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1.Let's begin with a greeting - Hello World!.c
1.Let's begin with a greeting - Hello World!.c
 
 
10.Half the Number.c
10.Half the Number.c
 
 
11.Basic Data Types in C.c
11.Basic Data Types in C.c
 
 
12.5th Multiple of Joined Number.c
12.5th Multiple of Joined Number.c
 
 
13.Convert 24-Hour Time to 12-Hour Format.c
13.Convert 24-Hour Time to 12-Hour Format.c
 
 
14.Check if Two Numbers Have Same Last Digit.c
14.Check if Two Numbers Have Same Last Digit.c
 
 
15.Voting Eligibility.c
15.Voting Eligibility.c
 
 
16.Discounted Price.c
16.Discounted Price.c
 
 
17-range-check.c
17-range-check.c
 
 
18-Bitwise_Set i-th bit.c
18-Bitwise_Set i-th bit.c
 
 
19.Bitwise_Even or Odd.c
19.Bitwise_Even or Odd.c
 
 
2.lowercase to UPPERCASE.c
2.lowercase to UPPERCASE.c
 
 
20.Bitwise_Extract the i-th Bit.c
20.Bitwise_Extract the i-th Bit.c
 
 
21.Rounded Value - Remove Decimals.c
21.Rounded Value - Remove Decimals.c
 
 
22.Bitwise_Unset i-th Bit.c
22.Bitwise_Unset i-th Bit.c
 
 
23.Bitwise_Toggle i-th bit.c
23.Bitwise_Toggle i-th bit.c
 
 
24.Bitwise_Check the Sign of a Number.c
24.Bitwise_Check the Sign of a Number.c
 
 
25.Swap Two Numbers.c
25.Swap Two Numbers.c
 
 
26.Bitwise_Swap two numbers.c
26.Bitwise_Swap two numbers.c
 
 
27.Bitwise_Check for Multiple of 4.c
27.Bitwise_Check for Multiple of 4.c
 
 
28.Bitwise_Unset Rightmost Bit.c
28.Bitwise_Unset Rightmost Bit.c
 
 
29.Bitwise_Minimum Without Comparison Operators.c
29.Bitwise_Minimum Without Comparison Operators.c
 
 
3.Sum of Two Numbers.c
3.Sum of Two Numbers.c
 
 
30.Bitwise_Count Number of Set Bits.c
30.Bitwise_Count Number of Set Bits.c
 
 
31.If-Else_Largest Among Three Numbers.c
31.If-Else_Largest Among Three Numbers.c
 
 
32.If-Else_Tax Calculator.c
32.If-Else_Tax Calculator.c
 
 
33.If-Else_Leap Year.c
33.If-Else_Leap Year.c
 
 
34.If-Else_Electricity Bill Calculator.c
34.If-Else_Electricity Bill Calculator.c
 
 
35.If-Else_Steel Grade Classification.c
35.If-Else_Steel Grade Classification.c
 
 
36.If-Else_Three Sticks.c
36.If-Else_Three Sticks.c
 
 
37.If-Else_Magical Mirror.c
37.If-Else_Magical Mirror.c
 
 
38.If-Else_Angle Classification.c
38.If-Else_Angle Classification.c
 
 
39.If-Else_Treasure Hunt.c
39.If-Else_Treasure Hunt.c
 
 
4.Characters Distance.c
4.Characters Distance.c
 
 
40.If-Else_Money Heist.c
40.If-Else_Money Heist.c
 
 
41.If-Else_Investment Risk Management.c
41.If-Else_Investment Risk Management.c
 
 
42.If-Else_Number Category.c
42.If-Else_Number Category.c
 
 
43.If-Else_Divisibility Duel.c
43.If-Else_Divisibility Duel.c
 
 
44.If-Else_Nested Geometry Decision.c
44.If-Else_Nested Geometry Decision.c
 
 
45.Switch-Case_Stream Subjects Finder.c
45.Switch-Case_Stream Subjects Finder.c
 
 
46.If-Else_Smallest Even Multiple.c
46.If-Else_Smallest Even Multiple.c
 
 
47.If-Else_Rearrange Input Digits.c
47.If-Else_Rearrange Input Digits.c
 
 
48.Loops_Natural Numbers.c
48.Loops_Natural Numbers.c
 
 
49.Loops_Even Numbers.c
49.Loops_Even Numbers.c
 
 
5.Convert Time into Seconds.c
5.Convert Time into Seconds.c
 
 
50.If-Else_New Year Celebration Budget Planner.c
50.If-Else_New Year Celebration Budget Planner.c
 
 
51.Loops_Divisible by 3 and 5.c
51.Loops_Divisible by 3 and 5.c
 
 
52.Loops_Odd Numbers.c
52.Loops_Odd Numbers.c
 
 
53.If-Else_Next-Day Date Calculator.c
53.If-Else_Next-Day Date Calculator.c
 
 
6.Sum Last Digits.c
6.Sum Last Digits.c
 
 
7.Area of a Rectangle.c
7.Area of a Rectangle.c
 
 
8.Data Type Ranges.c
8.Data Type Ranges.c
 
 
9.Break a 3 Digit Number into Individual Digits.c
9.Break a 3 Digit Number into Individual Digits.c
 
 
README.md
README.md
 
 

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HackerRank C Programming Assignments

A curated collection of C programming solutions to HackerRank problems, developed to demonstrate strong fundamentals, clean coding practices, and consistent problem-solving ability.

This repository is actively maintained and reflects continuous learning and hands-on practice in C programming.

🔧 Technical Skills Demonstrated

  • C Programming (ANSI C)
  • Problem Solving & Logical Thinking
  • Bitwise Operations
  • Conditional Logic
  • Data Types & Memory Awareness
  • Input / Output Handling

📌 Problem Domains

The solutions span across:

  • Basic I/O and arithmetic operations
  • Conditional statements and decision making
  • Bitwise manipulation
  • Character and number processing
  • Time and numeric conversions

Each file corresponds to one HackerRank problem, named clearly for easy reference.

🎯 Objective

  • Build a strong foundation in C programming
  • Maintain a public problem-solving portfolio
  • Prepare for technical interviews and coding assessments

🔄 Status

✔ Actively updated
✔ More HackerRank solutions to be added

👤 Author

Samarth Swami
Computer Science Student | C Programmer | Aspiring Software Engineer

⭐ Feel free to star the repository if you find it useful!

About

This repository contains my solutions to HackerRank C programming challenges, developed to strengthen core C concepts and practical problem-solving skills. The problems cover input and output handling, conditional logic, arithmetic operations, bitwise manipulation, and data types, with each solution emphasizing clarity, correctness.

Topics

c array bit-manipulation bitwise bitwise-operators loops-and-patterns switch-statements pattern-printing if-else-statements if-else-if jump-state

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