Palindrome String

Decide whether text is a palindrome, considering only letters and digits and ignoring case.

Implement is_palindrome(text).

Input

text: The text to check (ASCII characters).

Output

Return true for a palindrome, otherwise false.

Vincoli

0 ≤ length ≤ 10,000

Esempi

Input:
text = "Racecar"

Output atteso:
expected = True

Input:
std::string text = "Racecar";

Output atteso:
bool expected = true;

Input:
string text = "Racecar";

Output atteso:
bool expected = true;

Input:
text = "hello"

Output atteso:
expected = False

Input:
std::string text = "hello";

Output atteso:
bool expected = false;

Input:
string text = "hello";

Output atteso:
bool expected = false;

Riferimenti

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• UW TCSS 142 Introduction to Programming - master syllabus