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  1. #include <iostream>
  2. #include <set>
  3. #include <map>
  4. #include <stack>
  5. #include <algorithm>
  6.  
  7. using namespace std;
  8.  
  9. string t;
  10. int n,m;
  11. set <string> words;
  12. map <string, string> mymap;
  13.  
  14. stack <string> ans;
  15. int mz = 0;
  16.  
  17. string lower(string s){
  18.     int len = s.size();
  19.     for(int i = 0; i<len; i++){
  20.         if(s[i]<'a') s[i] = s[i] - 'A' + 'a';
  21.     }
  22.     return s;
  23. }
  24.  
  25. bool sol(string s){
  26.     if(s=="") return true;
  27.     string z = "";
  28.     int len = s.size();
  29.     for(int i = 0; i<min(mz,len); i++){
  30.         z += s[i];
  31.         if(words.find(z)!=words.end()){
  32.             ans.push(z);
  33.             if(sol(s.substr(i+1,len-i))){
  34.                 while(!ans.empty()){
  35.                     cout<<mymap[ans.top()]<<" ";
  36.                     ans.pop();
  37.                 }
  38.                 break;
  39.             }
  40.         }
  41.     }
  42.     if(!ans.empty()) ans.pop();
  43.     return false;
  44. }
  45.  
  46. int main(){
  47.     cin>>n;
  48.     cin>>t;
  49.     cin>>m;
  50.     string tmp,tmp2;
  51.     for(int i = 0; i<m; i++){
  52.         cin>>tmp;
  53.         tmp2 = lower(tmp);
  54.         words.insert(tmp2);
  55.         mymap[tmp2] = tmp;
  56.         mz = max(mz,(int)tmp.size());
  57.     }
  58.     reverse(t.begin(),t.end());
  59.     sol(t);
  60.     return 0;
  61. }
Success #stdin #stdout 0s 3476KB
comments (?)
stdin 
30
ariksihsidlihcdnaehsetahgnisol
10
Kira
hates
is
he
losing
death
childish
L
and
Note
stdout 
Kira is childish and he hates losing
https://ideone.com/mfEKvy
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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