Question

Please write code in c++ using iostream library.

Write a function that have to copy one char array to other avoiding any not-letter symbols, program have to use pointer.

Input:
First line contains sequence of chars (size is not more that 100).

1w[a3ter11

output: water

Answer 1

#include <iostream>

using namespace std;

int main()

{

    // input character array

    char input[1000];

    // read input

    cin >> input;

    // copy to output array

    char output[1000];

    int i = 0, j = 0;

    // till end of input

    while (input[i] != 0)

    {

        // if current character is uppercase or lowercase letter

        if ((input[i] >= 'a' && input[i] <= 'z') || input[i] >= 'A' && input[i] <= 'Z')

            output[j++] = input[i];

        i++;

    }

    // append null

    output[j] = 0;

    // print output

    cout << output;

}

.

Output:

.