結果
問題 | No.465 PPPPPPPPPPPPPPPPAPPPPPPPP |
ユーザー | koyumeishi |
提出日時 | 2016-12-16 02:23:56 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 6,419 bytes |
コンパイル時間 | 1,507 ms |
コンパイル使用メモリ | 129,028 KB |
実行使用メモリ | 393,680 KB |
最終ジャッジ日時 | 2024-05-07 15:51:30 |
合計ジャッジ時間 | 9,047 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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
6,944 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 13 ms
6,940 KB |
testcase_06 | AC | 57 ms
10,020 KB |
testcase_07 | AC | 11 ms
6,944 KB |
testcase_08 | AC | 41 ms
10,000 KB |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | AC | 330 ms
90,152 KB |
testcase_12 | AC | 208 ms
64,852 KB |
testcase_13 | AC | 136 ms
49,808 KB |
testcase_14 | AC | 132 ms
45,956 KB |
testcase_15 | TLE | - |
testcase_16 | TLE | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
32_ratsliveonnoevilstar.txt | -- | - |
ソースコード
#include <iostream> #include <vector> #include <cstdio> #include <sstream> #include <map> #include <string> #include <algorithm> #include <queue> #include <cmath> #include <functional> #include <set> #include <ctime> #include <random> #include <chrono> #include <cassert> #include <tuple> #include <utility> using namespace std; namespace { using Integer = long long; //__int128; template<class T, class S> istream& operator >> (istream& is, pair<T,S>& p){return is >> p.first >> p.second;} template<class T> istream& operator >> (istream& is, vector<T>& vec){for(T& val: vec) is >> val; return is;} template<class T> istream& operator , (istream& is, T& val){ return is >> val;} template<class T, class S> ostream& operator << (ostream& os, const pair<T,S>& p){return os << p.first << " " << p.second;} template<class T> ostream& operator << (ostream& os, const vector<T>& vec){for(size_t i=0; i<vec.size(); i++) os << vec[i] << (i==vec.size()-1?"":" "); return os;} template<class T> ostream& operator , (ostream& os, const T& val){ return os << " " << val;} template<class H> void print(const H& head){ cout << head; } template<class H, class ... T> void print(const H& head, const T& ... tail){ cout << head << " "; print(tail...); } template<class ... T> void println(const T& ... values){ print(values...); cout << endl; } template<class H> void eprint(const H& head){ cerr << head; } template<class H, class ... T> void eprint(const H& head, const T& ... tail){ cerr << head << " "; eprint(tail...); } template<class ... T> void eprintln(const T& ... values){ eprint(values...); cerr << endl; } class range{ Integer start_, end_, step_; public: struct range_iterator{ Integer val, step_; range_iterator(Integer v, Integer step) : val(v), step_(step) {} Integer operator * (){return val;} void operator ++ (){val += step_;} bool operator != (range_iterator& x){return step_ > 0 ? val < x.val : val > x.val;} }; range(Integer len) : start_(0), end_(len), step_(1) {} range(Integer start, Integer end) : start_(start), end_(end), step_(1) {} range(Integer start, Integer end, Integer step) : start_(start), end_(end), step_(step) {} range_iterator begin(){ return range_iterator(start_, step_); } range_iterator end(){ return range_iterator( end_, step_); } }; inline string operator "" _s (const char* str, size_t size){ return move(string(str)); } constexpr Integer my_pow(Integer x, Integer k, Integer z=1){return k==0 ? z : k==1 ? z*x : (k&1) ? my_pow(x*x,k>>1,z*x) : my_pow(x*x,k>>1,z);} constexpr Integer my_pow_mod(Integer x, Integer k, Integer M, Integer z=1){return k==0 ? z%M : k==1 ? z*x%M : (k&1) ? my_pow_mod(x*x%M,k>>1,M,z*x%M) : my_pow_mod(x*x%M,k>>1,M,z);} constexpr unsigned long long operator "" _ten (unsigned long long value){ return my_pow(10,value); } inline int k_bit(Integer x, int k){return (x>>k)&1;} //0-indexed mt19937 mt(chrono::duration_cast<chrono::nanoseconds>(chrono::steady_clock::now().time_since_epoch()).count()); template<class T> string join(const vector<T>& v, const string& sep){ stringstream ss; for(size_t i=0; i<v.size(); i++){ if(i>0) ss << sep; ss << v[i]; } return ss.str(); } inline string operator * (string s, int k){ string ret; while(k){ if(k&1) ret += s; s += s; k >>= 1; } return ret; } } constexpr long long mod = 9_ten + 7; #include <bitset> using bits = bitset<500001>; class palindromic_tree{ public: struct node{ map<char, int> e; int suf; int len; int depth; }; const string& s; vector<node> t; vector<int> s_pos; void constract(){ int pos = 1; for(int i=0; i<s.size(); s_pos[i++] = pos){ while(1){ if( i-t[pos].len-1 >= 0 && s[i-t[pos].len-1] == s[i]) break; pos = t[pos].suf; } if(t[pos].e.count(s[i])){ pos = t[pos].e[s[i]]; continue; } int nx = t.size(); t.push_back(node{{}, -1, t[pos].len+2, 1}); t[pos].e[s[i]] = nx; if(t[nx].len == 1){ t[nx].suf = 1; pos = nx; t[pos].depth = t[t[pos].suf].depth+1; continue; } while(1){ pos = t[pos].suf; if( i-t[pos].len-1 >= 0 && s[i-t[pos].len-1] == s[i]){ t[nx].suf = t[pos].e[s[i]]; break; } } pos = nx; t[pos].depth = t[t[pos].suf].depth+1; } } void init(){ t[0].suf = 0; t[0].len = -1; t[0].depth = 0; t[1].suf = 0; t[1].len = 0; t[0].depth = 1; } palindromic_tree(const string& s_) : s(s_), t(2), s_pos(s_.size()){ init(); constract(); } }; long long dfs(palindromic_tree& p, int i, vector<bits*>& aho, int n, bits& head){ int pos = p.s_pos[i]; long long ret = 0; while(pos > 1){ if(aho[pos] != nullptr){ ret += (head&((*aho[pos])<<(n-1-i))).count(); assert(false); break; } int len = p.t[ pos ].len; int suf = p.t[ pos ].suf; assert(pos != suf); int left = i-len; if(left >= 0){ if(left - p.t[ p.s_pos[left] ].len == -1) ret++; } pos = suf; } return ret; } const int block = 100; void dfs2(palindromic_tree& p, vector<vector<int>>& G, int pos, bits& s, vector<bits*>& aho, int d){ if(pos>1) s.set( p.t[pos].len, 1 ); if(pos>1) if( d % block == 0){ aho[pos] = new bits(s); } for(int nx : G[pos]){ if(nx == pos)continue; dfs2(p,G, nx, s, aho, d+1); } if(pos>1) s.set( p.t[pos].len , 0 ); } int main(){ string s; cin >> s; set<char> unko(s.begin(), s.end()); if(unko.size() == 1){ long long n = s.size() - 3; println( n*(n+1)*(n+2)/6 ); return 0; } palindromic_tree p(s); bits head; for(int i=0; i<s.size(); i++){ if( p.t[p.s_pos[i]].len == i+1 ) head.set(s.size()-1-i,1); } vector<vector<int>> G(p.t.size()); for(int i=0; i<p.t.size(); i++){ G[ p.t[i].suf ].push_back( i ); } vector<bits*> aho(p.t.size(), nullptr); bits tmp; dfs2(p,G,0,tmp, aho, 0); vector<long long> dp(s.size()+1, 0); for(int i=1; i<s.size()-2; i++){ dp[i] = dfs(p, i, aho, s.size(), head); } for(int i=1; i<s.size(); i++){ dp[i] += dp[i-1]; } long long ans = 0; int pos = p.s_pos[ s.size()-1 ]; int i = s.size()-1; while(pos > 1){ int len = p.t[pos].len; int suf = p.t[pos].suf; int left = i-len-1; if( left >= 0 ){ ans += dp[left]; } pos = suf; } println(ans); return 0; }