結果
問題 | No.2606 Mirror Relay |
ユーザー | 👑 hos.lyric |
提出日時 | 2024-01-12 21:34:37 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 21 ms / 2,000 ms |
コード長 | 4,448 bytes |
コンパイル時間 | 1,245 ms |
コンパイル使用メモリ | 118,624 KB |
実行使用メモリ | 28,712 KB |
最終ジャッジ日時 | 2024-09-27 21:28:21 |
合計ジャッジ時間 | 4,107 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 3 ms
6,944 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 2 ms
6,944 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 2 ms
6,944 KB |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | AC | 2 ms
6,944 KB |
testcase_22 | AC | 3 ms
6,940 KB |
testcase_23 | AC | 3 ms
6,940 KB |
testcase_24 | AC | 2 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,940 KB |
testcase_26 | AC | 3 ms
6,940 KB |
testcase_27 | AC | 2 ms
6,940 KB |
testcase_28 | AC | 3 ms
6,944 KB |
testcase_29 | AC | 2 ms
6,944 KB |
testcase_30 | AC | 2 ms
6,940 KB |
testcase_31 | AC | 2 ms
6,940 KB |
testcase_32 | AC | 2 ms
6,940 KB |
testcase_33 | AC | 2 ms
6,940 KB |
testcase_34 | AC | 2 ms
6,944 KB |
testcase_35 | AC | 2 ms
6,940 KB |
testcase_36 | AC | 2 ms
6,944 KB |
testcase_37 | AC | 2 ms
6,940 KB |
testcase_38 | AC | 2 ms
6,940 KB |
testcase_39 | AC | 14 ms
27,200 KB |
testcase_40 | AC | 14 ms
27,180 KB |
testcase_41 | AC | 14 ms
27,200 KB |
testcase_42 | AC | 14 ms
27,244 KB |
testcase_43 | AC | 14 ms
27,136 KB |
testcase_44 | AC | 14 ms
27,132 KB |
testcase_45 | AC | 13 ms
27,152 KB |
testcase_46 | AC | 14 ms
27,132 KB |
testcase_47 | AC | 14 ms
27,124 KB |
testcase_48 | AC | 13 ms
27,136 KB |
testcase_49 | AC | 16 ms
27,664 KB |
testcase_50 | AC | 16 ms
27,576 KB |
testcase_51 | AC | 18 ms
27,644 KB |
testcase_52 | AC | 17 ms
27,448 KB |
testcase_53 | AC | 17 ms
27,640 KB |
testcase_54 | AC | 16 ms
27,576 KB |
testcase_55 | AC | 18 ms
27,932 KB |
testcase_56 | AC | 16 ms
27,564 KB |
testcase_57 | AC | 16 ms
27,612 KB |
testcase_58 | AC | 17 ms
27,672 KB |
testcase_59 | AC | 14 ms
27,288 KB |
testcase_60 | AC | 13 ms
27,204 KB |
testcase_61 | AC | 14 ms
27,156 KB |
testcase_62 | AC | 14 ms
27,280 KB |
testcase_63 | AC | 14 ms
27,184 KB |
testcase_64 | AC | 14 ms
27,192 KB |
testcase_65 | AC | 13 ms
27,180 KB |
testcase_66 | AC | 14 ms
27,216 KB |
testcase_67 | AC | 14 ms
27,188 KB |
testcase_68 | AC | 14 ms
27,340 KB |
testcase_69 | AC | 21 ms
28,712 KB |
testcase_70 | AC | 2 ms
6,944 KB |
testcase_71 | AC | 2 ms
6,940 KB |
testcase_72 | AC | 2 ms
6,944 KB |
ソースコード
#include <cassert> #include <cmath> #include <cstdint> #include <cstdio> #include <cstdlib> #include <cstring> #include <algorithm> #include <bitset> #include <complex> #include <deque> #include <functional> #include <iostream> #include <limits> #include <map> #include <numeric> #include <queue> #include <random> #include <set> #include <sstream> #include <string> #include <unordered_map> #include <unordered_set> #include <utility> #include <vector> using namespace std; using Int = long long; template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; }; template <class T> ostream &operator<<(ostream &os, const vector<T> &as) { const int sz = as.size(); os << "["; for (int i = 0; i < sz; ++i) { if (i >= 256) { os << ", ..."; break; } if (i > 0) { os << ", "; } os << as[i]; } return os << "]"; } template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; } template <class T> bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; } template <class T> bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; } #define COLOR(s) ("\x1b[" s "m") // alphabet is [OFFSET, OFFSET + SIZE), with sentinel (OFFSET - 1) template <class T, int SIZE, T OFFSET> struct Pam { struct Node { // ts[pos, pos + len]: suffix when created // fail: longest proper palindromic suffix int len, pos, fail; int nxt[SIZE]; }; // nodes[0]: length 0 (also means null in nxt) // nodes[1]: length -1 // nodes[2, nodesLen): non-empty palindromic substring // suf: node for longest palindromic suffix int nodesLen, suf; vector<Node> nodes; // current whole string: ts[0, r) (0 <= r <= nR) int nR, r; vector<T> tsBuffer; T *ts; Pam(int nR_) : nR(nR_) { nodesLen = 2; suf = 0; nodes.resize(2 + nR); nodes[0].len = 0; nodes[0].pos = 0; nodes[0].fail = 1; nodes[1].len = -1; nodes[1].pos = 0; nodes[1].fail = 1; memset(nodes[0].nxt, 0, sizeof(nodes[0].nxt)); memset(nodes[1].nxt, 0, sizeof(nodes[1].nxt)); r = 0; tsBuffer.assign(1 + nR, OFFSET - 1); ts = tsBuffer.data() + 1; } const Node &operator[](int u) const { return nodes[u]; } void pushBack(T t) { assert(r < nR); const int a = t - OFFSET; ts[r++] = t; for (; ts[r - 2 - nodes[suf].len] != t; suf = nodes[suf].fail) {} Node &f = nodes[suf]; if (!f.nxt[a]) { Node &g = nodes[nodesLen]; g.len = f.len + 2; g.pos = r - g.len; int u = f.fail; for (; ts[r - 2 - nodes[u].len] != t; u = nodes[u].fail) {} g.fail = nodes[u].nxt[a]; memset(g.nxt, 0, sizeof(g.nxt)); f.nxt[a] = nodesLen++; // this needs to be after setting g.fail } suf = f.nxt[a]; } void dfsPrint(ostream &os, int u, const string &branch, int type) const { const Node &f = nodes[u]; os << branch << ((type == 0) ? "" : (type == 1) ? "|-- " : "`-- "); if (f.len <= 0) { os << "(" << f.len << ")"; } else { for (int i = f.pos; i < f.pos + f.len; ++i) os << ts[i]; } os << " " << u << " " << f.fail; // debug here os << "\n"; int a0 = -1; for (int a = 0; a < SIZE; ++a) if (f.nxt[a]) a0 = a; for (int a = 0; a < SIZE; ++a) if (f.nxt[a]) { dfsPrint(os, f.nxt[a], branch + ((type == 0) ? "" : (type == 1) ? "| " : " "), (a == a0) ? 2 : 1); } } friend ostream &operator<<(ostream &os, const Pam &pam) { pam.dfsPrint(os, 0, " ", 0); pam.dfsPrint(os, 1, "", 0); return os; } }; int N; char S[200'010]; int main() { for (; ~scanf("%s", S); ) { N = strlen(S); Pam<char, 26, 'a'> pam(N); vector<int> us(N + 1); us[0] = 0; for (int i = 0; i < N; ++i) { pam.pushBack(S[i]); us[i + 1] = pam.suf; } // cerr<<pam<<"us = "<<us<<endl; vector<Int> dp(pam.nodesLen, 0); for (int i = 1; i <= N; ++i) ++dp[us[i]]; // cerr<<"dp = "<<dp<<endl; for (int u = pam.nodesLen; --u >= 2; ) dp[pam.nodes[u].fail] += dp[u]; // cerr<<"dp = "<<dp<<endl; for (int u = 0; u < pam.nodesLen; ++u) dp[u] *= pam.nodes[u].len; for (int u = 2; u < pam.nodesLen; ++u) dp[u] += dp[pam.nodes[u].fail]; // cerr<<"dp = "<<dp<<endl; Int ans = 0; for (int u = 0; u < pam.nodesLen; ++u) chmax(ans, dp[u]); printf("%lld\n", ans); } return 0; }