This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| public class Solution { | |
| public int ArithmeticTriplets(int[] nums, int diff) { | |
| var set = new HashSet<string>(); | |
| int i = 0; | |
| int n = nums.Length-1; | |
| int c = 0; | |
| while(i <= n-2) | |
| { |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| public class Solution { | |
| public int LatestTimeCatchTheBus(int[] buses, int[] passengers, int capacity) { | |
| PriorityQueue<int, int> qbus = new(); | |
| PriorityQueue<int, int> qpass = new(); | |
| HashSet<int> set = new(); | |
| foreach(var bus in buses) qbus.Enqueue(bus, bus); | |
| foreach(var p in passengers) | |
| { |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| using System.Collections.Generic; | |
| public class Solution { | |
| public IList<IList<int>> Permute(int[] nums) { | |
| IList<IList<int>> solution = new List<IList<int>>(); | |
| Traverse(nums, new HashSet<int>(), new List<int>(), solution); | |
| return solution; | |
| } | |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| function combinationSum(candidates: number[], target: number): number[][] { | |
| let allStack: number[][] = []; | |
| traverse(candidates, target, [], allStack, 0); | |
| return allStack; | |
| }; | |
| function traverse(candidates: number[], target: number, currentStack: number[], allStack: number[][], startIter: number) { | |
| if (target === 0) { | |
| allStack.push([...currentStack]); |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| using System; | |
| public class Solution { | |
| public void Rotate(int[][] matrix) { | |
| for(int i = 0; i < matrix.Length/2; i++) | |
| { | |
| for(int j = i; j < matrix[i].Length - 1 - i; j++) | |
| { | |
| int b = matrix[j][matrix[i].Length-1-i]; |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| using System.Text; | |
| using System.Collections.Generic; | |
| public class Solution { | |
| public string Convert(string s, int numRows) { | |
| StringBuilder sb = new StringBuilder(); | |
| List<int> pillarIndexes = new List<int>(); | |
| int i = 0; | |
| int h = numRows - 1; |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| using System.Text; | |
| public class Solution { | |
| public string CountAndSay(int n) { | |
| if(n == 1) return "1"; | |
| var previousSay = CountAndSay(n - 1); | |
| StringBuilder sb = new StringBuilder(); | |
| int runningOcc = 1; |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| using System; | |
| using System.Collections.Generic; | |
| using System.Linq; | |
| public class Solution { | |
| public bool IsValidSudoku(char[][] board) { | |
| List<List<HashSet<int>>> sudokuSection = Enumerable.Range(1, 3) | |
| .Select(x => Enumerable.Range(1, 3).Select(x1 => new HashSet<int>(9)).ToList()).ToList(); | |
| List<HashSet<int>> rows = Enumerable.Range(1, 9).Select(x => new HashSet<int>(9)).ToList(); |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| using System.Collections.Generic; | |
| public class Solution { | |
| public IList<IList<int>> ThreeSum(int[] nums) { | |
| var tripletsCollection = new List<IList<int>>(nums.Length); | |
| var tripletSet = new HashSet<string>(nums.Length); | |
| var numOccurance = new Dictionary<int, HashSet<int>>(nums.Length); | |
| for(int i = 0; i < nums.Length; i++) | |
| AddNumOccurance(numOccurance, nums[i], i); |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| public class Solution { | |
| public int MyAtoi(string s) { | |
| sbyte sign = 1; | |
| int runningNumber = 0; | |
| bool isReadNumber = false; | |
| bool isOverflow = false; | |
| for(int i = 0; i < s.Length; i++) | |
| { | |
| if(Char.IsWhiteSpace(s[i]) && !isReadNumber) continue; |