제출 #1029836

#제출 시각아이디문제언어결과실행 시간메모리
1029836earlyamazonSavez (COCI15_savez)C++14
120 / 120
63 ms40284 KiB
// wzorcowka KMP i trie #include <bits/stdc++.h> using namespace std; const int mn = 1e6+7; int n, terwyn, wyn, wsk = 2; vector<int> ps; struct node{ vector<int> s; int dp = 0; }; node trie[mn]; void zejdz(string s, int ind=1, int poz=0, int indps=0){ // cout<<"a: "<<s<<" "<<indps<<" "<<poz<<" "<<ind<<"\n"; for (int poz = 0; poz <= s.size(); poz++){ if (indps < ps.size() && ps[indps] == poz) { terwyn = max(terwyn, trie[ind].dp); indps++; } if (poz == s.size()) break; if (trie[ind].s.size() < 26) trie[ind].s.resize(26); if (!trie[ind].s[s[poz]-'A']){ trie[ind].s[s[poz]-'A'] = wsk++; } ind = trie[ind].s[s[poz] - 'A']; } trie[ind].dp = terwyn + 1; wyn = max(wyn, trie[ind].dp); } int main(){ ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin>>n; string s; trie[1].s.resize(26); for (int i = 0; i < n; i++){ cin>>s; vector<int> pi = {0}; ps.clear(); ps.push_back(s.size()); terwyn = 0; for (int j = 1; j < s.size(); j++){ int k = pi.back(); while (s[j] != s[k] && k){ k = pi[k-1]; } pi.push_back(k); if (s[j] == s[k]) { pi.back()++; } } // for (auto j : pi) cout<<j<<" "; // cout<<"\n"; int k = pi.back(); while (k){ ps.push_back(k); k = pi[k-1]; } reverse(ps.begin(), ps.end()); // for (auto j : ps) cout<<j<<" "; // cout<<"\n"; zejdz(s); } cout<<wyn<<"\n"; }

컴파일 시 표준 에러 (stderr) 메시지

savez.cpp: In function 'void zejdz(std::string, int, int, int)':
savez.cpp:19:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for (int poz = 0; poz <= s.size(); poz++){
      |                       ~~~~^~~~~~~~~~~
savez.cpp:20:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |         if (indps < ps.size() && ps[indps] == poz) {
      |             ~~~~~~^~~~~~~~~~~
savez.cpp:24:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |         if (poz == s.size()) break;
      |             ~~~~^~~~~~~~~~~
savez.cpp: In function 'int main()':
savez.cpp:46:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for (int j = 1; j < s.size(); j++){
      |                         ~~^~~~~~~~~~
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