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
1433. Check If a String Can Break Another String	Solve	Medium	Endurance	Greedy Sorting+1
1436. Destination City	Solve	Easy	Google+1	Array Hash Table+1
1446. Consecutive Characters	Solve	Easy	Apple+1	String
1447. Simplified Fractions	Solve	Medium	Google	Math Number Theory+1
1451. Rearrange Words in a Sentence	Solve	Medium	Amazon+2	Sorting String
1452. People Whose List of Favorite Companies Is Not a Subset of Another List	Solve	Medium	Google	Array Hash Table+1
1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence	Solve	Easy	Amazon	String String Matching+1
1456. Maximum Number of Vowels in a Substring of Given Length	Solve	Medium	Amazon	Sliding Window String
1461. Check If a String Contains All Binary Codes of Size K	Solve	Medium	Google	Bit Manipulation Hash Function+3
1487. Making File Names Unique	Solve	Medium	Expedia+1	Array Hash Table+1
1496. Path Crossing	Solve	Easy	Google	Hash Table String
1505. Minimum Possible Integer After at Most K Adjacent Swaps On Digits	Solve	Hard	-	Binary Indexed Tree Greedy+2
1507. Reformat Date	Solve	Easy	Expedia+2	String
1513. Number of Substrings With Only 1s	Solve	Medium	Google	Math String
1520. Maximum Number of Non-Overlapping Substrings	Solve	Hard	Amazon	Greedy String
1525. Number of Good Ways to Split a String	Solve	Medium	Amazon	Bit Manipulation Dynamic Programming+2
1528. Shuffle String	Solve	Easy	Google	Array String
1529. Minimum Suffix Flips	Solve	Medium	Amazon+2	Greedy String
1531. String Compression II	Solve	Hard	Adobe+3	Dynamic Programming String
1540. Can Convert String in K Moves	Solve	Medium	Infosys	Hash Table String
1541. Minimum Insertions to Balance a Parentheses String	Solve	Medium	Facebook+1	Greedy Stack+1
1542. Find Longest Awesome Substring	Solve	Hard	Directi	Bit Manipulation Hash Table+1
1544. Make The String Great	Solve	Easy	Adobe+1	Stack String
1545. Find Kth Bit in Nth Binary String	Solve	Medium	Rupeek	Recursion Simulation+1
1554. Strings Differ by One Character	Solve	Medium	Airbnb+1	Hash Function Hash Table+2
1556. Thousand Separator	Solve	Easy	Uber	String
1573. Number of Ways to Split a String	Solve	Medium	Microsoft+1	Math String
1576. Replace All ?'s to Avoid Consecutive Repeating Characters	Solve	Easy	Microsoft	String
1578. Minimum Time to Make Rope Colorful	Solve	Medium	Amazon+2	Array Dynamic Programming+2
1585. Check If String Is Transformable With Substring Sort Operations	Solve	Hard	Google	Greedy Sorting+1
1592. Rearrange Spaces Between Words	Solve	Easy	Google	String
1593. Split a String Into the Max Number of Unique Substrings	Solve	Medium	Amazon+1	Backtracking Hash Table+1
1597. Build Binary Expression Tree From Infix Expression	Solve	Hard	Amazon+1	Binary Tree Stack+2
1598. Crawler Log Folder	Solve	Easy	Mercari	Array Stack+1
1604. Alert Using Same Key-Card Three or More Times in a One Hour Period	Solve	Medium	Indeed+3	Array Hash Table+2
1614. Maximum Nesting Depth of the Parentheses	Solve	Easy	Bloomberg+1	Stack String
1616. Split Two Strings to Make Palindrome	Solve	Medium	Google	String Two Pointers
1618. Maximum Font to Fit a Sentence in a Screen	Solve	Medium	Google	Array Binary Search+2
1624. Largest Substring Between Two Equal Characters	Solve	Easy	Google	Hash Table String
1625. Lexicographically Smallest String After Applying Operations	Solve	Medium	JP Morgan	Breadth-First Search Depth-First Search+2
1629. Slowest Key	Solve	Easy	Amazon+1	Array String
1638. Count Substrings That Differ by One Character	Solve	Medium	Microsoft	Dynamic Programming Enumeration+2
1639. Number of Ways to Form a Target String Given a Dictionary	Solve	Hard	AppDynamics+6	Array Dynamic Programming+1
1647. Minimum Deletions to Make Character Frequencies Unique	Solve	Medium	Amazon+10	Greedy Hash Table+2
1653. Minimum Deletions to Make String Balanced	Solve	Medium	Adobe+1	Dynamic Programming Stack+1
1657. Determine if Two Strings Are Close	Solve	Medium	Facebook+2	Counting Hash Table+2
1662. Check If Two String Arrays are Equivalent	Solve	Easy	Amazon+2	Array String
1663. Smallest String With A Given Numeric Value	Solve	Medium	Adobe	Greedy String
1668. Maximum Repeating Substring	Solve	Easy	Pure Storage	Dynamic Programming String+1
1678. Goal Parser Interpretation	Solve	Easy	Apple	String