HackerRank Day 17 : More Exceptions 30 days of code solution

Today we are going to solve HackerRank Day 17 : More Exceptions 30 days of code solution 30 days of code solution in C, C++, Java, Python & Javascript.

Objective

Yesterday’s challenge taught you to manage exceptional situations by using try and catch blocks. In today’s challenge, you will practice throwing and propagating an exception.

Task

Write a Calculator class with a single method: int power(int, int). The power method takes two integers, n and p, as parameters and returns the integer result of n^p. If either n or p is negative, then the method must throw an exception with the message: n and p should be non-negative.

Note: Do not use an access modifier (e.g.: public) in the declaration for your Calculator class.

Input Format

Input from stdin is handled for you by the locked stub code in your editor. The first line contains an integer, , the number of test cases. Each of the T subsequent lines describes a test case in 2 space-separated integers that denote n and p, respectively.

Constraints

• No Test Case will result in overflow for correctly written code.

Output Format

Output to stdout is handled for you by the locked stub code in your editor. There are T lines of output, where each line contains the result of n^p as calculated by your Calculator class’ power method.

Sample Input

4
3 5
2 4
-1 -2
-1 3

Sample Output

243
16
n and p should be non-negative
n and p should be non-negative

Explanation

T = 4
T₀: 3 and 5 are positive, so power returns the result of 3⁵, which is 243.
T₁: 2 and 4 are positive, so power returns the result of 2⁴ =, which is 16.
T₂: Both inputs (-1 and -2) are negative, so power throws an exception and n and p should be non-negative is printed.
T₃: One of the inputs (-1) is negative, so power throws an exception and n and p should be non-negative is printed.

HackerRank Day 17 : More Exceptions 30 days of code solution

More Exceptions HackerRank Solution in C++

//Write your code here 
//CODINGWITHNICK


class Calculator {
    public:
        int power(int n, int p){
            if(n < 0 || p < 0){
                throw invalid_argument("n and p should be non-negative"); 
            }
            
            return pow(n, p);
        }
};

More Exceptions HackerRank Solution in Java

class Calculator{
    public int power(int n, int p) throws Exception{
        if(n < 0 || p < 0){
            throw new Exception("n and p should be non-negative");
        }
        return (int)Math.pow(n,p);
    }
}

#Write your code here
#CODINGWITHNICK


class Calculator:

    def power(self,n, p):
        if n < 0 or p < 0:
            raise Exception("n and p should be non-negative")
        else:
            return pow(n,p)

//Write your code here
//CODINGWITHNICK
function Calculator() {
    this.power = function(n, p) {
        if (n < 0 || p < 0)
            throw "n and p should be non-negative";
            
        var ans = 1;
        for (i = 0; i < p; i++) {
            ans *= n;
        }
        
        return ans;
    }
}

NEXT : Hackerrank Day 18 : Queues and Stacks 30 days of code solution

30 Days of Code HackerRank Solutions List – Day 0 to Day 29

Read More –

• How To Create Responsive Image Gallery Using Html & Css
• Create a Quiz App using HTML CSS & JavaScript
• Product Landing Page Using Html Css Bootstrap
• Home Page With Image Gallery Website Using Html Css Js Bootstrap4
• How create an Complete Responsive Ecommerce Website Using Html Css Js & Bootstrap