Please answer all the questions. its simple. Only C language required.

1. Write a code which calculates the average of odd numbers from 1 to 50 using if condition
2. Correct the given code:

Task: We want to input 5 values in the array

int a[5], i;

for (i = 1, i <= 5, i++){

scanf ("%d", a[i]);

printf ("%d", a[i]);}

}

3. Give function prototype for each of following functions:

1. Function printdata that takes two arguments one float type name amount, and another is value of integer type and returns floating point result.
2. Function Change that takes two arguments one integer type array, and another is size of integer type and returns nothing.