pointer to pointer in c++

Pointer to Pointer is a confusing concept for most beginners. I tried to explain the concept in simple way.
If u want me to explain any program or you have any doubt mention it in comments
:-)
Enjoy Learning
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• #education
• #pointer_to_pointer
• #pointers_to_pointers
• #multiple_pointers
• #pointers_in_c
• #double_pointer