increment decrement prefix postfix

#include <stdio.h>
#include <stdlib.h>

// increment decrement prefix postfix

int main()
{
    int a;
    int n = 3;

    printf( "before ( n++ ): n: %d\n", n );

    a = n++;

    printf( "after ( n++ ): a: %d n: %d\n\n", a, n );


    a = 0;
    n = 3;

    printf( "before ( ++n ): n: %d\n", n );

    a = ++n;

    printf( "after ( ++n ): a: %d n: %d\n\n", a, n );


    a = 0;
    n = 3;

    printf( "before ( n-- ): n: %d\n", n );

    a = n--;

    printf( "after ( n-- ): a: %d n: %d\n\n", a, n );


    a = 0;
    n = 3;

    printf( "before ( --n ): n: %d\n", n );

    a = --n;

    printf( "after ( --n ): a: %d n: %d\n\n", a, n );

    return 0;
}

/*
output:

before ( n++ ): n: 3
after ( n++ ): a: 3 n: 4

before ( ++n ): n: 3
after ( ++n ): a: 4 n: 4

before ( n-- ): n: 3
after ( n-- ): a: 3 n: 2

before ( --n ): n: 3
after ( --n ): a: 2 n: 2
*/