Exceptional Server in C++ HackerRank Solution

Hello Programmers, In this post, you will know how to solve the Exceptional Server in C++ HackerRank Solution. This problem is a part of the HackerRank C++ Programming Series.

One more thing to add, don’t directly look for the solutions, first try to solve the problems of Hackerrank by yourself. If you find any difficulty after trying several times, then you can look for solutions.

Exceptional Server in C++ HackerRank Solution

Problem

Your friend set up a small computational server that performs complex calculations.
It has a function that takes 2 large numbers as its input and returns a numeric result. Unfortunately, there are various exceptions that may occur during execution.

Complete the code in your editor so that it prints appropriate error messages, should anything go wrong. The expected behavior is defined as follows:

• If the compute function runs fine with the given arguments, then print the result of the function call.
• If it fails to allocate the memory that it needs, print Not enough memory.
• If any other standard C++ exception occurs, print Exception: S where S is the exception’s error message.
• If any non-standard exception occurs, print Other Exception.

Input Format :

The first line contains an integer, T, the number of test cases.
Each of the T subsequent lines describes a test case as 2 space-separated integers, A and B, respectively.

Constraints :

• 1 <= T <= 10^3
• 0 <= A,B <= 2^60

Output Format :

For each test case, print a single line containing whichever message described in the Problem Statement above is appropriate. After all messages have been printed, the locked stub code in your editor prints the server load.

Sample Input :

2
-8 5
1435434255433 5

Sample Output :

Exception: A is negative
Not enough memory
2

Explanation :

-8 is negative, hence ‘Exception: A is negative’ is thrown. Since the second input is too large, ‘not enough memory’ is displayed. 2 is the server load.

Exceptional Server in C++ HackerRank Solution

#include <iostream>
#include <exception>
#include <string>
#include <stdexcept>
#include <vector>
#include <cmath>
using namespace std;
class Server
{
    private:
	    static int load;
    public:
	    static int compute(long long A, long long B)
	    {
		    load += 1;
		    if(A < 0)
		    {
			    throw std::invalid_argument("A is negative");
		    }
		    vector<int> v(A, 0);
		    int real = -1, cmplx = sqrt(-1);
		    if(B == 0) throw 0;
		    real = (A/B)*real;
		    int ans = v.at(B);
		    return real + A - B*ans;
	    }
	    static int getLoad()
	    {
		    return load;
	    }
};
int Server::load = 0;
int main()
{
	int T; cin >> T;
	while(T--) {
		long long A, B;
		cin >> A >> B;
		/* Enter your code here. */
        try
        {
            cout << Server::compute(A, B) << endl;
        }
        catch (std::bad_alloc& error)
        {
            cout << "Not enough memory" << endl;
        }
        catch (std::exception& error)
        {
            cout << "Exception: " << error.what() << endl;
        }
        catch (...)
        {
            cout << "Other Exception" << endl;
        }
        /* ------------*/
	}
	cout << Server::getLoad() << endl;
	return 0;
}

Disclaimer: The above Problem (Exceptional Server in C++ ) is generated by Hackerrank but the Solution is Provided by BrokenProgrammers. This tutorial is only for Educational and Learning purposes.

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