4.Дан текст, состоящий из слов, разделенных пробелами. Подсч

#include <iostream>
#include <cstring>
using namespace std;
int main ()
{
    int counter2 = 0;
    int counter =0;
    int prevCounter2 = 0;
    char str[256];
    cin.getline(str, 256);
    char c;
    cout<<"Enter symbol: ";
    cin>>c;



  char * pch = strtok (str," ");

  while (pch != NULL)
  {
      prevCounter2 = counter2;
      for (int i=0;i<strlen(pch);i++)
      {

         if (pch[i] == c)
             counter++;

      }

      if (counter == 2){
          prevCounter2 = counter2;
          counter2++;
          for (int i=0;i<strlen(pch);i++)
          {
          if (!isalpha(pch[i]))
          {
              counter2= prevCounter2;
          }
          }
      counter = 0;
      pch = strtok (NULL, " ");
  }
  }
    cout<<"Symbol "<<c<<" 2 times in words: "<<counter2<<endl;

}