@stevep99 and @DreymaR, thanks for replying.
As far as I know, In C++,
Apostrophe ( ' ) is used only for defining characters and comparing, inserting, and removing them from the string.
Quotation marks ( " ) are only used to define and output a string (that's all).
The semicolon ( ; ) is used at the end of every line and often after some words. Usage of ( ; ) let alone is higher than both ( ' ) and ( " ) combined in just 100 lines of code. What if the no. of lines is higher? What if strings and characters are not used in a particular problem/code? (and that's the case most of the time).
Colon ( : ) is used for declaring iterators and outputting them and is also used in the Ternary operator. If we consider 100 problems, having 25 of the string and character-related. Colon will be used pretty much half of the total amount of ( ' ) and ( " ) combined in C++.
In short, usage of ( ; ) and ( : ) is way greater than usage of ( ' ) and ( " ) in coding.
I wanted to ask that question because I will probably use Colemak DHk for the rest of my life. So why not make use of every small detail to improve my speed and comfort. I am already using DHk instead of DHm (even if it gives only a slight advantage). Also, using the Capslock and Left-Alt as the Backspace and Enter keys, respectively.
I will not swap ( ; ) and ( ' ) positions as both of you said ( ; ) (in DHk) is in a slightly better place, and it would be beneficial for me as a Programmer.