EPAM Systems LeetCode interview questions

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Problem	Difficulty	Frequency	Acceptance
Two Sum Array Hash Table EASY	Easy	100.0%	0.6%
Move Zeroes Array Two Pointers EASY	Easy	95.1%	0.6%
Longest Substring Without Repeating Characters Hash Table String Sliding Window MEDIUM	Medium	93.2%	0.4%
Minimum Operations to Make a Uni-Value Grid Array Math Sorting +1 MEDIUM	Medium	86.3%	0.7%
Group Anagrams Array Hash Table String +1 MEDIUM	Medium	83.5%	0.7%
Valid Parentheses String Stack Bracket Sequences EASY	Easy	80.3%	0.5%
Merge Sorted Array Array Two Pointers Sorting EASY	Easy	80.3%	0.6%
Longest Palindromic Substring Two Pointers String Dynamic Programming +1 MEDIUM	Medium	76.7%	0.4%
Best Time to Buy and Sell Stock Array Dynamic Programming EASY	Easy	76.7%	0.6%
Longest Common Prefix Array String Trie EASY	Easy	76.7%	0.5%
Valid Anagram Hash Table String Sorting EASY	Easy	72.3%	0.7%
Rotate Array Array Math Two Pointers MEDIUM	Medium	72.3%	0.5%
Reverse Vowels of a String Two Pointers String EASY	Easy	72.3%	0.6%
Decode Ways String Dynamic Programming MEDIUM	Medium	72.3%	0.4%
First Unique Character in a String Hash Table String Queue +1 EASY	Easy	67.0%	0.7%
Max Consecutive Ones III Array Binary Search Sliding Window +1 MEDIUM	Medium	67.0%	0.7%
3Sum Array Two Pointers Sorting MEDIUM	Medium	60.2%	0.4%
Trapping Rain Water Array Two Pointers Dynamic Programming +2 HARD	Hard	60.2%	0.7%
Reverse Integer Math MEDIUM	Medium	60.2%	0.3%
String Compression Two Pointers String MEDIUM	Medium	60.2%	0.6%

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