Find even or odd parity of a given unsigned number

// parity here means total number of set bits in  a number

typedef int bool ;


int parity ( unsigned int num )
{
    bool parity  = 0 ; // 0 means even parity and 1 meand odd parity
   
    while ( num )
    {
        parity  = !parity ;
        num &= n-1 ;
     }
   
    return parity;
}

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