Write a program that prints a table indicating the number of occurrences of each alphabet

in the text entered as command line arguments.

#include <iostream>
using namespace std;

int main()
{
   
    char str[100];
    int i;
    int freq[256] = {0};
   
   
    cout<<"Enter the string: ";
    gets(str);
   
   
    for(i = 0; str[i] != '\0'; i++)
    {
        freq[str[i]]++;
    }
   
    for(i = 0; i < 256; i++)
    {
        if(freq[i] != 0)
        {
           cout<<"The frequency of "<<char(i)<<" is "<<freq[i]<<endl;
        }
    }
    return 0;
}