def sample(arr, n, unique=False):
if unique:
arr = set(arr)
assert len(arr) > n, "Cannot sample uniquely from a small array."
if len(arr) == n:
return arr
if n > len(arr) / 2:
res = list(arr)
while len(res) > n:
del res[random.randint(0, len(res))]
else:
res = []
arr = list(arr)
while len(res) < n:
i = random.randint(0, len(arr))
res.append(arr[i])
del arr[i]
else:
return [arr[i] for i in random.randints(0, len(arr), n)]
def sample(arr, n, unique=False):
if unique:
arr = set(arr)
assert len(arr) > n, "Cannot sample uniquely from a small array."
if len(arr) == n:
return arr
if n > len(arr) / 2:
res = list(arr)
while len(res) > n:
del res[random.randint(0, len(res))]
else:
res = []
arr = list(arr)
while len(res) < n:
i = random.randint(0, len(arr))
res.append(arr[i])
del arr[i]
else:
return [arr[i] for i in random.randints(0, len(arr), n)]
def randint(s, e):
"""
returns one random integer between s and e. Try using @randints in case you need
multiple random integer. @randints is more efficient
"""
return random.randints(s, e, 1)[0]
def randint(s, e):
"""
returns one random integer between s and e. Try using @randints in case you need
multiple random integer. @randints is more efficient
"""
return random.randints(s, e, 1)[0]