Count set bits in an integer c++

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

Bit counting

countBits = (n) => n.toString(2).split("0").join("").length;

Count bits c++

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

Similar codes

-1 vote341 views4 answers
Time complexity analysis of algorithms calculator
C++
0 vote306 views2 answers
Get min and max element index from vector c++
C++
0 vote304 views1 answer
Linq select where string equals "String"
C++
0 vote297 views1 answer
Flake8 max line length
C++
6 votes325 views4 answers
Int to qstring
C++
0 vote315 views1 answer
Udo apt install dotnet-sdk-5 permission denied
C++
0 vote254 views1 answer
Press enter to continue c++
C++
0 vote404 views1 answer
C++ convert const char* to int
C++
0 vote328 views1 answer
Query for rmq using sqrt decomposition
C++
1 vote291 views1 answer
Remove last index of the string in c++
C++