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

void TestFnc1( unsigned int n )
{
    printf("Test1, n=%d\n", n );

    unsigned int counter = 0;

    for ( unsigned int i = 0; i < n; ++i )
    {
        if ( i == 0 )
        {
            printf("First\n");
        }
        else if ( i == n - 1 )
        {
            printf("Last\n");
        }
        else
        {
            printf("Iteration: %d\n", i + 1 );
        }

        counter++;
    }

    printf("Counter: %d\n\n", counter );

}

void TestFnc2( unsigned int n )
{
    printf("Test2, n=%d\n", n );

    unsigned int counter = 0;

    for ( unsigned int i = 0; i < n; ++i )
    {

        if ( i == 0 )
        {
            if ( n == 1 )
            {
                printf("Only one\n");
            }
            else
            {
                printf("First\n");
            }
        }
        else if ( i == n - 1 )
        {
            printf("Last\n");
        }
        else
        {
            printf("Iteration: %d\n", i + 1 );
        }

        counter++;
    }

    printf("Counter: %d\n\n", counter );
}

int main()
{

    TestFnc1( 5 );
    TestFnc1( 3 );
    TestFnc1( 2 );
    TestFnc1( 1 );
    TestFnc1( 0 );

    TestFnc2( 5 );
    TestFnc2( 3 );
    TestFnc2( 2 );
    TestFnc2( 1 );
    TestFnc2( 0 );

    return 0;
}

/*
output:

Test1, n=5
First
Iteration: 2
Iteration: 3
Iteration: 4
Last
Counter: 5

Test1, n=3
First
Iteration: 2
Last
Counter: 3

Test1, n=2
First
Last
Counter: 2

Test1, n=1
First
Counter: 1

Test1, n=0
Counter: 0

Test2, n=5
First
Iteration: 2
Iteration: 3
Iteration: 4
Last
Counter: 5

Test2, n=3
First
Iteration: 2
Last
Counter: 3

Test2, n=2
First
Last
Counter: 2

Test2, n=1
Only one
Counter: 1

Test2, n=0
Counter: 0

*/