Bit Array in C++ – Hacker Rank Solution | HackerRank Programming Solutions | HackerRank C++ Solutions

Hello Programmers/Coders, Today we are going to share solutions of Programming problems of HackerRank of Programming Language C++ . At Each Problem with Successful submission with all Test Cases Passed, you will get an score or marks. And after solving maximum problems, you will be getting stars. This will highlight you profile to the recruiters.

In this post, you will find the solution for Bit Array in C++-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank. If you are not able to solve any problem, then you can take help from our Blog/website.

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Introduction To C++

C++ is a general-purpose programming language that was developed as an enhancement of the C language to include object-oriented paradigm. It is an imperative and a compiled language. 

C++ is a middle-level language rendering it the advantage of programming low-level (drivers, kernels) and even higher-level applications (games, GUI, desktop apps etc.). The basic syntax and code structure of both C and C++ are the same. 

C++ programming language was developed in 1980 by Bjarne Stroustrup at bell laboratories of AT&T (American Telephone & Telegraph), located in U.S.A. Bjarne Stroustrup is known as the founder of C++ language.

Bit Array in C++ - Hackerrank Solution


You are given four integers: N, S, P, Q. You will use them in order to create the sequence a with the following pseudo-code.

a[0] = S (modulo 2^31)
for i = 1 to N-1
    a[i] = a[i-1]*P+Q (modulo 2^31) 

Your task is to calculate the number of distinct integers in the sequence  a.

Input Format :

Four space separated integers on a single line, N, S, P, and Q respectively.

Output Format :

A single integer that denotes the number of distinct integers in the sequence a.

Constraints :

1 <= N <= 10^80 <= S,P,Q <= 2^31

Sample Input :

3 1 1 1

Sample Output :


Explanation :

a = [1,2,3]
Hence, there are  3 different integers in the sequence.

Bit Array in C++ – Hacker Rank Solution
#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;

int main() 
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */  
    /* Bit Array in C++ - Hacker Rank Solution */
    uint_fast64_t po = (uint_fast64_t)(pow(2, 31));
    uint_fast64_t N, S, P, Q;
    cin >> N >> S >> P >> Q;

    bool r = false;
    uint_fast64_t c = 0;
    uint_fast64_t prv = S % po;
    uint_fast64_t crn = -1;
    uint_fast64_t i = 1;

        crn = (prv * P + Q) % po;
        if (crn != prv) 
            prv = crn;
            r = true;
    } while (i < N && !r);
    cout << c + 1 << endl;
    /* Bit Array in C++ - Hacker Rank Solution */
    return 0;

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