lb4.3.8

#include "pch.h"
#include <string.h>
#include <iostream>

using namespace std;

int main() {
    const int MAX = 4000;
    char str[MAX];
    char new_str[MAX] = { 0 };

    const char DELIMS[] = " .,:;!?-\'()";
    char *word, *Ntr;

    cout << "Enter a string: ";
    cin.getline(str, MAX);

    word = strtok_s(str, DELIMS, &Ntr);

    while (word != NULL) {
        int cnt_no_repeat = 0;
        int cnt_repeat = 0;
        int ptr_len = strlen(word) + 1;

        char *ptr_temp = new char[ptr_len];
        strcpy_s(ptr_temp, ptr_len, word);

        for (int i = 0; ptr_temp[i]; i++) {
            if (ptr_temp[i] == ' ') continue;
            char ch_tmp = ptr_temp[i];
            ptr_temp[i] = ' ';
            char *b = strchr(ptr_temp, ch_tmp);
            if (b != NULL) {
                cnt_repeat++;
                for (int j = b - ptr_temp; ptr_temp[j]; j++) {
                    if (ptr_temp[j] == ch_tmp)
                        ptr_temp[j] = ' ';
                }
            }
            else cnt_no_repeat++;
        }
        if (cnt_repeat > cnt_no_repeat) {
            strcat_s(new_str, word);
            int len = strlen(new_str);
            new_str[len] = ' ';
            new_str[len + 1] = 0;
        }
        word = strtok_s(NULL, DELIMS, &Ntr);
    }
    cout << endl << new_str << endl;
    return 0;
}