вывод елементов строки и их сортировка the output line of el

#include <iostream>

using namespace std;

int main()
{
    char str[100],str1[26];
    int num[26];
    int i = 0, k = 0;

    cin.getline(str, 100);
    while (str[i] != '\0')
    {
        if (str[i] > 96 && str[i] < 123)
        {
            str[i]-=32;
        }
        if (str[i] != 32)
        {
            str1[k] = str[i];
            k++;
        }
        i++;
    }
    cout << endl << "kol-vo znakov:  " << i << endl;
    //p = i - k;
    //-----------------------------------------------
    for (int p = 0; p < 26; p++)
    {
        str1[p] = 'A' + p;
    }
    for (int j = 0; j < 26; j++)
    {
        num[j] = 0;
    }
    i = 0;
    //-----------------------------------------------
    while (str[i] != '\0')
    {
        for (int o = 0; o < 26; o++)
        {
            if (str[i] == str1[o])
            {
                num[o] += 1;
            }
        }
        i++;
    }
    //---------------------------------------------
    for(int i = 1; i < 26; i++)
    {
        for(int r = 0; r < 26 - i; r++)
        {
            if(num[r] < num[r+1])
            {
                int t = num[r];
                num[r] = num[r+1];
                num[r+1] = t;
                //----------------
                int l = str1[r];
                str1[r] = str1[r+1];
                str1[r+1] = l;
            }
        }
    }
    //---------------------------------------------
    for (int j = 0; j < 26; j++)
    {
        if (num[j] > 0)
        {
            cout << "'" << str1[j] << "'" << "-" << num[j] << endl;
        }
    }
    return 0;
}