結果
問題 | No.1192 半部分列 |
ユーザー | minato |
提出日時 | 2020-12-22 09:09:23 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 36 ms / 2,000 ms |
コード長 | 4,838 bytes |
コンパイル時間 | 3,256 ms |
コンパイル使用メモリ | 228,272 KB |
実行使用メモリ | 30,720 KB |
最終ジャッジ日時 | 2024-09-21 13:47:21 |
合計ジャッジ時間 | 5,284 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 | 1 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 36 ms
30,720 KB |
testcase_07 | AC | 34 ms
30,464 KB |
testcase_08 | AC | 34 ms
30,464 KB |
testcase_09 | AC | 32 ms
29,312 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 34 ms
30,464 KB |
testcase_13 | AC | 15 ms
15,104 KB |
testcase_14 | AC | 21 ms
20,352 KB |
testcase_15 | AC | 20 ms
19,456 KB |
testcase_16 | AC | 15 ms
15,104 KB |
testcase_17 | AC | 19 ms
19,840 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 7 ms
8,064 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 16 ms
16,640 KB |
testcase_22 | AC | 2 ms
5,376 KB |
testcase_23 | AC | 34 ms
30,336 KB |
testcase_24 | AC | 6 ms
7,808 KB |
testcase_25 | AC | 14 ms
14,336 KB |
testcase_26 | AC | 13 ms
14,592 KB |
testcase_27 | AC | 16 ms
16,384 KB |
ソースコード
#ifdef ONLINE_JUDGE #pragma GCC target("avx2,avx") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #endif #include <bits/stdc++.h> using namespace std; using ll = long long; using ull = unsigned long long; using i128 = __int128_t; using pii = pair<int, int>; using pll = pair<long long, long long>; template<class T> using vec = vector<T>; template<class T> using vvec = vector<vector<T>>; #define rep(i, n) for (int i = 0; i < (n); i++) #define rrep(i, n) for (int i = int(n) - 1; i >= 0; i--) #define all(x) (x).begin(), (x).end() constexpr char ln = '\n'; istream& operator>>(istream& is, __int128_t& x) { x = 0; string s; is >> s; int n = int(s.size()), it = 0; if (s[0] == '-') it++; for (; it < n; it++) x = (x * 10 + s[it] - '0'); if (s[0] == '-') x = -x; return is; } ostream& operator<<(ostream& os, __int128_t x) { if (x == 0) return os << 0; if (x < 0) os << '-', x = -x; deque<int> deq; while (x) deq.emplace_front(x % 10), x /= 10; for (int e : deq) os << e; return os; } template<class T1, class T2> ostream& operator<<(ostream& os, const pair<T1, T2>& p) { return os << "(" << p.first << ", " << p.second << ")"; } template<class T> ostream& operator<<(ostream& os, const vector<T>& v) { os << "{"; for (int i = 0; i < int(v.size()); i++) { if (i) os << ", "; os << v[i]; } return os << "}"; } template<class Container> inline int SZ(Container& v) { return int(v.size()); } template<class T> inline void UNIQUE(vector<T>& v) { v.erase(unique(v.begin(), v.end()), v.end()); } template<class T1, class T2> inline bool chmax(T1& a, T2 b) { if (a < b) {a = b; return true ;} return false ;} template<class T1, class T2> inline bool chmin(T1& a, T2 b) { if (a > b) {a = b; return true ;} return false ;} inline int topbit(ull x) { return x == 0 ? -1 : 63 - __builtin_clzll(x); } inline int botbit(ull x) { return x == 0 ? 64 : __builtin_ctzll(x); } inline int popcount(ull x) { return __builtin_popcountll(x); } inline int kthbit(ull x, int k) { return (x>>k) & 1; } inline constexpr long long TEN(int x) { return x == 0 ? 1 : TEN(x-1) * 10; } inline void print() { cout << "\n"; } template<class T> inline void print(const vector<T>& v) { for (int i = 0; i < int(v.size()); i++) { if (i) cout << " "; cout << v[i]; } print(); } template<class T, class... Args> inline void print(const T& x, const Args& ... args) { cout << x << " "; print(args...); } #ifdef MINATO_LOCAL inline void debug_out() { cerr << endl; } template <class T, class... Args> inline void debug_out(const T& x, const Args& ... args) { cerr << " " << x; debug_out(args...); } #define debug(...) cerr << __LINE__ << " : [" << #__VA_ARGS__ << "] =", debug_out(__VA_ARGS__) #define dump(x) cerr << __LINE__ << " : " << #x << " = " << (x) << endl #else #define debug(...) (void(0)) #define dump(x) (void(0)) #endif struct fast_ios { fast_ios() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// vector<vector<int>> calcNext(const string& S, bool islower = true) { int n = int(S.size()); const char c = islower ? 'a' : 'A'; vector<vector<int>> ret(n+1, vector<int>(26, n)); for (int i = n-1; i >= 0; i--) { for (int j = 0; j < 26; j++) ret[i][j] = ret[i+1][j]; ret[i][S[i]-c] = i; } return ret; } vec<int> calcsub(const string& S,const string& T) { int n = S.size(), m = T.size(); vec<int> ret(n+1,-1); ret[n] = m; int cur = m-1; rrep(i,n) { while (cur >= 0 and T[cur] != S[i]) cur--; if (cur >= 0) { ret[i] = cur; cur--; } } return ret; } int main() { string S,T; cin >> S >> T; int N = S.size(), M = T.size(); auto table = calcsub(S,T); auto nexS = calcNext(S); auto nexT = calcNext(T); string ans = ""; int l = 0; for (int i = 0; i < N;) { bool ok = false; //debug(i); rep(k,26) { int pos = nexS[i][k]; if (pos == N) continue; // l : Tのまだ使える最も右端の文字の位置 // table[x] : S[x,N]を部分列としてギリギリ含むTの場所 if (nexT[l][k]+1 <= table[pos+1]) continue; ok = true; ans += char(k+'a'); //debug(ans); if (nexT[l][k]==M) { cout << ans << ln; return 0; } i = pos+1; l = nexT[l][k]+1; //debug(l); break; } if (!ok) { cout << -1 << ln; return 0; } } }