dest; } template<typename T> std::ostream &operator << (std::ostream &dest, const std::vector<std::vector<T>> &v) { int sz = v.size(); if (!sz) return dest; for (int i = 0; i < sz; i++) { int m = v[i].size(); for (int j = 0; j < m; j++) dest << v[i][j] << (i != sz - 1 && j == m - 1 ? '\n' : ' '); } return dest; } template<typename T> std::ostream &operator << (std::ostream &dest, const std::vector<T> &v) { int sz = v.size(); if (!sz) return dest; for (int i = 0; i < sz - 1; i++) dest << v[i] << ' '; dest << v[sz - 1]; return dest; } template<typename T, size_t sz> std::ostream &operator << (std::ostream &dest, const std::array<T, sz> &v) { if (!sz) return dest; for (int i = 0; i < sz - 1; i++) dest << v[i] << ' '; dest << v[sz - 1]; return dest; } template<typename T> std::ostream &operator << (std::ostream &dest, const std::set<T> &v) { for (auto itr = v.begin(); itr != v.end();) { dest << *itr; itr++; if (itr != v.end()) dest << ' '; } return dest; } template<typename T, typename E> std::ostream &operator << (std::ostream &dest, const std::map<T, E> &v) { for (auto itr = v.begin(); itr != v.end(); ) { dest << '(' << itr->first << ", " << itr->second << ')'; itr++; if (itr != v.end()) dest << '\n'; } return dest; } template<typename T> vector<T> make_vec(size_t sz, T val) { return std::vector<T>(sz, val); } template<typename T, typename... Tail> auto make_vec(size_t sz, Tail ...tail) { return std::vector<decltype(make_vec<T>(tail...))>(sz, make_vec<T>(tail...)); } template<typename T> vector<T> read_vec(size_t sz) { std::vector<T> v(sz); for (int i = 0; i < (int)sz; i++) std::cin >> v[i]; return v; } template<typename T, typename... Tail> auto read_vec(size_t sz, Tail ...tail) { auto v = std::vector<decltype(read_vec<T>(tail...))>(sz); for (int i = 0; i < (int)sz; i++) v[i] = read_vec<T>(tail...); return v; } // x / y以上の最小の整数 ll ceil_div(ll x, ll y) { assert(y > 0); return (x + (x > 0 ? y - 1 : 0)) / y; } // x / y以下の最大の整数 ll floor_div(ll x, ll y) { assert(y > 0); return (x + (x > 0 ? 0 : -y + 1)) / y; } void io_init() { std::cin.tie(nullptr); std::ios::sync_with_stdio(false); } int main() { io_init(); int N, K; std::cin >> N >> K; auto A = read_vec<int>(K); std::vector<int> accum(4 * N, 0); std::vector<int> pos; for (int i = 0; i < K; i++) pos.push_back(A[i]); for (int i = 0; i < K; i++) pos.push_back(A[i] + 2 * N); for (int p : pos) accum[p]++; for (int i = 1; i < 4 * N; i++) accum[i] += accum[i - 1]; std::vector<ll> npos(4 * N, 4 * N); for (int p : pos) npos[p] = p; for (int i = 4 * N - 2; i >= 0; i--) { if (npos[i] == 4 * N) { npos[i] = npos[i + 1]; } } std::array<std::vector<ll>, 20> next; for (int i = 0; i < 20; i++) next[i].resize(N); ll L = 1, R = N + 1; while (R - L > 1) { ll M = (L + R) / 2; for (int i = 0; i < N; i++) { int l = i * 2; int r = std::max(npos[l] + 1, l + 2 * M); int rcnt = accum[r]; int lcnt = (l ? accum[l - 1] : 0); if (rcnt - lcnt != 1) { next[0][i] = 2 * N; } else { next[0][i] = (r - l) / 2; } } for (int i = 1; i < 20; i++) { for (int j = 0; j < N; j++) { int d1 = next[i - 1][j]; next[i][j] = d1 + next[i - 1][(j + d1) % N]; } } bool ok = false; for (int l = 0; l < N; l++) { int x = K; ll d = 0; int p = l; bool f = true; for (int i = 19; i >= 0; i--) { if ((x >> i) & 1) { d += next[i][p]; p = (p + next[i][p]) % N; x -= 1 << i; } if (d > N) { f = false; break; } } if (f) { ok = true; break; } } if (ok) L = M; else R = M; } std::cout << 2 * L << '\n'; }