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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. string s; 
  4. set<string> res;
  5. string tmp;
  6. void Try(int idx){
  7.     for(char x : {tolower(s[idx]),toupper(s[idx])}){
  8.         tmp += x; 
  9.         if(tmp.size() == s.size()){
  10.             res.insert(tmp);
  11.         }
  12.         else{
  13.             Try(idx+1);
  14.         }
  15.         tmp.pop_back();
  16.     }
  17. }
  18. int main(){
  19.     cin >> s; 
  20.     Try(0);
  21.     for(string x : res){
  22.         cout << x << endl;
  23.     }
  24. }
Success #stdin #stdout 0.01s 5308KB
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stdin
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28TeCH
stdout
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28TECH
28TECh
28TEcH
28TEch
28TeCH
28TeCh
28TecH
28Tech
28tECH
28tECh
28tEcH
28tEch
28teCH
28teCh
28tecH
28tech
https://ideone.com/7Dmlkq
[Quay lui-Nhánh cận]. Bài 24. Letter Case
language:
C++ (gcc 8.3)
created:
36 days ago
visibility:
public

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