# Functions in C++ Hacker Rank Solution

Hello coders, In this post, you will learn how to solve the Functions in C++ Hacker Rank Solution. This problem is a part of the HackerRank C++ Programming Series.

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## Functions in C++ Hacker Rank Solution

### Problem

Functions are a bunch of statements glued 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;
}
```

You have to 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.

```+= : 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;
```

#### Input Format

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

#### Output Format

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

```3
4
6
5
```

`6`

### Functions in C++ Hacker Rank Solution

```#include
using namespace std;
int max_of_four(int a,int b,int c,int d)
{
int max = 0;
if(a>=b && a>=c && a>=d)
{
max = a;
}
else if(b>=a && b>=c && b>=d)
{
max = b;
}
else if(c>=a && c>=b && c>=d)
{
max = c;
}
else
{
max = d;
}
return max;
}
int main() {
int a, b, c, d;
cin>>a>>b>>c>>d;
int ans = max_of_four(a, b, c, d);
cout<<ans;
return 0;
}```

Disclaimer: The above Problem (Functions in C++ – Hacker Rank Solution) is generated by Hackerrank but the Solution is Provided by Chase2Learn. This tutorial is only for Educational and Learning purposes. Authority if any of the queries regarding this post or website fill the following contact form thank you.

### FAQ:

#### Is HackerRank good for beginners?

HackerRank is very good for beginners so even if you want to print your first program “Hello World!” then definitely HackerRank gives this opportunity to you. It has a pretty good UI with boilerplate code pre-written that helps beginners to start competitive coding.

#### What is meant by HackerRank?

HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses. Developers compete by writing programs according to provided specifications. Wikipedia

#### What is C++ programming used for?

C++ is a general-purpose programming language created by Danish computer scientist Bjarne Stroustrup as an extension of the C programming language, or “C with Classes”. Wikipedia

#### Where can I find HackerRank solutions in CPP?

in this post you will get all the solutions of HackerRank CPP Problems.

Finally, we are now, in the end, I just want to conclude some important message for you

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