Submission #1227056

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;

int main(){
  string s;
  set<string> ans;
  
  getline(cin,s);
  
  for(int i=0;i<s.size()-1;i++){
    if(s[i]=='@'&&'a'<=s[i+1]&&s[i+1]<='z'){
      string t;
      int j=i+1;
      
      for(j=i+1;j<s.size();j++)
	if('a'<=s[j]&&s[j]<='z')t+=s[j];
	else break;

      ans.insert(t);
      i=j-1;
    }
  }
  
  set<string>::iterator ite=ans.begin();

  while(ite!=ans.end())cout<<(*ite)<<endl,ite++;
  
  return 0;
}

Submission Info

Judge Result