Dashboard Questions Topics Companies Sheets

String

Topic

744 coding problems covering String concepts. Master this topic and improve your problem-solving skills.

744

Problems

214

Easy

369

Medium

161

Hard

Difficulty

All744 Easy214 Medium369 Hard161

Title	Solve	Difficulty	Companies	Topics
2311. Longest Binary Subsequence Less Than or Equal to K	Solve	Medium	Amazon+1	Dynamic Programming Greedy+2
2315. Count Asterisks	Solve	Easy	Amazon+1	String
2325. Decode the Message	Solve	Easy	Coinbase	Hash Table String
2330. Valid Palindrome IV	Solve	Medium	Amazon	String Two Pointers
2337. Move Pieces to Obtain a String	Solve	Medium	Amazon+1	String Two Pointers
2343. Query Kth Smallest Trimmed Number	Solve	Medium	DE Shaw	Array Divide and Conquer+5
2351. First Letter to Appear Twice	Solve	Easy	Google	Bit Manipulation Counting+2
2370. Longest Ideal Subsequence	Solve	Medium	MakeMyTrip	Dynamic Programming Hash Table+1
2375. Construct Smallest Number From DI String	Solve	Medium	Amazon+1	Backtracking Greedy+2
2379. Minimum Recolors to Get K Consecutive Black Blocks	Solve	Easy	DailyHunt	Sliding Window String
2380. Time Needed to Rearrange a Binary String	Solve	Medium	Amazon+1	Dynamic Programming Simulation+1
2381. Shifting Letters II	Solve	Medium	Veritas	Array Prefix Sum+1
2384. Largest Palindromic Number	Solve	Medium	Adobe+3	Counting Greedy+2
2390. Removing Stars From a String	Solve	Medium	Amazon	Simulation Stack+1
2391. Minimum Amount of Time to Collect Garbage	Solve	Medium	Microsoft	Array Prefix Sum+1
2399. Check Distances Between Same Letters	Solve	Easy	-	Array Hash Table+1
2405. Optimal Partition of String	Solve	Medium	Amazon+1	Greedy Hash Table+1
2408. Design SQL	Solve	Medium	Amazon	Array Design+2
2409. Count Days Spent Together	Solve	Easy	-	Math String
2414. Length of the Longest Alphabetical Continuous Substring	Solve	Medium	TikTok	String
2416. Sum of Prefix Scores of Strings	Solve	Hard	Facebook+1	Array Counting+2
2418. Sort the People	Solve	Easy	Adobe+2	Array Hash Table+2
2423. Remove Letter To Equalize Frequency	Solve	Easy	Bloomberg+1	Counting Hash Table+1
2430. Maximum Deletions on a String	Solve	Hard	DE Shaw	Dynamic Programming Hash Function+3
2434. Using a Robot to Print the Lexicographically Smallest String	Solve	Medium	Amazon	Greedy Hash Table+2
2437. Number of Valid Clock Times	Solve	Easy	Google	Enumeration String
2446. Determine if Two Events Have Conflict	Solve	Easy	Goldman Sachs+1	Array String
2450. Number of Distinct Binary Strings After Applying Operations	Solve	Medium	Microsoft	Math String
2451. Odd String Difference	Solve	Easy	Visa	Array Hash Table+1
2452. Words Within Two Edits of Dictionary	Solve	Medium	Facebook+1	Array String
2456. Most Popular Video Creator	Solve	Medium	TikTok	Array Hash Table+3
2468. Split Message Based on Limit	Solve	Hard	Capital One+3	Binary Search String
2472. Maximum Number of Non-overlapping Palindrome Substrings	Solve	Hard	LinkedIn+2	Dynamic Programming Greedy+2
2478. Number of Beautiful Partitions	Solve	Hard	Google	Dynamic Programming String
2483. Minimum Penalty for a Shop	Solve	Medium	Stripe	Prefix Sum String
2484. Count Palindromic Subsequences	Solve	Hard	Atlassian+2	Dynamic Programming String
2486. Append Characters to String to Make Subsequence	Solve	Medium	Amazon	Greedy String+1
2489. Number of Substrings With Fixed Ratio	Solve	Medium	Intuit	Hash Table Math+2
2490. Circular Sentence	Solve	Easy	-	String
2496. Maximum Value of a String in an Array	Solve	Easy	-	Array String
2506. Count Pairs Of Similar Strings	Solve	Easy	Oracle	Array Bit Manipulation+3
2512. Reward Top K Students	Solve	Medium	Amazon+1	Array Hash Table+3
2514. Count Anagrams	Solve	Hard	Mathworks	Combinatorics Counting+3
2515. Shortest Distance to Target String in a Circular Array	Solve	Easy	Bloomberg	Array String
2516. Take K of Each Character From Left and Right	Solve	Medium	-	Hash Table Sliding Window+1
2522. Partition String Into Substrings With Values at Most K	Solve	Medium	-	Dynamic Programming Greedy+1
2531. Make Number of Distinct Characters Equal	Solve	Medium	Google	Counting Hash Table+1
2539. Count the Number of Good Subsequences	Solve	Medium	Oracle+1	Combinatorics Counting+3
2546. Apply Bitwise Operations to Make Strings Equal	Solve	Medium	Sprinklr	Bit Manipulation String
2559. Count Vowel Strings in Ranges	Solve	Medium	PayPal	Array Prefix Sum+1