//returns the bit value of n on the p position
int seeBit(int n, unsigned int p)
{
    //n(2) = Bn/Bn-1/Bn-2/.../B2/B1/B0
    if(n & (1 << p))
        return 1;
    else return 0;
}

//sets the p bit on or off
void setBit(int *n, unsigned int p, unsigned int status)
{
    if(status)
        *n |= (1 << p);
    else
        *n &= ~(1 << p);
}

//negates the p bit
void invBit(int *n, unsigned int p)
{
    (*n) ^= (1 << p);
}