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Categories >> Code-Snippets >> Programming-Code >> C-Code
 
 
 
Question
Give a very good method to count the number of ones in a 32
bit number.
(caution: looping through testing each bit is not a solution)
 Question Submitted By :: =-PKG-=
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Answer
static void NumOfOnes(uint n)
{
    int c = 0;
    for (int i=0; i<10; i++)
    {
        if ((n & (int)Math.Pow(2, i)) == (int)Math.Pow(2, 
i))
        {
            c++;
        }
    }
    Console.WriteLine("{0}", c);
}
 
0
Pgmrsf
 
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