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Functions in C HackerRank Solution

Hello Friends in this article i am gone to share Hackerrank C programming Solutions with you. | Functions in C Hackerrank Solution


In this challenge, you will learn simple usage of functions in C. Functions are a bunch of statements grouped together. A function is provided with zero or more arguments, and it executes the statements on it. Based on the return type, it either returns nothing (void) or something.

A sample syntax for a function is

return_type function_name(arg_type_1 arg_1, arg_type_2 arg_2, ...) {
[if return_type is non void]
return something of type `return_type`;

For example, a function to read four variables and return the sum of them can be written as

int sum_of_four(int a, int b, int c, int d) {
int sum = 0;
sum += a;
sum += b;
sum += c;
sum += d;
return sum;
+= : Add and assignment operator. It adds the right operand to the left operand and assigns the result to the left operand.

a += b is equivalent to a = a + b;


Write a function int max_of_four(int a, int b, int c, int d) which reads four arguments and returns the greatest of them.


There is not built in max function in C. Code that will be reused is often put in a separate function, e.g. int max(x, y) that returns the greater of the two values.

Input Format

Input will contain four integers – a,b,c,d, one on each line.

Output Format

Print the greatest of the four integers.
Note: I/O will be automatically handled.

Sample Input


Sample Output



Hackerrank C programming Solutions

Functions in C Hackerrank Solution

#include <stdio.h>
/* Add `int max_of_four(int a, int b, int c, int d)` here. */

int max_of_four(int a,int b,int c,int d){
if(a>b && a>c && a>d) return a;
else if(b>c && b>d) return b;
else if(c>d) return c;
else return d;

int main() {
int a, b, c, d;
scanf("%d %d %d %d", &a, &b, &c, &d);
int ans = max_of_four(a, b, c, d);
printf("%d", ans);

return 0;

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