結果
問題 | No.599 回文かい |
ユーザー | ミドリムシ |
提出日時 | 2018-08-09 08:35:46 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 34 ms / 4,000 ms |
コード長 | 4,040 bytes |
コンパイル時間 | 565 ms |
コンパイル使用メモリ | 66,944 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-23 04:17:56 |
合計ジャッジ時間 | 1,570 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 17 ms
6,944 KB |
testcase_11 | AC | 11 ms
6,940 KB |
testcase_12 | AC | 19 ms
6,940 KB |
testcase_13 | AC | 12 ms
6,944 KB |
testcase_14 | AC | 28 ms
6,940 KB |
testcase_15 | AC | 32 ms
6,940 KB |
testcase_16 | AC | 31 ms
6,944 KB |
testcase_17 | AC | 34 ms
6,940 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 1 ms
6,940 KB |
testcase_20 | AC | 2 ms
6,940 KB |
evil_0.txt | WA | - |
ソースコード
#include <iostream> #include <algorithm> #include <vector> #include <string.h> using namespace std; template<class T> inline void YES(T condition){ if(condition) cout << "YES" << endl; else cout << "NO" << endl; } template<class T> inline void Yes(T condition){ if(condition) cout << "Yes" << endl; else cout << "No" << endl; } template<class T> inline void POSS(T condition){ if(condition) cout << "POSSIBLE" << endl; else cout << "IMPOSSIBLE" << endl; } template<class T> inline void Poss(T condition){ if(condition) cout << "Possible" << endl; else cout << "Impossible" << endl; } template<class T> inline void First(T condition){ if(condition) cout << "First" << endl; else cout << "Second" << endl; } template<class T = string, class U = char>int character_count(T text, U character){ int ans = 0; for(U i: text){ ans += (i == character); } return ans; } long power(long base, long exponent, long module){ if(exponent % 2){ return power(base, exponent - 1, module) * base % module; }else if(exponent){ long root_ans = power(base, exponent / 2, module); return root_ans * root_ans % module; }else{ return 1; }} struct position{ int y, x; }; position move_pattern[4] = {{-1, 0}, {0, 1}, {1, 0}, {0, -1}}; // double euclidean(position first, position second){ return sqrt((second.x - first.x) * (second.x - first.x) + (second.y - first.y) * (second.y - first.y)); } template<class T, class U> string to_string(pair<T, U> x){ return to_string(x.first) + "," + to_string(x.second); } template<class itr> void array_output(itr start, itr goal){ string ans; for(auto i = start; i != goal; i++){ ans += to_string(*i) + " "; } ans.pop_back(); cout << ans << endl; } template<class itr> void cins(itr start, itr goal){ for(auto i = start; i != goal; i++){ cin >> (*i); } } template<class T> T gcd(T a, T b){ if(a && b){ return gcd(min(a, b), max(a, b) % min(a, b)); }else{ return a; }} template<class T> T lcm(T a, T b){ return a / gcd(a, b) * b; } #define mod long(1e9 + 7) #define all(x) (x).begin(), (x).end() #define bitcount(n) __builtin_popcountl(long(n)) #define fcout cout << fixed << setprecision(10) #define highest(x) (63 - __builtin_clzl(x)) const int _base = 1e9 + 9; struct RollingHash { vector< unsigned > hashed, power; RollingHash(const string& s) { int sz = s.size(); hashed.assign(sz + 1, 0); power.assign(sz + 1, 0); power[0] = 1; for(int i = 0; i < sz; i++) { power[i + 1] = power[i] * _base; } for(int i = 0; i < sz; i++) { hashed[i + 1] = (hashed[i] + s[i]) * _base; } } unsigned get(int l, int r) // [l, r) { return((hashed[r] - hashed[l] * power[r - l])); } unsigned connect(int h1, int h2, int h2len) { return(h1 * power[h2len] + h2); } int LCP(RollingHash& b, int l1, int r1, int l2, int r2) { int len = min(r1 - l1, r2 - l2); int low = -1, high = len + 1; while(high - low > 1) { int mid = (low + high) >> 1; if(get(l1, l1 + mid) == b.get(l2, l2 + mid)) low = mid; else high = mid; } return(low); } }; string S, S_reversed; RollingHash S_hash(""), S_reversed_hash(""); bool is_palindrome(int l, int r){ // [l, r) return S_hash.get(l, r) == S_reversed_hash.get(S.size() - r, S.size() - l); } long dp[20000]; long decompose(int now){ if(dp[now] != -1){ return dp[now]; }else if(now){ long ans = 0; for(int i = 0; i < now; i++){ ans += (S_hash.get(i, now) == S_hash.get(S.size() - now, S.size() - i)) * decompose(i); } return dp[now] = ans % mod; }else{ return dp[now] = 1; } } int main(){ cin >> S; S_reversed = S; reverse(all(S_reversed)); S_hash = RollingHash(S); S_reversed_hash = RollingHash(S_reversed); memset(dp, -1, sizeof(dp)); long ans = 0; for(int i = 0; i <= S.size() / 2; i++){ ans += decompose(i); } cout << ans % mod << endl; }