- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Count all prefixes of the given binary array which are divisible by x in C++
In this tutorial, we will be discussing a program to find the number of prefixes of the binary array which are divisible by x.
For this we will be provided with binary array and a value x. Our task is to find the number of elements whose prefixes are divisible by given value x.
Example
#include <bits/stdc++.h>
using namespace std;
//counting the elements with prefixes
//divisible by x
int count_divx(int arr[], int n, int x){
int number = 0;
int count = 0;
for (int i = 0; i < n; i++) {
number = number * 2 + arr[i];
//increasing count
if ((number % x == 0))
count += 1;
}
return count;
}
int main(){
int arr[] = { 1, 0, 1, 0, 1, 1, 0 };
int n = sizeof(arr) / sizeof(arr[0]);
int x = 2;
cout << count_divx(arr, n, x);
return 0;
}Output
3
Updated on 17-Feb-2020 10:40:52
- Related Questions & Answers
- Count the number of elements in an array which are divisible by k in C++
- Count numbers which are divisible by all the numbers from 2 to 10 in C++
- Count numbers in range 1 to N which are divisible by X but not by Y in C++
- Count all 0s which are blocked by 1s in binary matrix in C++
- Sum of first N natural numbers which are divisible by X or Y
- Count numbers in a range that are divisible by all array elements in C++
- Count all prefixes in given string with greatest frequency using Python
- Program to count number of trailing zeros of minimum number x which is divisible by all values from 1 to k in Python
- Find elements of an array which are divisible by N using STL in C++
- Product of all the elements in an array divisible by a given number K in C++
- Maximize the number of sum pairs which are divisible by K in C++
- Count all sub-arrays having sum divisible by k
- Count numbers in range that are divisible by all of its non-zero digits in C++
- Count n digit numbers divisible by given number in C++
- Golang Program to Find the Numbers which are Divisible by 7 and Multiple of 5 in a Given Range
Advertisements