Need help making a void function with two characters in C++ that would allow me to run an encryption.

The requirements are to user for an input string, call your encription algorithm, and then print out the encrypted result to the user. A C string will be scrambled by alternating characters from the end and then the beginning of an array.

Example: Hello 351

Result: H3e5l1l ol

Is anyone able to help me get started on creating this function? One requirement is to only use the library , and the void function is: void encrypt(const char beginning[], char encrypted[])

here's another example

Index 0 1 2 3 4 5 Data H ELLO 10 Data | o |HL|EL| 10 | Index 0 1 2 3 4 5 Index 0 1 2 3 4 5 Data H ELLO 10 Data | o |HL|EL| 10 | Index 0 1 2 3 4 5