Write a C program that takes three integers as input from the user and performs the following operations using expressions. The program should then print the results of each operation:

$1.$Sum of the three integers.

$2.$Average of the three integers $($as a float$).$

$3.$The largest of the three integers using conditional expressions.

$4.$Check if the sum of the three integers is even or odd using a conditional expression.

$5.$Check if all three integers are positive using logical operators.

Sample Input:

Enter the first integer: $10$

Enter the second integer: $3$

Enter the third integer: $7$

Output:

Sum: $20$

Average: $6\mathrm{.}67$

Largest: $10$

The sum is even

All integers are postitve