The way of combining two arrays into a single array is known as Array merging. In this program, we are going to merge the content of two arrays into a single array.
When we have a local variable with the same name as the global variable, we can’t access the value of the global variable as the environment always points to the value of the local variable. For Example: In such a case, we may use ‘extern’ to access the value of a global variable. For Example: