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
2114. Maximum Number of Words Found in Sentences	Solve	Easy	Google	Array String
2115. Find All Possible Recipes from Given Supplies	Solve	Medium	Amazon+5	Array Graph+3
2116. Check if a Parentheses String Can Be Valid	Solve	Medium	Amazon	Greedy Stack+1
2120. Execution of All Suffix Instructions Staying in a Grid	Solve	Medium	-	Simulation String
2124. Check if All A's Appears Before All B's	Solve	Easy	Microsoft	String
2125. Number of Laser Beams in a Bank	Solve	Medium	Amazon	Array Math+2
2129. Capitalize the Title	Solve	Easy	-	String
2131. Longest Palindrome by Concatenating Two Letter Words	Solve	Medium	Amazon+3	Array Counting+3
2135. Count Words Obtained After Adding a Letter	Solve	Medium	Amazon+1	Array Bit Manipulation+3
2138. Divide a String Into Groups of Size k	Solve	Easy	Canonical	Simulation String
2147. Number of Ways to Divide a Long Corridor	Solve	Hard	Google+1	Dynamic Programming Math+1
2156. Find Substring With Given Hash Value	Solve	Hard	-	Hash Function Rolling Hash+2
2157. Groups of Strings	Solve	Hard	Lowe	Bit Manipulation String+1
2166. Design Bitset	Solve	Medium	Bloomberg	Array Design+2
2167. Minimum Time to Remove All Cars Containing Illegal Goods	Solve	Hard	Google	Dynamic Programming String
2168. Unique Substrings With Equal Digit Frequency	Solve	Medium	Expedia	Counting Hash Function+3
2182. Construct String With Repeat Limit	Solve	Medium	Arista Networks	Counting Greedy+3
2185. Counting Words With a Given Prefix	Solve	Easy	Google	Array String+1
2186. Minimum Number of Steps to Make Two Strings Anagram II	Solve	Medium	Wealthfront	Counting Hash Table+1
2193. Minimum Number of Moves to Make Palindrome	Solve	Hard	Amazon+2	Binary Indexed Tree Greedy+2
2194. Cells in a Range on an Excel Sheet	Solve	Easy	Amazon	String
2207. Maximize Number of Subsequences in a String	Solve	Medium	Amazon	Greedy Prefix Sum+1
2209. Minimum White Tiles After Covering With Carpets	Solve	Hard	Google	Dynamic Programming Prefix Sum+1
2211. Count Collisions on a Road	Solve	Medium	Arcesium	Simulation Stack+1
2213. Longest Substring of One Repeating Character	Solve	Hard	Pickrr	Array Ordered Set+2
2222. Number of Ways to Select Buildings	Solve	Medium	Amazon	Dynamic Programming Prefix Sum+1
2223. Sum of Scores of Built Strings	Solve	Hard	Amazon	Binary Search Hash Function+4
2224. Minimum Number of Operations to Convert Time	Solve	Easy	Google	Greedy String
2227. Encrypt and Decrypt Strings	Solve	Hard	Duolingo	Array Design+3
2232. Minimize Result by Adding Parentheses to Expression	Solve	Medium	Pinterest	Enumeration String
2243. Calculate Digit Sum of a String	Solve	Easy	Uber	Simulation String
2246. Longest Path With Different Adjacent Characters	Solve	Hard	Hudson River Trading+1	Array Depth-First Search+4
2255. Count Prefixes of a Given String	Solve	Easy	Google	Array String
2259. Remove Digit From Number to Maximize Result	Solve	Easy	Microsoft	Enumeration Greedy+1
2262. Total Appeal of A String	Solve	Hard	Amazon	Dynamic Programming Hash Table+1
2264. Largest 3-Same-Digit Number in String	Solve	Easy	OpenText+1	String
2266. Count Number of Texts	Solve	Medium	Amazon+1	Dynamic Programming Hash Table+2
2268. Minimum Number of Keypresses	Solve	Medium	Amazon	Counting Greedy+3
2269. Find the K-Beauty of a Number	Solve	Easy	Postmates+1	Math Sliding Window+1
2273. Find Resultant Array After Removing Anagrams	Solve	Easy	Amazon+2	Array Hash Table+2
2278. Percentage of Letter in String	Solve	Easy	American Express	String
2283. Check if Number Has Equal Digit Count and Digit Value	Solve	Easy	Google+1	Counting Hash Table+1
2284. Sender With Largest Word Count	Solve	Medium	Google	Array Counting+2
2287. Rearrange Characters to Make Target String	Solve	Easy	Amazon	Counting Hash Table+1
2288. Apply Discount to Prices	Solve	Medium	Amazon	String
2296. Design a Text Editor	Solve	Hard	Amazon+4	Design Doubly-Linked List+4
2299. Strong Password Checker II	Solve	Easy	-	String
2301. Match Substring After Replacement	Solve	Hard	Discord	Array Hash Table+2
2306. Naming a Company	Solve	Hard	-	Array Bit Manipulation+3
2309. Greatest English Letter in Upper and Lower Case	Solve	Easy	Microsoft	Enumeration Hash Table+1