write a program in c++ which contains two functions: 1. declare a dynamic array and write resize functions which resizes array in such a way that it retains old data and discard overflow data if new...

write a program in c++ which contains two functions:

1. declare a dynamic array and write resize functions which resizes array in such a way that it retains old data and discard overflow data if new size is smaller.

2.declare a dynamic matrix and write resize functions which resizes matriz in such a way that it retains old data and discard overflow data if new size is smaller