Palindrome check
easy
Read a line. Ignoring case and anything that is not a letter or digit, print true if it reads the same backwards, otherwise false.
Example 1: input
A man, a plan, a canal: Panama
Output
true
Example 2: input
race a car
Output
false
Plus 2 hidden tests when you check your answer.
Your solution
Read from standard input and print the answer. Run it on the examples as often as you like, then check it against every test.
Stuck?
Open hints one at a time. The write-up explains a full solution.
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