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C# program to count total set bits in a number
The number for our example is 11 i.e. binary −
1101
The total set bits are 3 in 1101; to find it, use a loop till it’s not equal to 0. Here, our num is 11 i.e. decimal −
while (num>0) { cal += num & 1; num >>= 1; }
Example
To count total set bits in a number, use the following code.
using System; public class Demo { public static void Main() { int cal = 0; // Binary is 1011 int num = 11; while (num>0) { cal += num & 1; num >>= 1; } // 1 bits in 1101 are 3 Console.WriteLine("Total bits: "+cal); } }
Output
Total bits: 3
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