C Answers

Write a function countEven(int*, int) which receives an integer array and its size, and returns the number of even numbers in the array.

Write a C program to read two strings and explain string library function.

1)strlen()

 2)strcyp()

 3)strcat()

 4) strcmp()

Your second task is to implement the Insertion Sort algorithm by making a function with the

following prototype;

void insertion_sort(int * ptr_array, int size, int order);

This function takes as input a pointer to the start of the array, and the array size and sorts it in-

place. The last input to the function is the sorting order (0 for ascending and 1 for descending).

Your task is to perform some functions on integer arrays. Specifically you will write a C program

that does the following:

1. Declare an array of size 20.

2. Initialize the array with random values (use loop, and rand() function).

3. Print all the elements in the array.

4. Print all the elements in the array in the reverse order.

5. Print the array such that every Nth element gets printed. N is user input.

Write a program that reads 7 scores as input and outputs the average. The program should use an array of

floats. Note that you need to determine the highest and the lowest score and exclude them in the computation.

Write a program to calculate the factorial of an integer entered by the user using:

a. For loop

b. While loop

c. Do while loop

Write a program to print all even numbers between 0 and an integer number entered by

the user using:

a. For loop

b. While loop

c. Do while loop

Write a program which counts for the number of digits in an integer number being

entered by user using:

a. For loop

b. While loop

c. Do while loop

Write a program in c which counts for the number of digits in an integer number being entered by user using: do While loop

A worker takes a job for 5 days. His pay for the day 1 is Rs. X, for day 2 is Rs. 2X and so on. Develop a C program to find the total salary.