HackerRank_Solutions

Here you will get All Solutions for Topics from HackerRank Platform

🛠 Skills Used in this Repository...

        

Topics Covered...

• 30 Day's Of Code
• C
• JAVA

30 Day's of Code

Day	Problem Name	Difficulty Level	HackerRank Panel Link	Solution	Solution Available Using
0	Hello, World.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
1	Data Types.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
2	Operators.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
3	Intro to Conditional Statements.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
4	Class vs. Instance	Easy	Click Here	Click Here	C++ , JAVA , Python
5	Loops.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
6	Let's Review.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
7	Arrays.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
8	Dictionaries and Maps.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
9	Recursion 3.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
10	Binary Numbers.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
11	2D Arrays.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
12	Inheritance.	Easy	Click Here	Click Here	C++ , JAVA , Python
13	Abstract Classes.	Easy	Click Here	Click Here	C++ , JAVA , Python
14	Scope.	Easy	Click Here	Click Here	C++ , JAVA , Python
15	Linked List.	Easy	Click Here	Click Here	C , JAVA , Python
16	Exceptions - String to Integer.	Easy	Click Here	Click Here	C++ , JAVA , Python
17	More Exceptions.	Easy	Click Here	Click Here	C++ , JAVA , Python
18	Queues and Stacks.	Easy	Click Here	Click Here	C++ , JAVA
19	Interfaces.	Easy	Click Here	Click Here	C++ , JAVA , Python
20	Sorting.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
21	Generics.	Easy	Click Here	Click Here	C++ , JAVA
22	Binary Search Trees.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
23	BST Level Order Traversal	Easy	Click Here	Click Here	C , C++ , JAVA
24	More Linked Lists.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
25	Running Time and Complexity.	Medium	Click Here	Click Here	C , C++ , JAVA , Python
26	Nested Logic.	Easy	Click Here	Click Here	C , C++ , JAVA , Python
27	Testing.	Easy	Click Here	Click Here	C++ , JAVA , Python
28	RegEx, Patterns, and Intro to Databases.	Medium	Click Here	Click Here	C , C++ , JAVA , Python
29	Bitwise AND.	Medium	Click Here	Click Here	C , C++ , JAVA , Python

C

	Problem Name	SubDomain	Difficulty Level	HackerRank Panel Link	Solution
1	"Hello World!" in C	Introduction	Easy	Click Here	Click Here
2	Playing With Characters	Introduction	Easy	Click Here	Click Here
3	Sum and Difference of Two Numbers	Introduction	Easy	Click Here	Click Here
4	Functions in C	Introduction	Easy	Click Here	Click Here
5	Pointers in C	Introduction	Easy	Click Here	Click Here
6	Conditional Statements in C	Conditionals and Loops	Easy	Click Here	Click Here
7	For Loop in C	Conditionals and Loops	Easy	Click Here	Click Here
8	Sum of Digits of a Five Digit Number	Conditionals and Loops	Easy	Click Here	Click Here
9	Bitwise Operators	Conditionals and Loops	Easy	Click Here	Click Here
10	Printing Pattern Using Loops	Conditionals and Loops	Easy	Click Here	Click Here
11	1D Arrays in C	Arrays and Strings	Medium	Click Here	Click Here
12	Array Reversal	Arrays and Strings	Medium	Click Here	Click Here
13	Printing Tokens	Arrays and Strings	Medium	Click Here	Click Here
14	Digit Frequency	Arrays and Strings	Medium	Click Here	Click Here
15	Dynamic Array in C	Arrays and Strings	Medium	Click Here	Click Here
16	Calculate the Nth term	Functions	Easy	Click Here	Click Here
17	Students Marks Sum	Functions	Easy	Click Here	Click Here
18	Permutations of Strings	Functions	Medium	Click Here	Click Here
19	Variadic functions in C	Functions	Medium	Click Here	Click Here
20	Sorting Array of Strings	Functions	Hard	Click Here	Click Here
21	Querying the Document	Functions	Hard	Click Here	Click Here
22	Boxes through a Tunnel	Structs and Enums	Easy	Click Here	Click Here
23	Small Triangles, Large Triangles	Structs and Enums	Medium	Click Here	Click Here
24	Structuring the Document	Structs and Enums	Hard	Click Here	Click Here
25	Post Transition	Structs and Enums	Hard	Click Here	Click Here

JAVA

	Problem Name	SubDomain	Difficulty Level	HackerRank Panel Link	Solution
1	Welcome to Java	Introduction	Easy	Click Here	Click Here
2	Java Stdin and Stdout 1	Introduction	Easy	Click Here	Click Here
3	Java If-Else	Introduction	Easy	Click Here	Click Here
4	Java Stdin and Stdout 2	Introduction	Easy	Click Here	Click Here
5	Java Output Formatting	Introduction	Easy	Click Here	Click Here
6	Java Loops 1	Introduction	Easy	Click Here	Click Here
7	Java Loops 2	Introduction	Easy	Click Here	Click Here
8	Java Datatypes	Introduction	Easy	Click Here	CLick Here
9	Java End-of-file	Introduction	Easy	Click Here	Click Here
10	Java Static Initializer Block	Introduction	Easy	Click Here	Click Here
11	Java Int to String	Introduction	Easy	Click Here	Click Here
12	Java Date and Time	Introduction	Easy	Click Here	Click Here
13	Java Currency Formatter	Introduction	Easy	Click Here	Click Here
14	Java Regex	String	Medium	Click Here	Click Here
15	Java Strings Introduction	String	Easy	Click Here	Click Here
16	Java Substring	String	Easy	Click Here	Click Here
17	Java Substring Comparisions	String	Easy	Click Here	Click Here
18	Java String Reverse	String	Easy	Click Here	Click Here
19	Java Anagrams	String	Easy	Click Here	Click Here
20	Java String Tokens	String	Easy	Click Here	Click Here
21	Pattern Syntax Checker	String	Easy	Click Here	Click Here
22	Java Regex 2-Duplicate Words	String	Medium	Click Here	Click Here
23	Valid Username Regular Expression	String	Easy	Click Here	Click Here
24	Tag Content Extractor	String	Medium	Click Here	Click Here
25	Java Primality Test	BigNumber	Easy	Click Here	Click Here
26	Java BigInteger	BigNumber	Easy	Click Here	Click Here
27	Java BigDecimal	BigNumber	Medium	Click Here	Click Here
28	Java Subarray	Data Structures	Easy	Click Here	Click Here
29	Java 1D Array	Data Structures	Easy	Click Here	Click Here
30	Java 2D Array	Data Structures	Easy	Click Here	Click Here
31	Java ArrayList	Data Structures	Easy	Click Here	Click Here
32	Java 1D Array(Part 2)	Data Structures	Medium	Click Here	Click Here
33	Java List	Data Structures	Easy	Click Here	Click Here
34	Java Map	Data Structures	Easy	Click Here	Click Here
35	Java Stack	Data Structures	Medium	Click Here	Click Here
36	Java Hashset	Data Structures	Easy	Click Here	Click Here
37	Java Generics	Data Structures	Easy	Click Here	Click Here
38	Java Comparator	Data Structures	Medium	Click Here	Click Here
39	Java Sort	Data Structures	Easy	Click Here	Click Here
40	Java Dequeue	Data Structures	Medium	Click Here	Click Here
41	Java Bitset	Data Structures	Easy	Click Here	Click Here
42	Java Priority Queue	Data Structures	Medium	Click Here	Click Here
43	Java Inheritance 1	Object Oriented Programming	Easy	Click Here	Click Here
44	Java Inheritance 2	Object Oriented Programming	Easy	Click Here	Click Here
45	Java Abstract Class	Object Oriented Programming	Easy	Click Here	Click Here
46	Java Interface	Object Oriented Programming	Easy	Click Here	Click Here
47	Java Method Overriding	Object Oriented Programming	Easy	Click Here	Click Here
48	Java Method Overriding 2(Super Keyword)	Object Oriented Programming	Easy	Click Here	Click Here
49	Java Instanceof keyword	Object Oriented Programming	Easy	Click Here	Click Here
50	Java Iterator	Object Oriented Programming	Easy	Click Here	Click Here
50	Java Iterator	Object Oriented Programming	Easy	Click Here	Click Here
51	Java Exception Handling	Exception Handling	Easy	Click Here	Click Here
52	Java Exception Handling (Try-catch)	Exception Handling	Easy	Click Here	Click Here
53	Java Varargs - Simple Addition	Advanced	Easy	Click Here	Click Here
54	Java Reflection - Attributes	Advanced	Easy	Click Here	Click Here
55	Java Factory Pattern	Advanced	Easy	Click Here	Click Here
56	Java Singleton Pattern	Advanced	Easy	Click Here	Click Here
57	Covariant Return Types	Advanced	Easy	Click Here	Click Here
58	Can You Access?	Advanced	Medium	Click Here	Click Here
59	Prime Checker	Advanced	Medium	Click Here	Click Here
60	Java Visitor Pattern	Advanced	Medium	Click Here	Click Here
61	Java Annotations	Advanced	Medium	Click Here	Click Here
62	Java Lambda Expressions	Advanced	Medium	Click Here	Click Here
63	Java MD5	Advanced	Medium	Click Here	Click Here
64	Java SHA-256	Advanced	Medium	Click Here	Click Here

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