結果
問題 | No.2354 Poor Sight in Winter |
ユーザー | ___Johniel |
提出日時 | 2023-08-03 14:21:57 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 207 ms / 2,000 ms |
コード長 | 3,205 bytes |
コンパイル時間 | 2,411 ms |
コンパイル使用メモリ | 208,916 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-13 11:15:08 |
合計ジャッジ時間 | 4,955 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 188 ms
5,248 KB |
testcase_12 | AC | 187 ms
5,248 KB |
testcase_13 | AC | 207 ms
5,248 KB |
testcase_14 | AC | 198 ms
5,248 KB |
testcase_15 | AC | 193 ms
5,248 KB |
testcase_16 | AC | 198 ms
5,248 KB |
testcase_17 | AC | 198 ms
5,248 KB |
testcase_18 | AC | 65 ms
5,248 KB |
testcase_19 | AC | 128 ms
5,248 KB |
testcase_20 | AC | 78 ms
5,248 KB |
testcase_21 | AC | 7 ms
5,248 KB |
testcase_22 | AC | 38 ms
5,248 KB |
testcase_23 | AC | 40 ms
5,248 KB |
testcase_24 | AC | 113 ms
5,248 KB |
testcase_25 | AC | 27 ms
5,248 KB |
testcase_26 | AC | 19 ms
5,248 KB |
testcase_27 | AC | 3 ms
5,248 KB |
testcase_28 | AC | 5 ms
5,248 KB |
ソースコード
// github.com/Johniel/contests // yukicoder/2354/main.cpp #include <bits/stdc++.h> #define each(i, c) for (auto& i : c) #define unless(cond) if (!(cond)) // #define endl "\n" using namespace std; template<typename P, typename Q> ostream& operator << (ostream& os, pair<P, Q> p) { os << "(" << p.first << "," << p.second << ")"; return os; } template<typename P, typename Q> istream& operator >> (istream& is, pair<P, Q>& p) { is >> p.first >> p.second; return is; } template<typename T> ostream& operator << (ostream& os, vector<T> v) { os << "("; for (auto& i: v) os << i << ","; os << ")"; return os; } template<typename T> istream& operator >> (istream& is, vector<T>& v) { for (auto& i: v) is >> i; return is; } template<typename T> ostream& operator << (ostream& os, set<T> s) { os << "#{"; for (auto& i: s) os << i << ","; os << "}"; return os; } template<typename K, typename V> ostream& operator << (ostream& os, map<K, V> m) { os << "{"; for (auto& i: m) os << i << ","; os << "}"; return os; } template<typename E, size_t N> istream& operator >> (istream& is, array<E, N>& a) { for (auto& i: a) is >> i; return is; } template<typename E, size_t N> ostream& operator << (ostream& os, array<E, N>& a) { os << "[" << N << "]{"; for (auto& i: a) os << i << ","; os << "}"; return os; } template<typename T> inline T setmax(T& a, T b) { return a = std::max(a, b); } template<typename T> inline T setmin(T& a, T b) { return a = std::min(a, b); } __attribute__((constructor)) static void ___initio(void) { ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.setf(ios_base::fixed); cout.precision(15); return ; } using lli = long long int; using ull = unsigned long long; using str = string; template<typename T> using vec = vector<T>; constexpr array<int, 8> di({0, 1, -1, 0, 1, -1, 1, -1}); constexpr array<int, 8> dj({1, 0, 0, -1, 1, -1, -1, 1}); constexpr lli mod = 1e9 + 7; // constexpr lli mod = 998244353; int main(int argc, char *argv[]) { int n, k; while (cin >> n >> k) { vec<pair<int, int>> v(n + 2); cin >> v; n += 2; auto fn = [&] (const lli P) { const int src = 0; const int dst = 1; const int N = 500 + 10; const lli inf = 1LL << 60; static lli cost[N]; fill(cost, cost + N, inf); cost[src] = 0; priority_queue<pair<lli, int>> q; for (q.push(make_pair(0, src)); q.size(); ) { pair<lli, int> p = q.top(); q.pop(); const int curr = p.second; if (cost[curr] != abs(p.first)) continue; for (int next = 0; next < n; ++next) { if (next == curr) continue; lli d = abs(v[curr].first - v[next].first) + abs(v[curr].second - v[next].second); d = (d + P - 1) / P - 1; if (cost[next] > d + cost[curr]) { cost[next] = d + cost[curr]; q.push(make_pair(-cost[next], next)); } } } return cost[dst] <= k; }; lli small = 1; lli large = 1LL << 60; while (small + 1 < large) { lli mid = (small + large) / 2; if (fn(mid)) large = mid; else small = mid; } if (fn(small)) cout << small << endl; else cout << large << endl; } return 0; }