Functions in C++ : Hacker Rank Solution : Digit Wood

c++
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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 – , 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

SOLUTION :


#include <iostream>
using namespace std;

int max_of_four(int a, int b, int c, int d) {
    return max(max(a,b),max(c,d));
}

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;
}

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