I was trying Problem 4 on Project Euler when I ran into a problem. Here is my code.
def Problem4():
x = 100
y = 909
a = []
b = []
x1 = []
y1 = []
while y < 1000:
while x < 1000:
z = x*y
if str(z) == str(z)[::-1]:
a.append(z)
x1.append(x)
y1.append(y)
else:
b.append(z)
x = x + 1
y = y + 1
print(a)
print(x1)
print(y1)
Problem4()
This code runs okay, but the value of y remains constant, even after the y = y + 1
. Why is it doing that? Is there a better way of doing this.
move the x = 100
line to the position between first while loop and the second while loop would solve your problem.
def Problem4():
y = 909
a = []
b = []
x1 = []
y1 = []
while y < 1000:
x = 100
while x < 1000:
z = x*y
if str(z) == str(z)[::-1]:
a.append(z)
x1.append(x)
y1.append(y)
else:
b.append(z)
x = x + 1
y = y + 1
print(a)
print(x1)
print(y1)
Problem4()