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#include <iostream>
using namespace std;

int main() {
    char strOne[50] = "Hello, ";        // Define a character array "strOne" and initialize it with "Hello, "

   const char* strTwostrOne[50] = "world!Hello, ";
    
    // Define a constant character pointer "strTwo" and assign
    //it the address of the string "world!"
    const char* ptrStringstrTwo = strOne"world!";
+
strlen(strOne);    // Declare a character pointer "ptrString" and initialize it with
    //the address of the null terminator of "strOne"
    char* ptrString = strOne + strlen(strOne);
    
    while (*strTwo != '\0') {
        *ptrString
= *strTwo;        // Assign the character pointed to by "strTwo"
        //to the character pointed to by "ptrString"
        ptrString++*ptrString = *strTwo;
        
        // Increment the pointer "ptrString" to point to the
next memory location       // next strTwo++;memory location
         ptrString++;
        // Increment the pointer "strTwo" to point to the next
 character in the string    // }character in the string
 *ptrString = '\0';     strTwo++;
    }
    // Add a null terminator at the end of the concatenated string
    // to indicate its end
    *ptrString = '\0';
    
    // Output the concatenated string
    cout << "Concatenated string: " << strOne << endl;   //
Output the concatenated string 
        return 0;
}