結果
問題 | No.1465 Archaea |
ユーザー | scol_kp |
提出日時 | 2021-04-02 22:32:13 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 27 ms / 2,000 ms |
コード長 | 3,827 bytes |
コンパイル時間 | 2,087 ms |
コンパイル使用メモリ | 210,112 KB |
実行使用メモリ | 15,028 KB |
最終ジャッジ日時 | 2024-06-06 10:34:38 |
合計ジャッジ時間 | 2,954 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 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 | 1 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 7 ms
6,144 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 10 ms
7,680 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 8 ms
6,912 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 22 ms
12,032 KB |
testcase_14 | AC | 9 ms
7,040 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 22 ms
12,540 KB |
testcase_18 | AC | 3 ms
5,376 KB |
testcase_19 | AC | 9 ms
7,296 KB |
testcase_20 | AC | 15 ms
10,240 KB |
testcase_21 | AC | 27 ms
15,028 KB |
testcase_22 | AC | 27 ms
15,016 KB |
testcase_23 | AC | 2 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> #define FASTIO using namespace std; using ll = long long; using Vi = std::vector<int>; using Vl = std::vector<ll>; using Pii = std::pair<int, int>; using Pll = std::pair<ll, ll>; constexpr int I_INF = std::numeric_limits<int>::max(); constexpr ll L_INF = std::numeric_limits<ll>::max(); template <typename T1, typename T2> inline bool chmin(T1& a, const T2& b) { if (a > b) { a = b; return true; } return false; } template <typename T1, typename T2> inline bool chmax(T1& a, const T2& b) { if (a < b) { a = b; return true; } return false; } template <std::ostream& os = std::cout> class Prints { private: class __Prints { public: __Prints(const char* sep, const char* term) : sep(sep), term(term) {} template <class... Args> #if __cplusplus >= 201703L auto operator()(const Args&... args) const -> decltype((os << ... << std::declval<Args>()), void()) { #else void operator()(const Args&... args) const { #endif print(args...); } template <typename T> #if __cplusplus >= 201703L auto pvec(const T& vec, size_t sz) const -> decltype(os << std::declval<decltype(std::declval<T>()[0])>(), void()) { #else void pvec(const T& vec, size_t sz) const { #endif for (size_t i = 0; i < sz; i++) os << vec[i] << (i == sz - 1 ? term : sep); } template <typename T> #if __cplusplus >= 201703L auto pmat(const T& mat, size_t h, size_t w) const -> decltype(os << std::declval<decltype(std::declval<T>()[0][0])>(), void()) { #else void pmat(const T& mat, size_t h, size_t w) const { #endif for (size_t i = 0; i < h; i++) for (size_t j = 0; j < w; j++) os << mat[i][j] << (j == w - 1 ? term : sep); } private: const char *sep, *term; void print() const { os << term; } void print_rest() const { os << term; } template <class T, class... Tail> void print(const T& head, const Tail&... tail) const { os << head, print_rest(tail...); } template <class T, class... Tail> void print_rest(const T& head, const Tail&... tail) const { os << sep << head, print_rest(tail...); } }; public: Prints() {} __Prints operator()(const char* sep = " ", const char* term = "\n") const { return __Prints(sep, term); } }; Prints<> prints; Prints<std::cerr> prints_err; //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% void solve() { int N, K; cin >> N >> K; using Graph = std::vector<std::vector<int>>; Graph g(N + 1); for (ll i = 1; i <= N; i++) { if (int t = i * 2; t <= N) { g[i].emplace_back(t); } if (int t = i + 3; t <= N) { g[i].emplace_back(t); } } Vi dist(N + 1, I_INF); queue<int> que; que.emplace(1); dist[1] = 0; while (!que.empty()) { auto x = que.front(); que.pop(); for (auto to : g[x]) { if (dist[to] == I_INF) { dist[to] = dist[x] + 1; que.emplace(to); } } } if (dist[N] <= K) { prints()("YES"); } else { prints()("NO"); } } //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% int main() { #ifdef FASTIO std::cin.tie(nullptr), std::cout.tie(nullptr); std::ios::sync_with_stdio(false); #endif #ifdef FILEINPUT std::ifstream ifs("./in_out/input.txt"); std::cin.rdbuf(ifs.rdbuf()); #endif #ifdef FILEOUTPUT std::ofstream ofs("./in_out/output.txt"); std::cout.rdbuf(ofs.rdbuf()); #endif std::cout << std::setprecision(18) << std::fixed; solve(); std::cout << std::flush; return 0; }