Submission #581807

#	Time	Username	Problem	Language	Result	Execution time	Memory
581807		MilosMilutinovic	Rima (COCI17_rima)	C++14	28 / 140	431 ms	100084 KiB

rima

/**
 *    author:  wxhtzdy
 *    created: 22.06.2022 11:13:52
**/
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);  
  int n;
  cin >> n;
  vector<string> s(n);  
  for (int i = 0; i < n; i++) {
    cin >> s[i];
    reverse(s[i].begin(), s[i].end());       
  }                     
  sort(s.begin(), s.end(), [&](string x, string y) {
    if (x.size() != y.size()) {
      return x.size() < y.size();
    } else {  
      return x < y;
    }
  });                        
  vector<vector<int>> trie;
  vector<int> dp(1, 0);
  trie.push_back(vector<int>(26, -1));
  for (int i = 0; i < n; i++) {
    int p = 0;
    int t = -1;
    int mx = 0;
    for (int j = 0; j < (int) s[i].size(); j++) {
      int c = (int) (s[i][j] - 'a');
      if (trie[p][c] == -1) {
        trie[p][c] = (int) trie.size();
        trie.push_back(vector<int>(26, -1));
        dp.push_back(0);
      }
      p = trie[p][c];
      if (j >= (int) s[i].size() - 2) {
        mx = max(mx, dp[p]);
      }
      if (j == (int) s[i].size() - 2) {
        t = p;
      }
    }
    if (s[i].size() <= 1) {
      mx = dp[0];
    }         
    if (t != -1) {
      dp[t] = max(dp[t], mx + 1);  
    }
    dp[p] = max(dp[p], mx + 1);
  }
  cout << *max_element(dp.begin(), dp.end()) << '\n';                                                
  return 0;
}

• Subtask 1: 28 / 140