def select_unassigned_variable(csp: list,
assignment: set,
method=0) -> variable:
"""
csp is the list of variables that are to be selected
method is the method type in which they are selected
0:random #the default option
1:minimum-remaining value
2:minimum-remaining value together with degree
"""
if (method not in range(3)):
return "method out of bounds"
if (method == 0):
y = rdint(0, len(csp) - 1) #rdint is inclusive, hence the -1
var = csp[y]
while (var in assignment):
y = rdint(0, len(csp) - 1) #rdint is inclusive, hence the -1
var = csp[y]
return var
elif (method == 1):
#1:minimum-remaining value
least_domain = math.inf
low_var = None
for var in csp:
if (var not in assignment):
dm_size = var.domain_size()
if (dm_size == 0):
return False
if (dm_size < least_domain):
least_domain = dm_size
low_var = var
return low_var
elif (method == 2):
#2:minimum-remaining value together with degree
#the degree of the node works as a tie breaker, otherwise it works
#just like minimum remaining value
least_domain = math.inf
low_var = None
for var in csp:
if (var not in assignment):
dm_size = var.domain_size()
if (dm_size == 0):
return False
if (dm_size < least_domain):
least_domain = dm_size
low_var = var
elif (dm_size == least_domain
and var.constraint_size() > low_var.constraint_size()):
least_domain = dm_size
low_var = var
return low_var
def getVertifyImg(self):
x_start = 2
y_start = 0
for i in range(self.num):
x = x_start + i * int(self.width / (self.num))
y = rdint(y_start, int(self.height / 3))
self.drawText((x, y), self.get_random_char(),
self.get_random_Color())
self.drawLine(3)
self.drawPoint(60)
return self.img
def dice_throw():
"""Simulates two dice throws.
:return: Random number between 2 and 12
"""
return rdint(1, 6) + rdint(1, 6)
def rotate(self):
deg = int(self.height / 3) # 旋转角度
self.img = self.img.rotate(rdint(0, deg), expand=0)
def get_random_xy(self):
x = rdint(0, int(self.width))
y = rdint(0, int(self.height))
return x, y
def get_random_Color(self):
c1 = rdint(50, 150)
c2 = rdint(50, 150)
c3 = rdint(50, 150)
return c1, c2, c3
#!/usr/bin/python
from random import randint as rdint
nums = [(rdint(0, 100), rdint(0, 100)) for i in range(10)]
print(nums)
def pythagoras(lis):
for i in range(len(lis)):
m, n = lis[i]
a = 2 * m * n
b = m**2 - n**2
c = m**2 + n**2
print("m = %s, n= %s" % (m, n))
print("a = %s, b = %s, c = %s" % (a, b, c))
print("c^2 = a^2 + b^2")
print("%s = %s + %s" % (c**2, a**2, b**2))
print("%s = %s" % (c**2, a**2 + b**2))
print("-" * 10)
return
print(pythagoras(nums))
'''
Built In Modules
São módulos que já vem por padrão no como uma biblioteca integrada do Python.
'''
# https://docs.python.org/3/py-modindex.html #
from random import randint as rdint
print(rdint(0, 10))