Extract Valid JEE Roll Numbers
Extract Valid JEE Roll Numbers
MediumStrings0% accepted
JEE applications include roll numbers in format: 2-letter state code + 4-digit year + 5-digit sequence, all separated by hyphens (e.g., 'UP-2024-12345'). Meera analyzes mixed log files to count valid roll numbers.
Approach
Given a string containing multiple roll numbers and other text, count how many valid roll numbers are present in format XX-YYYY-NNNNN where XX is letters, YYYY is year (2000-2099), NNNNN is digits.
Input
MH-2024-12345 delhi-2023 UP-2024-98765
Output
2
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