def __init__(self, n, failureProb = 1e-5):
#total size of bit array
self.n = n
self.m = nextPrime((int)(-n * log(failureProb) / (log(2)**2)))
self.filter = bitarray()
self.filter.append(False)
self.filter = self.m * self.filter
self.k = (int)(self.m*(log(2))/self.n)
seed()
self.hashes = [(randint(0,self.m-1),randint(0,self.m-1)) for i in range(0,self.k)]
def __init__(self, n, failureProb=1e-5):
#total size of bit array
self.n = n
self.m = nextPrime((int)(-n * log(failureProb) / (log(2)**2)))
self.filter = bitarray()
self.filter.append(False)
self.filter = self.m * self.filter
self.k = (int)(self.m * (log(2)) / self.n)
seed()
self.hashes = [(randint(0, self.m - 1), randint(0, self.m - 1))
for i in range(0, self.k)]
#!/usr/bin/python
# https://projecteuler.net/problem=7
import primes
target = 10001
val=2
for i in range(1,target):
val = primes.nextPrime(val)
print val
#!/usr/bin/python
# https://projecteuler.net/problem=3
import primes
target = 13195
target = 600851475143
factor = 2
while target>1:
if target%factor==0:
target/=factor
else:
factor = primes.nextPrime(factor)
print factor
def successors((primeset, newprime)):
nextprime = nextPrime(newprime) #primes(newprime).next()
succs = [(primeset, nextprime)]
if compatible(primeset, newprime):
succs.append((primeset+[newprime], nextprime))
return succs