count number of bits set in a number
int count_one (int n)
{
while( n )
{
n = n&(n-1);
count++;
}
return count;
}count number of bits set in a number
int count_one (int n)
{
while( n )
{
n = n&(n-1);
count++;
}
return count;
}bitwise count total set bits
//WAP to find setbits (total 1's in binary ex. n= 5 => 101 => 2 setbits
int count{}, num{};
cin >> num;
while (num > 0) {
count = count + (num & 1); // num&1 => it gives either 0 or 1
num = num >> 1; // bitwise rightshift
}
cout << count; //count is our total setbitsCopyright © 2021 Codeinu
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