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DSA Corner

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

Status	Title	Video	Leetcode	Solve	Difficulty	Companies	Topics
	3292. Minimum Number of Valid Strings to Form Target II			Solve	Hard	-	Array Binary Search+6
	3298. Count Substrings That Can Be Rearranged to Contain a String II			Solve	Hard	-	Hash Table Sliding Window+1
	3303. Find the Occurrence of First Almost Equal Substring			Solve	Hard	-	String String Matching
	3320. Count The Number of Winning Sequences			Solve	Hard	-	Dynamic Programming String
	3327. Check if DFS Strings Are Palindromes			Solve	Hard	-	Array Depth-First Search+4
	3329. Count Substrings With K-Frequency Characters II			Solve	Hard	-	Hash Table Sliding Window+1
	3333. Find the Original Typed String II			Solve	Hard	-	Dynamic Programming Prefix Sum+1
	3337. Total Characters in String After Transformations II			Solve	Hard	-	Counting Dynamic Programming+3
	3343. Count Number of Balanced Permutations			Solve	Hard	-	Combinatorics Dynamic Programming+2
	3348. Smallest Divisible Digit Product II			Solve	Hard	-	Backtracking Greedy+3
	3352. Count K-Reducible Numbers Less Than N			Solve	Hard	-	Combinatorics Dynamic Programming+2

Minimum Number of Valid Strings to Form Target II

Hard📹 Video

Array Binary Search Dynamic Programming+5

Count Substrings That Can Be Rearranged to Contain a String II

Hard📹 Video

Hash Table Sliding Window String

Find the Occurrence of First Almost Equal Substring

Hard📹 Video

String String Matching

Count The Number of Winning Sequences

Hard📹 Video

Dynamic Programming String

Check if DFS Strings Are Palindromes

Hard📹 Video

Array Depth-First Search Hash Function+3

Count Substrings With K-Frequency Characters II

Hard📹 Video

Hash Table Sliding Window String

Find the Original Typed String II

Hard📹 Video

Dynamic Programming Prefix Sum String

Total Characters in String After Transformations II

Hard📹 Video

Counting Dynamic Programming Hash Table+2

Count Number of Balanced Permutations

Hard📹 Video

Combinatorics Dynamic Programming Math+1

Smallest Divisible Digit Product II

Hard📹 Video

Backtracking Greedy Math+2

Count K-Reducible Numbers Less Than N

Hard📹 Video

Combinatorics Dynamic Programming Math+1

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