ahmedkhalil777 / problem-solving

Solving problems of LeetCode - Hacker rank on dotnet

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Solving problems of Hacker rank on dotnet

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Leet Code Problems

Problem	Solution
15. 3Sum	#af2db21
605. Can Place Flowers	#af2db21
1431. Kids With the Greatest Number of Candies	#82b7a48

Domains

The Solution is handled with alphabitical order within the solution domain with TDD techniques

• Problem Solving | Algorithms
• Problem Solving | Data Structures
• Problem Solving | Algorithms Testing
• Problem Solving | Data Structures Testing

problem-solving's Issues

Ugly Number Leet Code

2389. Longest Subsequence With Limited Sum Leet Code

Find Digits - Algorithms

Sherlock and Squares - Algorithms

Roman To Integer Leet Code

8. String to Integer (atoi) Leet Code

Isomorphic Strings Leet Code

Reverse Integer LeetCode

Array DS - Data Structures

Viral Advertising - Algorithms

Is Subsequence Leet Code

Longest Substring Without Repeating Characters - LeetCode

Algorithms - Sequence Equation

876. Middle of the Linked List Leet Code

Left Rotation - Data Structures

Longest Common Prefix - Leet Code

790. Domino and Tromino Tiling Leet Code

   public int NumTilings(int n) {
        const int mod = 1000000007;
        int [] dp = new int[n + 10];
        dp[0] = 1;
        dp[1] = 1;
        dp[2] = 2;
        dp[3] = 5;
        for (int i = 4; i <= n; i++)
        {
            dp[i] = dp[i - 1] * 2 % mod + dp[i - 3] % mod;
            dp[i] %= mod;
        }
        return dp[n];
    }

Sparse Arrays - DS

Problem : https://www.hackerrank.com/challenges/sparse-arrays/problem?isFullScreen=true

Divide To Integers LeetCode

6. Zigzag Conversion Leet Code

Dynamic Array - Data Structures

Algorithms - Save the Prisoner

Rectangle Area Leet Code

Median of Two Sorted Arrays - LeetCode

Pivot Index Leet Code

704. Binary Search Leet Code

Cut the sticks - Algorithms

Print the Elements of a Linked List - DS

Problem : https://www.hackerrank.com/challenges/print-the-elements-of-a-linked-list/problem?isFullScreen=true

Extra Long Factorials - Algorithms

Algorithms - Jumping on Clouds

278. First Bad Version Leet Code

Contains Duplicate II & Contains Duplicate III - Leet Code

Algorithms - Cyclic Binary String

Append And Delete - Algorithms

206. Reverse Linked List Leet Code

LeetCode - Merge Two Sorted Lists

Rotate Image Leet Code

309. Best Time to Buy and Sell Stock with Cooldown Leet Code

Add Two Numbers - LeetCode

2D Array - DS -Data Structures

Library Fine - Algorithms

Algorithms - Circular Array Rotation

Multiply Strings Leet Code

Repeated String - Algorithms

contains-duplicate-ii - Leet Code

Valid Parentheses - Leet code

Integers To Romans Leet Code

Non-Divisible Subset - Algorithms

Array Manipulation - DS

Problem : https://www.hackerrank.com/challenges/crush/problem?isFullScreen=true

Palindrome Integer Leet Code