Решение задачи String 61

#include <bits/stdc++.h>

using namespace std;

int main()
{
    string s;
    cin >> s;
    int pos = s.rfind(char(92));
    int pos1 = s.rfind(char(92), pos - 1);
    cout << s.substr(pos1 + 1, pos - pos1 - 1);
    return 0;
}

program String61;
var
 FullName,FolderName:String;
 i,poz:integer;
 
begin
  Write('FullName: ');
  Readln(FullName);
 
  Delete(FullName,1,pos('\',FullName));
  poz:=pos('\',FullName);
 
  FolderName:='';
 
  while (poz>0) do
   begin
    FolderName:=Copy(FullName,1,pos('\',FullName)-1);
    Delete(FullName,1,poz);
    poz:=pos('\',FullName)
   end;
 
  if FolderName='' then FolderName:='\';
  Writeln(FolderName);
end.