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  1. #include <bits/stdc++.h>
  2. #define debug(x) cout << #x " = " << (x) << endl
  3. #define endl '\n'
  4.  
  5. using namespace std;
  6.  
  7. const int MS = 'z' - 'a' + 1;
  8. const int MN = 1000 * 1000 + 1000;
  9.  
  10. struct trie {
  11.   struct node {
  12.     int c;
  13.     int to[MS];
  14.   };
  15.  
  16.   node tree[MN];
  17.   int nodes;
  18.  
  19.   void clear(int node = 0) {
  20.     if (node == 0) nodes = 1;
  21.     memset(tree[node].to, -1, sizeof tree[node].to);
  22.     tree[node].c = 0;
  23.   }
  24.  
  25.   int insert(const string &s) {
  26.     int state = 0;
  27.     for (int i = 0; i < s.size(); ++i) {
  28.       int c = s[i] - 'a';
  29.       if (tree[state].to[c] == -1) {
  30.         clear(nodes);
  31.         tree[state].to[c] = nodes;
  32.         nodes++;
  33.       }
  34.       state = tree[state].to[c];
  35.       if (tree[state].c) return false;
  36.     }
  37.     tree[state].c++;
  38.     for (int i = 0; i < MS; ++i)
  39.       if (tree[state].to[i] != -1) return false;
  40.     return true;
  41.   }
  42. };
  43.  
  44. trie tree;
  45. int main() {
  46.   ios_base::sync_with_stdio(false);cin.tie(NULL);
  47.   int n;
  48.   while (cin >> n && n) {
  49.     tree.clear();
  50.     int ok = true;
  51.     for (int i = 0; i < n; ++i) {
  52.       string line; cin >> line;
  53.       if (ok)
  54.         ok &= tree.insert(line);
  55.     }
  56.     if (!ok)
  57.       cout << "Conjunto Ruim" << endl;
  58.     else
  59.       cout << "Conjunto Bom" << endl;
  60.   }
  61.   return 0;
  62. }
Success #stdin #stdout 0s 109056KB
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stdin
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3
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stdout
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Conjunto Bom
Conjunto Ruim
https://ideone.com/RoiU3k
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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