| Find Most Frequent Vowel and Consonant |
Easy
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| Find Products with Three Consecutive Digits |
Easy
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| Find Products with Valid Serial Numbers |
Easy
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| Find Special Substring of Length K |
Easy
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| Find Valid Emails |
Easy
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| Find Valid Pair of Adjacent Digits in String |
Easy
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| Fruits Into Baskets II |
Easy
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| Substring Matching Pattern |
Easy
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| Sum of Variable Length Subarrays |
Easy
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| Transform Array by Parity |
Easy
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| Transformed Array |
Easy
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| Unique 3-Digit Even Numbers |
Easy
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| Zigzag Grid Traversal With Skip |
Easy
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