結果
問題 | No.2204 Palindrome Splitting (No Rearrangement ver.) |
ユーザー | mai |
提出日時 | 2023-02-03 22:18:48 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 7,371 bytes |
コンパイル時間 | 2,399 ms |
コンパイル使用メモリ | 214,792 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-07-02 20:22:17 |
合計ジャッジ時間 | 3,553 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
(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
6,812 KB |
testcase_01 | AC | 2 ms
6,812 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | WA | - |
testcase_04 | AC | 4 ms
6,940 KB |
testcase_05 | AC | 3 ms
6,940 KB |
testcase_06 | AC | 12 ms
6,940 KB |
testcase_07 | AC | 10 ms
6,944 KB |
testcase_08 | AC | 9 ms
6,944 KB |
testcase_09 | AC | 10 ms
6,944 KB |
testcase_10 | AC | 11 ms
6,940 KB |
testcase_11 | AC | 9 ms
6,940 KB |
testcase_12 | AC | 10 ms
6,940 KB |
testcase_13 | AC | 10 ms
6,944 KB |
testcase_14 | AC | 11 ms
6,944 KB |
testcase_15 | AC | 9 ms
6,940 KB |
testcase_16 | AC | 5 ms
6,940 KB |
testcase_17 | AC | 6 ms
6,940 KB |
testcase_18 | AC | 11 ms
6,940 KB |
testcase_19 | AC | 11 ms
6,940 KB |
testcase_20 | AC | 11 ms
6,940 KB |
testcase_21 | AC | 4 ms
6,944 KB |
testcase_22 | AC | 8 ms
6,944 KB |
testcase_23 | AC | 5 ms
6,940 KB |
testcase_24 | AC | 11 ms
6,944 KB |
testcase_25 | AC | 11 ms
6,940 KB |
testcase_26 | AC | 10 ms
6,940 KB |
testcase_27 | WA | - |
testcase_28 | AC | 9 ms
6,948 KB |
testcase_29 | AC | 7 ms
6,940 KB |
testcase_30 | AC | 2 ms
6,944 KB |
testcase_31 | AC | 2 ms
6,940 KB |
testcase_32 | AC | 2 ms
6,944 KB |
testcase_33 | AC | 1 ms
6,940 KB |
testcase_34 | WA | - |
testcase_35 | AC | 2 ms
6,940 KB |
ソースコード
#pragma GCC optimize("O3") #include <bits/stdc++.h> // clang-format off using namespace std; using ll = long long int; #define all(v) (v).begin(),(v).end() #define repeat(cnt,l) for(typename remove_const<typename remove_reference<decltype(l)>::type>::type cnt={};(cnt)<(l);++(cnt)) #define rrepeat(cnt,l) for(auto cnt=(l)-1;0<=(cnt);--(cnt)) #define iterate(cnt,b,e) for(auto cnt=(b);(cnt)!=(e);++(cnt)) #define upto(cnt,b,e,step) for(auto cnt=(b);(cnt)<=(e);(cnt)+=(step)) #define downto(cnt,b,e,step) for(auto cnt=(b);(e)<=(cnt);(cnt)-=(step)) const long long MD = 998244353; const long double PI = 3.1415926535897932384626433832795L; template<typename T1, typename T2> inline ostream& operator <<(ostream &o, const pair<T1, T2> p) { o << '(' << p.first << ':' << p.second << ')'; return o; } template<typename T> inline T& chmax(T& to, const T& val) { return to = max(to, val); } template<typename T> inline T& chmin(T& to, const T& val) { return to = min(to, val); } void bye(string s, int code = 0) { cout << s << endl; exit(code); } mt19937_64 randdev(8901016); template<typename T, typename Random = decltype(randdev), typename enable_if<is_integral<T>::value>::type* = nullptr> inline T rand(T l, T h, Random& rand = randdev) { return uniform_int_distribution<T>(l, h)(rand); } template<typename T, typename Random = decltype(randdev), typename enable_if<is_floating_point<T>::value>::type* = nullptr> inline T rand(T l, T h, Random& rand = randdev) { return uniform_real_distribution<T>(l, h)(rand); }template<typename T> static ostream& operator<<(ostream& o, const std::vector<T>& v) { o << "[ "; for(const auto& e : v) o<<e<<' '; return o << ']'; } template <typename I> struct MyRangeFormat{ I b,e; MyRangeFormat(I _b, I _e):b(_b),e(_e){} }; template<typename I> static ostream& operator<<(ostream& o, const MyRangeFormat<I>& f) { o << "[ "; iterate(i,f.b,f.e) o<<*i<<' '; return o << ']'; } template <typename I> struct MyMatrixFormat{ const I& p; long long n, m; MyMatrixFormat(const I& _p, long long _n, long long _m):p(_p),n(_n),m(_m){} }; template<typename I> static ostream& operator<<(ostream& o, const MyMatrixFormat<I>& f) { o<<'\n'; repeat(i,(f.n)) { repeat(j,f.m) o<<f.p[i][j]<<' '; o<<'\n'; } return o; } struct LOG_t { ~LOG_t() { cout << endl; } }; #define LOG (LOG_t(),cout<<'L'<<__LINE__<<": ") #define FMTA(m,w) (MyRangeFormat<decltype(m+0)>(m,m+w)) #define FMTR(b,e) (MyRangeFormat<decltype(e)>(b,e)) #define FMTV(v) FMTR(v.begin(),v.end()) #define FMTM(m,h,w) (MyMatrixFormat<decltype(m+0)>(m,h,w)) #if defined(_WIN32) || defined(_WIN64) #define getc_x _getc_nolock #define putc_x _putc_nolock #elif defined(__GNUC__) #define getc_x getc_unlocked #define putc_x putc_unlocked #else #define getc_x getc #define putc_x putc #endif class MaiScanner { FILE* fp_; constexpr bool isvisiblechar(char c) noexcept { return (0x21<=(c)&&(c)<=0x7E); } public: inline MaiScanner(FILE* fp):fp_(fp){} template<typename T> void input_integer(T& var) noexcept { var = 0; T sign = 1; int cc = getc_x(fp_); for (; cc < '0' || '9' < cc; cc = getc_x(fp_)) if (cc == '-') sign = -1; for (; '0' <= cc && cc <= '9'; cc = getc_x(fp_)) var = (var << 3) + (var << 1) + cc - '0'; var = var * sign; } inline int c() noexcept { return getc_x(fp_); } template<typename T, typename enable_if<is_integral<T>::value, nullptr_t>::type = nullptr> inline MaiScanner& operator>>(T& var) noexcept { input_integer<T>(var); return *this; } inline MaiScanner& operator>>(string& var) { int cc = getc_x(fp_); for (; !isvisiblechar(cc); cc = getc_x(fp_)); for (; isvisiblechar(cc); cc = getc_x(fp_)) var.push_back(cc); return *this; } template<typename IT> inline void in(IT begin, IT end) { for (auto it = begin; it != end; ++it) *this >> *it; } }; class MaiPrinter { FILE* fp_; public: inline MaiPrinter(FILE* fp):fp_(fp){} template<typename T> void output_integer(T var) noexcept { if (var == 0) { putc_x('0', fp_); return; } if (var < 0) putc_x('-', fp_), var = -var; char stack[32]; int stack_p = 0; while (var) stack[stack_p++] = '0' + (var % 10), var /= 10; while (stack_p) putc_x(stack[--stack_p], fp_); } inline MaiPrinter& operator<<(char c) noexcept { putc_x(c, fp_); return *this; } template<typename T, typename enable_if<is_integral<T>::value, nullptr_t>::type = nullptr> inline MaiPrinter& operator<<(T var) noexcept { output_integer<T>(var); return *this; } inline MaiPrinter& operator<<(const char* str_p) noexcept { while (*str_p) putc_x(*(str_p++), fp_); return *this; } inline MaiPrinter& operator<<(const string& str) { const char* p = str.c_str(); const char* l = p + str.size(); while (p < l) putc_x(*p++, fp_); return *this; } template<typename IT> void join(IT begin, IT end, char sep = ' ') { for (bool b = 0; begin != end; ++begin, b = 1) b ? *this << sep << *begin : *this << *begin; } }; MaiScanner scanner(stdin); MaiPrinter printer(stdout); // clang-format on class Manacher { public: vector<int> radius_; Manacher() {} Manacher(const string& str) { build(str); } void build(const string& str) { int length = str.size() * 2 - 1; radius_.resize(length); int c = 0; for (int i = 0; i < length; i++) { int l = c - (i - c); if (i + radius_[l] < c + radius_[c]) { radius_[i] = radius_[l]; } else { int j = c + radius_[c] - i; for (; i - j >= 0 && i + j < length; j++) { if (((i ^ j) & 1) == 1) continue; if (str[(i - j) / 2] != str[(i + j) / 2]) break; } radius_[i] = j; c = i; } } } inline int operator[](int idx) const { return radius_[idx]; } inline size_t size() const { return radius_.size(); } // 部分文字列str[left..right]が回文かどうか.計算量O(1) // left,rightに指定するインデックスは,基の文字列のインデックスを指定する. inline bool operator()(int left, int right) { return radius_[left + right] > right - left; } // 回文の個数を求める. long long count_num() { long long r = 0; for (auto it = radius_.begin(); it < radius_.end(); ++it, ++it) { r += (*it + 1ll) / 2ll; } for (auto it = radius_.begin() + 1; it < radius_.end(); ++it, ++it) { r += (*it) / 2ll; } return r; } // void print(const string& str) { // for (int i = 0; i < str.size(); i++) { // cout << str[i] << " "; // } // cout << endl; // for (int i = 0; i < radius_.size(); i++) { // cout << radius_[i]; // } // cout << endl; // } }; // int N; string S; Manacher manatee; // bool check(int w) { bool ok = true; repeat(i, N) { ok = false; upto(r, i + w-1, N-1, 1) { if (manatee(i, r)) { i = r; ok = true; break; } } if (!ok) return false; } return true; } int main() { scanner >> S; N = S.size(); manatee = Manacher(S); // int ok = 1; // int ng = N + 1; // while (ng - ok > 1) { // int m = (ng + ok)/2; // if (check(m)) { // ok = m; // } else { // ng = m; // } // } downto(w, N, 1, 1) { if (check(w)) { cout << w << endl; return 0; } } return 0; }