# Status Problem Level Completes Likes
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Check If Student is eligible for an Attendance Reward

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Random character in a given string - Java

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Minimum Deletions to make the occurrence of each character unique.

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Compare two version numbers of a software

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Minimum number of times String A is repeated to such that B is substring of A

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Find Lexicographically smallest or largest substring of size k

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Largest word in dictionary by removing a few characters from the given string

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Check if one string is a subsequence of another string.

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Lexicographically previous permutation With One swap

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Hamming Distance between two given strings

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Find the maximum number present in a String

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Convert Prefix to Postfix Expression

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Convert Postfix to Prefix Expression

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Convert Integer to Roman

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String to Integer (AtoI - ASCII to Integer) - Recursive Solution

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Longest contiguous character in a given String - O(N) Solution

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Convert Postfix to Infix Expression

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String to Integer (AtoI - ASCII to Integer)

Beginner % 1
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Longest substring with at most two unique characters

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Convert Infix to Prefix Expression

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Find duplicates Characters in the given String

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Convert Infix to Postfix Expression

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Evaluation of Infix expressions

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Convert Prefix to Infix Expression

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Infix, Postfix and Prefix Notations/Expressions

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Valid Multiple Parentheses

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Valid Brackets – Part 2 | Stack Method

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Given two strings validate the output string

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Generate all the strings of length n from 0 to k-1.

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Find Largest and Smallest word in a given String

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Reverse the given String using Stack

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Check if two Strings are equal without using built-in function - Java

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Remove Vowels from a given String

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Find number of Distinct Permutations of a String

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Check If Student is eligible for an Attendance Reward

Random character in a given string - Java

Minimum Deletions to make the occurrence of each character unique.

Compare two version numbers of a software

Minimum number of times String A is repeated to such that B is substring of A

Find Lexicographically smallest or largest substring of size k

Largest word in dictionary by removing a few characters from the given string

Check if one string is a subsequence of another string.

Lexicographically previous permutation With One swap

Hamming Distance between two given strings

Find the maximum number present in a String

Convert Prefix to Postfix Expression

Convert Postfix to Prefix Expression

Convert Integer to Roman

String to Integer (AtoI - ASCII to Integer) - Recursive Solution

Longest contiguous character in a given String - O(N) Solution

Convert Postfix to Infix Expression

String to Integer (AtoI - ASCII to Integer)

Longest substring with at most two unique characters

Convert Infix to Prefix Expression

Find duplicates Characters in the given String

Convert Infix to Postfix Expression

Evaluation of Infix expressions

Convert Prefix to Infix Expression

Infix, Postfix and Prefix Notations/Expressions

Valid Multiple Parentheses

Valid Brackets – Part 2 | Stack Method

Given two strings validate the output string

Generate all the strings of length n from 0 to k-1.

Find Largest and Smallest word in a given String

Reverse the given String using Stack

Check if two Strings are equal without using built-in function - Java

Remove Vowels from a given String

Find number of Distinct Permutations of a String