Assuming var1 has value 20. What will following code print?

1.3 Assuming var1 has value 20. What will following code print?Printf(“%d %d\n”, var1–, ++var1);A) 20 20B) 19 20C) 20 21D) 21 22

b) Draw a flow chart and then write a ‘C’ program to generate first 15 members of the followingsequence.1, 3, 4, 7, 11, 18, 29, …

a) Develop an algorithm to do the following:Read an array of 20 elements and then send all negative elements of the array to theend without altering the original sequence.

a) If a pointer is an address, what does the expression like p + j mean?

c) Write a ‘C’ function that returns the k-th digit from the right in the positive integer n. Forexample, digit(829,1) returns 9, digit(829,3) returns 8. If k is greater than the number ofdigits in n then the function is to return –1. Include appropriate documentation in yourprogram.