Questions based on c and c++. Like what is difference between if-else and while, While and do-while. How to assign memory to array. Difference between stack and array. Code for exchange the value of 2 variables without using 3rd variable.

Questions based on c and c++. Like what is difference between if-else

1.	Questions based on c and c++. Like what is difference between if-else and while, While and do-while. How to assign memory to array. Difference between stack and array. Code for exchange the value of 2 variables without using 3rd variable.
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