IIla-quot;rite a prcgram tc implement sd me at these dpera'tic ns using ycur cwn cdde. Requirements: Declare ycur awn tunctic ns as the fullcwings:...

Any help with this questions will be appreciated, having a hard. time figuring out how to write these functions without <cstring> as we cannot use that.

NOTES: A C++ PROGRAM ONLY,

DO NOT INCLUDE any library other than <iostream>, <iomanip>, <fstream> and/or <cmath>.