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Python is a widely-used, interpreted, object-oriented, and high-level programming language with dynamic semantics, used for general-purpose programming. It was created by Guido van Rossum, and first released on February 20, 1991.
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Link for the Problem – Incorrect Regex in Python – HackerRank Solution
Incorrect Regex in Python – HackerRank Solution
Problem:
You are given a string .
Your task is to find out whether is a valid regex or not.
Input Format
The first line contains integer , the number of test cases.
The next lines contains the string .
Constraints
Output Format
Print “True” or “False” for each test case without quotes.
Sample Input
2 .*\+ .*+
Sample Output
True False
Explanation
.*\+ : Valid regex.
.*+: Has the error multiple repeat. Hence, it is invalid.
Incorrect Regex in Python – HackerRank Solution
import re;
N = int(input())
for _ in range(N):
try:
re.compile(input())
Output = True
except re.error:
Output = False
print(Output)
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