Algorithm


Problem Name: Functions

Problem Link: https://www.hackerrank.com/challenges/playing-with-characters/problem?isFullScreen=true

In this HackerRank Functions in C++ programming problem solution,

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.

The 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 return the sum of four parameters 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;
}

 


 

Write a function int max_of_four(int a, int b, int c, int d) which returns the maximum of the four arguments it receives.

 

+= : 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 per line.

Output Format

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

Sample Input

3
4
6
5

Sample Output

6

 

 

 

Code Examples

#1 Code Example with C++ Programming

Code - C++ Programming


#include <iostream>
#include <cstdio>
using namespace std;

int max_of_four(int a, int b, int c, int d);

int main(void)
{
    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\n", ans);

    return 0;
}

int max_of_four(int a, int b, int c, int d)
{
    if(a >= b && a >= c && a >= d)
        return a;
    else if(b >= a && b >= c && b >= d)
        return b;
    else if(c >= b && c >= a && c >= d)
        return c;
    else
        return d;
}
Copy The Code & Try With Live Editor

Input

x
+
cmd
3 4 6 5

Output

x
+
cmd
6
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Demonstration


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