#include < stdio.h>

int main()
{
    int arr[100], reverse[100];
    int size, i, j;

    printf("Enter size of the array: ");
    scanf("%d", &size);

    printf("\nEnter elements in array :: \n");
    for(i=0; i< size; i++)
    {
        printf("\nEnter %d element in array :: ",i+1);
        scanf("%d", &arr[i]);
    }

    j=0;
    for(i=size-1; i>=0; i--)
    {
        reverse[j] = arr[i];
        j++;
    }

    printf("\nReversed array : ");
    for(i=0; i< size; i++)
    {
        printf(" %d ", reverse[i]);
    }

    getch();
}

Program Explanation

Step 1 : Include header files (#include< stdio.h> and #include< conio.h>).

Step 2 : Start with main function with return type.

Step 3 : parenthesis to start and end the program { }.

Step 4 : declare variables with data type i.e, 'arr[100], reverse[100] , size, i, j' is an integer type so we use "int" data type.

Step 5 : Use output function printf() to print the output on the screen.

Step 6 : Use input function scanf() to get input from the user.

Step 7 : here, find reverse of an array , "Enter size of the array" and scanf use to scan the "size" then "Enter elements in an array" after enter element , it was excute loop and check the condition "i=size-1; i>=0; i--" the condition was true then it will enter the loop and perform expression "reverse[j] = arr[i]",after perform expression it will print "Reversed array" then excuted the next 'for loop'condition and check the condition and print the "reverse[i]." .

Step 8 : using getch() function to hold the screen.