69. Palindrome String
Core1000 ms256 MBSolved by 0%
Read one line and print Yes if it reads the same forwards and backwards,
or No otherwise.
Ignore case, spaces and punctuation, compare only the letters and digits. So
A man, a plan, a canal: Panama is a palindrome.
Constraints - The line has between 1 and 100000 characters. - Printable ASCII only.
Input
A single line of text.
Output
Print exactly one word: Yes or No.
Inputracecar
OutputYes
Noteis a simple palindrome
InputA man, a plan, a canal: Panama
OutputYes
Noteis a palindrome only once case and punctuation are ignored
Hints
Four rungs, in order. The last two open once you have submitted an attempt. A wrong one counts.
Hint 1Where to start
Hint 2The approachOpen hint 1 first. This one carries on from it.
Hint 3PseudocodeOpen hint 2 first. This one carries on from it.
Hint 4Full solutionOpen hint 3 first. This one carries on from it.