C++ course

Arrays in C++ are a fundamental data structure used to store a fixed-size sequential collection of elements of the same type. They are useful when you need to work with a collection of data, such as numbers, characters, or objects.

int array[] { 1, 2, 3, 4, 5 };

array[]: This is the name of the array. The empty square brackets [] indicate that the size of the array will be determined by the number of elements provided in the initializer list.

{ 1, 2, 3, 4, 5 }: This is the initializer list, which provides the initial values for the elements of the array.

So, int array[] { 1, 2, 3, 4, 5 }; declares an integer array named array and initializes it with the values 1, 2, 3, 4, 5. The size of the array is automatically determined based on the number of elements in the initializer list, which in this case is 5.

The expression ++i is known as the prefix increment operator in C++. It increments the value of the variable i by one before it is used in any further operations. This means that the value of i will be increased first, and then the incremented value will be used in the expression.

This is in contrast to the postfix increment operator (i++), where the original value of the variable is used in the expression first, and then the variable is incremented.

A do-while loop in C++ is a control flow statement that executes a block of code at least once and then repeatedly executes the block as long as a specified condition is true.

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