Question

#This program tends to test for a palindrome iteratively. Please help find buG.

def tester():
z = list('malyaylam')
count = 0
for i in range(0, int(len(z)/2)+1):
if z[i] == z[-i-1] and i <= int(len(z)/2):
count += i
if count == int(len(z)/2):
print 'Congo u ve just found a Palindrome!'
else: pass
else: 'test failed!'


tester()

Answer 1

1. "else: pass" is not necessary.
2. I think you have indentation problems with your second if and both else statements.
3. Add a bunch of print statements to make sure variables are doing what you think they're doing.
4. Reread each line carefully. One line in particular has a pretty obvious problem.

Explain in words what you want the algorithm to do.

Answer 2

pls use a code pasting site to post your code, it makes it easier for us to comment. http://dpaste.com/641394/

Answer 3

fixed tester() , by changing count += i to count += 1.
here's improved code:
http://dpaste.com/641531/

Answer 4

#Palindrome Iterative Style.

def listmaker(L):
global z
z = list(L)

def caller():
global x
x = raw_input('Enter the string for checking. ')
listmaker(x)
tester()

def tester():
count = 0
for i in range(0, int(len(z)/2)+1):
if z[i] == z[-i-1] and i <= int(len(z)/2):
count += 1
if count == int(len(z)/2):
print x, 'Is a Palindrome!'
break
else: print x, 'is not a palindrome...'

caller()