String Coding Practice Problems - Page 2 | TutorialsPoint

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Master DSA Topics - January, 2026

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String Coding Problems

Practice problems frequently asked at String • 803 problems | 228 Easy | 390 Medium | 177 Hard

#	Problem	Difficulty	Topics
16	Backspace String Compare	Easy	Two PointersStringStack
17	Base 7	Easy	MathString
18	Basic Calculator	Hard	MathStringStack
19	Basic Calculator II	Medium	MathStringStack
20	Basic Calculator III	Hard	MathStringStack
21	Basic Calculator IV	Hard	Hash TableMathString
22	Before and After Puzzle	Medium	ArrayHash TableString
23	Better Compression of String	Medium	Hash TableStringSorting
24	Binary String With Substrings Representing 1 To N	Medium	Hash TableStringBit Manipulation
25	Binary Tree Paths	Easy	StringBacktrackingTree
26	Bold Words in String	Medium	ArrayHash TableString
27	Brace Expansion	Unknown	StringBacktrackingStack
28	Brace Expansion II	Hard	Hash TableStringBacktracking
29	Break a Palindrome	Medium	StringGreedy
30	Buddy Strings	Easy	Hash TableString

Showing 16-30 of 803

1 2 3 4 ... 54

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public class MyFirstJavaProgram { Edit & Run

/* This is my first java program.

* This will print 'Hello, World!' as the output

*/

public static void main(String []args) {

System.out.println("Hello, World!"); // prints

}

}

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