結果
問題 | No.1400 すごろくで世界旅行 |
ユーザー | yosswi414 |
提出日時 | 2021-02-19 02:28:51 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 664 ms / 3,153 ms |
コード長 | 4,144 bytes |
コンパイル時間 | 2,358 ms |
コンパイル使用メモリ | 212,940 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-09-15 07:04:17 |
合計ジャッジ時間 | 4,644 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 4 ms
5,376 KB |
testcase_07 | AC | 6 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 3 ms
5,376 KB |
testcase_11 | AC | 3 ms
5,376 KB |
testcase_12 | AC | 19 ms
5,376 KB |
testcase_13 | AC | 228 ms
5,376 KB |
testcase_14 | AC | 664 ms
5,376 KB |
testcase_15 | AC | 85 ms
5,376 KB |
testcase_16 | AC | 84 ms
5,376 KB |
testcase_17 | AC | 89 ms
5,376 KB |
testcase_18 | AC | 87 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
ソースコード
// head of mylib.h #include <bits/stdc++.h> using ll = long long; using ull = unsigned long long; using pi = std::pair<ll, ll>; #define chmin(x, a) ((x) = std::min({(x), (a)}) #define chmax(x, a) ((x) = std::max({(x), (a)}) template <class T> class V : public std::vector<T> { typedef std::vector<T> vector; public: using vector::begin; using vector::end; using vector::operator[]; using vector::back; using vector::clear; using vector::const_iterator; using vector::empty; using vector::erase; using vector::front; using vector::insert; using vector::iterator; using vector::pop_back; using vector::push_back; using vector::rbegin; using vector::rend; using vector::resize; using vector::size; using vector::vector; ll sum() const { ll x = 0; std::cout << "sum()" << std::endl; return x; } ll max() const { ll x = std::numeric_limits<ll>::min(); std::cout << "max()" << std::endl; return x; } ll min() const { ll x = std::numeric_limits<ll>::max(); std::cout << "min()" << std::endl; return x; } }; template <class T> using VV = V<V<T>>; template <class T> std::ostream& operator<<(std::ostream& os, const V<T>& v) { for (auto itr = v.begin(); itr != v.end();++itr) os << (itr != v.begin() ? " " : "") << *itr; os << std::endl; return os; } template <class T> std::istream& operator>>(std::istream& is, V<T>& v) { for (auto& i : v) is >> i; return is; } void fin(const char* str){ std::cout << str << std::endl; exit(0); } // end of mylib.h using namespace std; #define MAX_LEN 2000 using bs = bitset<MAX_LEN>; V<bs> prod(const V<bs>& A, const V<bs>& B, bool counted = false) { int v = A.size(); V<bs> X(v); for (int i = 0; i < v; ++i) { for (int j = A[i]._Find_first(); j < v; j = A[i]._Find_next(j)) { X[i] |= B[j]; } } // if (!counted) { // int na = 0, nb = 0; // for (int i = 0; i < v; ++i) { // na += A[i].count(); // nb += B[i].count(); // if (na > nb) return prod(B, A, true); // } // } // for (int i = 0; i < v; ++i) { // for (int j = 0; j < v; ++j) { // for (int k = A[i]._Find_first(); k < v; k = A[i]._Find_next(k)) { // if(B[k][j]){ // X[i].set(j); // break; // } // } // } // } return X; }; int doubling() { ll v, d; cin >> v >> d; d = min(d, v * 2ll); V<bs> E(v); for (auto& i : E) { string str; cin >> str; reverse(str.begin(), str.end()); i = bs(str); } const int pwrdp = 12; // 2^12 > 2V > 2^11 VV<bs> dp(pwrdp, V<bs>(v)); dp[0] = E; for (int i = 1; i < pwrdp; ++i) { dp[i] = prod(dp[i - 1], dp[i - 1]); } V<bs> Rchbl(v); for (int i = 0; i < v; ++i) Rchbl[i].set(i); for (int di = 0, dd = d; dd > 0; ++di, dd /= 2) { if (dd & 1) Rchbl = prod(Rchbl, dp[di]); } for (int i = 0; i < v; ++i) if ((ll)Rchbl[i].count() < v) return cout << "No" << endl, 0; cout << "Yes" << endl; return 0; } int normal() { ll v, d; cin >> v >> d; d = min(d, v * 2); V<bs> E(v); for (auto& i : E) { string str; cin >> str; reverse(str.begin(), str.end()); i = bs(str); } for (int i = 0; i < v; ++i) { bs reachable = E[i], back1, back2; back1[i] = true; // already consumed 1 turn for reachable for (int j = 0; j < d - 1; ++j) { bs diff = reachable ^ back2; // back1 ^ back2 if (diff.none()) break; back2 = back1; for (int k = diff._Find_first(); k < v; k = diff._Find_next(k)) back1 |= E[k]; swap(reachable, back1); } if ((ll)reachable.count() < v) return cout << "No" << endl, 0; } cout << "Yes" << endl; return 0; } int main(){ normal(); }