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count number of set bits C++

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Ugliest Unicorn answered on May 10, 2021 Popularity 10/10 Helpfulness 4/10

answer count number of set bits C++

related Count set bits in an integer c++

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count number of set bits C++

Comment

int hammingWeight(uint32_t n) {
    int count = 0;
    
    while (n) {
        n &= (n - 1);
        count++;
    }
    
    return count;
}

Popularity 10/10 Helpfulness 4/10 Language cpp

Source: Grepper

Tags: c++ count set

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Contributed on Sep 28 2021

Ugliest Unicorn

0 Answers Avg Quality 2/10

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Count set bits in an integer c++

Comment

//Method 1
	int count = __builtin_popcount(number);
//Method 2
	int count = 0;
    while (number) {
        count += number & 1;
        n >>= 1;
    }

Popularity 10/10 Helpfulness 9/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on May 10 2021

BreadCode

0 Answers Avg Quality 2/10

count number of bits set in a number

Comment

    int count_one (int n)
        {
            while( n )
            {
            n = n&(n-1);
               count++;
            }
            return count;
    }

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Source: www.hackerearth.com

Tags: count coun

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Contributed on Aug 13 2021

pecador

0 Answers Avg Quality 2/10

count set bits of number in cpp

Comment

#include <iostream>

// Function to count the total number of set bits in a number
int countSetBits(int n) {
    int count = 0;
  
    while (n != 0) {
        // Increment count if the least significant bit is set (i.e., equal to 1)
        count += n & 1;
      
        // Right-shift the number by 1 to check the next bit
        n >>= 1;
    }
  
    return count;
}

int main() {
    int num = 123; // Replace 123 with the desired number
  
    int setBits = countSetBits(num);
  
    std::cout << "Total set bits in " << num << ": " << setBits << std::endl;
  
    return 0;
}

Popularity 7/10 Helpfulness 2/10 Language cpp

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

count bits c++

Comment

-1

//Method 1
   int count = 0;
   while (n)
   {
        count++;
        n >>= 1;
    }
//Method 2
	int count = (int)log2(number)+1;

Popularity 9/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on May 10 2021

BreadCode

0 Answers Avg Quality 2/10

count number of set bits C++

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count number of set bits C++

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Count set bits in an integer c++

count number of bits set in a number

count set bits of number in cpp

count bits c++

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