結果
問題 | No.599 回文かい |
ユーザー | Jumbo_kpr |
提出日時 | 2019-08-01 15:14:50 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 107 ms / 4,000 ms |
コード長 | 3,278 bytes |
コンパイル時間 | 914 ms |
コンパイル使用メモリ | 100,880 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-05 07:30:52 |
合計ジャッジ時間 | 1,964 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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
6,812 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 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
6,944 KB |
testcase_10 | AC | 3 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 3 ms
6,944 KB |
testcase_13 | AC | 3 ms
6,940 KB |
testcase_14 | AC | 67 ms
6,944 KB |
testcase_15 | AC | 6 ms
6,940 KB |
testcase_16 | AC | 94 ms
6,944 KB |
testcase_17 | AC | 107 ms
6,940 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | AC | 2 ms
6,940 KB |
testcase_20 | AC | 2 ms
6,940 KB |
evil_0.txt | AC | 29 ms
6,940 KB |
ソースコード
//#pragma GCC optimize ("-O3","unroll-loops") #include<iostream> #include<string> #include<algorithm> #include<vector> #include<queue> #include<map> #include<math.h> #include<iomanip> #include<set> #include<numeric> #include<cstring> #include<cstdio> #include<functional> #include<bitset> #include<limits.h> #include<cassert> #include<iterator> #include<complex> #include<stack> #include <stdio.h> #define REP(i, n) for(int i = 0;i < n;i++) #define REPR(i, n) for(int i = n;i >= 0;i--) #define FOR(i, m, n) for(int i = m;i < n;i++) #define FORR(i, m, n) for(int i = m;i >= n;i--) #define SORT(v, n) sort(v, v+n); #define VSORT(v) sort(v.begin(), v.end()); #define REVERSE(v,n) reverse(v,v+n); #define VREVERSE(v) reverse(v.begin(), v.end()); #define ll long long #define pb(a) push_back(a) #define m0(x) memset(x,0,sizeof(x)) #define print(x) cout<<x<<'\n'; #define pe(x) cout<<x<<" "; #define lb(v,n) lower_bound(v.begin(), v.end(), n); #define ub(v,n) upper_bound(v.begin(), v.end(), n); //#define int long long #define all(x) (x).begin(), (x).end() //#define double long double using namespace std; template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } const int MOD = 1e9 + 7; const ll INF = 1e17; const double pi = acos(-1); const double EPS = 1e-10; typedef pair<int, int>P; const int MAX = 200020; template< unsigned mod > struct RollingHash { vector< unsigned > hashed, power; inline unsigned mul(unsigned a, unsigned b) const { unsigned long long x = (unsigned long long) a * b; unsigned xh = (unsigned)(x >> 32), xl = (unsigned)x, d, m; asm("divl %4; \n\t" : "=a" (d), "=d" (m) : "d" (xh), "a" (xl), "r" (mod)); return m; } RollingHash(const string &s, unsigned base = 10007) { int sz = (int)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] = mul(power[i], base); hashed[i + 1] = mul(hashed[i], base) + s[i]; if (hashed[i + 1] >= mod) hashed[i + 1] -= mod; } } unsigned get(int l, int r) const { unsigned ret = hashed[r] + mod - mul(hashed[l], power[r - l]); if (ret >= mod) ret -= mod; return ret; } unsigned connect(unsigned h1, int h2, int h2len) const { unsigned ret = mul(h1, power[h2len]) + h2; if (ret >= mod) ret -= mod; return ret; } int LCP(const RollingHash< mod > &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) / 2; if (get(l1, l1 + mid) == b.get(l2, l2 + mid)) low = mid; else high = mid; } return (low); } }; using RH = RollingHash< 1000000007 >; int H[10100]; ll dp[10010]; string S; int N; ll func(int i,RH &rh) { if (dp[i] != -1) { return dp[i]; } ll res = 1; FOR(k, 1, N / 2 + 1-i) { int h1 = rh.get(i, i + k), h2 = rh.get(N - i -k, N - i); //pe(i)pe(k)pe(h1)print(h2); if (h1 == h2) { res += func(i + k,rh); res %= MOD; } } dp[i] = res; return res; } signed main() { cin.tie(0); ios::sync_with_stdio(false); string S; cin >> S; N = S.size(); RH rh(S); REP(i, 10010)dp[i] = -1; print(func(0,rh)); }