File tree

• solution
  • 0100-0199
    • 0157.Read N Characters Given Read4
      • README_EN.md
      • images
        • 157_example.png
    • 0158.Read N Characters Given Read4 II - Call multiple times
      • README_EN.md
      • images
        • 157_example.png
  • 0200-0299
    • 0250.Count Univalue Subtrees
      • README_EN.md
      • images
        • unival_e1.jpg
    • 0277.Find the Celebrity
      • README.md
      • README_EN.md
      • images
        • 277_example_1_bold.png
        • 277_example_2.png
    • 0285.Inorder Successor in BST
      • README.md
      • README_EN.md
      • images
        • 285_example_1.png
        • 285_example_2.png
  • 0300-0399
    • 0351.Android Unlock Patterns
      • README.md
      • README_EN.md
      • images
        • android-unlock.png
    • 0356.Line Reflection
      • README_EN.md
      • images
        • 356_example_1.png
        • 356_example_2.png
  • 0400-0499
    • 0426.Convert Binary Search Tree to Sorted Doubly Linked List
      • README.md
      • README_EN.md
      • images
        • bstdlloriginalbst.png
        • bstdllreturnbst.png
        • bstdllreturndll.png
    • 0428.Serialize and Deserialize N-ary Tree
      • README.md
      • README_EN.md
      • images
        • narytreeexample.png
        • sample_4_964.png
    • 0431.Encode N-ary Tree to Binary Tree
      • README.md
      • README_EN.md
      • images
        • narytreebinarytreeexample.png
    • 0469.Convex Polygon
      • README.md
      • README_EN.md
      • images
        • polygon_convex.png
        • polygon_not_convex.png
    • 0490.The Maze
      • README.md
      • README_EN.md
      • images
        • maze_1_example_1.png
        • maze_1_example_2.png
        • maze_2_example_1.png
        • maze_2_example_2.png
    • 0499.The Maze III
      • README.md
      • README_EN.md
      • maze_2_example_1.png
      • maze_2_example_2.png
  • 0500-0599
    • 0505.The Maze II
      • README.md
      • README_EN.md
      • images
        • maze_1_example_1.png
        • maze_1_example_2.png
    • 0510.Inorder Successor in BST II
      • README.md
      • README_EN.md
      • images
        • 285_example_1.png
        • 285_example_2.png
        • 285_example_34.png
    • 0573.Squirrel Simulation
      • README.md
      • README_EN.md
      • images
        • squirrel_simulation.png
    • 0588.Design In-Memory File System
      • README.md
      • README_EN.md
      • images
        • filesystem.png
  • 0700-0799
    • 0708.Insert into a Sorted Circular Linked List
      • README.md
      • README_EN.md
      • images
        • example_1_after_65p.jpg
        • example_1_before_65p.jpg
    • 0723.Candy Crush
      • README.md
      • README_EN.md
      • images
        • candy_crush_example_2.png
  • 1000-1099
    • 1056.Confusing Number
      • README.md
      • README_EN.md
      • images
        • 1268_1.png
        • 1268_2.png
        • 1268_3.png
        • 1268_4.png
    • 1057.Campus Bikes
      • README_EN.md
    • 1059.All Paths from Source Lead to Destination
      • README_EN.md
    • 1066.Campus Bikes II
      • README_EN.md
  • 1100-1199
    • 1102.Path With Maximum Minimum Value
      • README_EN.md
    • 1120.Maximum Average Subtree
      • README_EN.md
    • 1135.Connecting Cities With Minimum Cost
      • README_EN.md
    • 1136.Parallel Courses
      • README_EN.md
    • 1168.Optimize Water Distribution in a Village
      • README_EN.md
      • images
        • 1359_ex1.png
    • 1197.Minimum Knight Moves
      • README_EN.md
  • 1200-1299
    • 1214.Two Sum BSTs
      • README_EN.md
    • 1217.Minimum Cost to Move Chips to The Same Position
      • README_EN.md
      • images
        • chip_e2.jpg
        • chips_e1.jpg
    • 1236.Web Crawler
      • README.md
      • README_EN.md
      • images
        • sample_2_1497.png
        • sample_3_1497.png
        • urlhostname.png
    • 1245.Tree Diameter
      • README_EN.md
    • 1256.Encode Number
      • README_EN.md
    • 1259.Handshakes That Don't Cross
      • README_EN.md
    • 1261.Find Elements in a Contaminated Binary Tree/images
      • 1261_example_1_v2.png
      • 1261_example_2_v2.png
    • 1273.Delete Tree Nodes
      • README_EN.md
    • 1274.Number of Ships in a Rectangle
      • README_EN.md
  • 1400-1499/1448.Count Good Nodes in Binary Tree
    • README_EN.md
  • 1500-1599
    • 1503.Last Moment Before All Ants Fall Out of a Plank
      • README.md
      • README_EN.md
      • images/images
        • ants.jpg
        • ants2.jpg
        • ants3.jpg
    • 1505.Minimum Possible Integer After at Most K Adjacent Swaps On Digits
      • README.md
      • README_EN.md
      • images
        • q4_1.jpg
    • 1518.Water Bottles
      • README_EN.md
    • 1557.Minimum Number of Vertices to Reach All Nodes
      • README_EN.md
      • images
        • untitled.png
        • untitled22.png
    • 1558.Minimum Numbers of Function Calls to Make Target Array
      • README.md
      • README_EN.md
      • images
        • sample_2_1887.png
    • 1559.Detect Cycles in 2D Grid
      • README_EN.md
      • images
        • 1.png
        • 11.png
        • 2.png
        • 22.png
        • 3.png
    • 1560.Most Visited Sector in a Circular Track
      • README_EN.md
      • images
        • tmp.jpg
    • 1564.Put Boxes Into the Warehouse I
      • README_EN.md
      • images
        • 11.png
        • 12.png
        • 21.png
        • 22.png
    • 1568.Minimum Number of Days to Disconnect Island
      • README_EN.md
    • 1572.Matrix Diagonal Sum
      • README.md
      • README_EN.md
      • images
        • sample_1911.png
    • 1579.Remove Max Number of Edges to Keep Graph Fully Traversable
      • README_EN.md
      • images
        • ex1.png
        • ex2.png
        • ex3.png
    • 1584.Min Cost to Connect All Points
      • README.md
      • README_EN.md
      • images
        • c.png
        • d.png
    • 1591.Strange Printer II
      • README_EN.md
    • 1595.Minimum Cost to Connect Two Groups of Points
      • README_EN.md
    • 1598.Crawler Log Folder
      • README_EN.md
    • 1599.Maximum Profit of Operating a Centennial Wheel
      • README_EN.md
  • 1600-1699
    • 1601.Maximum Number of Achievable Transfer Requests
      • README.md
      • README_EN.md
      • images
        • move1.jpg
        • move2.jpg
    • 1606.Find Servers That Handled Most Number of Requests
      • README.md
      • README_EN.md
      • images
        • load-1.png
    • 1609.Even Odd Tree
      • README.md
      • README_EN.md
      • images
        • sample_1_1966.png
        • sample_1_333_1966.png
        • sample_2_1966.png
    • 1610.Maximum Number of Visible Points
      • README.md
      • README_EN.md
      • images
        • 5010bfd3-86e6-465f-ac64-e9df941d2e49.png
        • 89a07e9b-00ab-4967-976a-c723b2aa8656.png
        • angle.mp4
    • 1615.Maximal Network Rank
      • README.md
      • README_EN.md
      • images
        • ex1.png
        • ex2.png
    • 1617.Count Subtrees With Max Distance Between Cities
      • README.md
      • README_EN.md
      • images
        • p1.png
    • 1620.Coordinate With Maximum Network Quality
      • README.md
      • README_EN.md
      • images
        • untitled-diagram.png
    • 1621.Number of Sets of K Non-Overlapping Line Segments
      • README.md
      • README_EN.md
      • images
        • ex1.png
    • 1627.Graph Connectivity With Threshold
      • README.md
      • README_EN.md
      • images
        • ex1.jpg
        • ex3.jpg
        • tmp.jpg
    • 1631.Path With Minimum Effort
      • README.md
      • README_EN.md
      • images
        • ex1.png
        • ex2.png
        • ex3.png
    • 1632.Rank Transform of a Matrix
      • README.md
      • README_EN.md
      • images
        • rank1.jpg
        • rank2.jpg
        • rank3.jpg
        • rank4.jpg
    • 1637.Widest Vertical Area Between Two Points Containing No Points
      • README.md
      • README_EN.md
      • images
        • points3.png
    • 1642.Furthest Building You Can Reach
      • README.md
      • README_EN.md
      • images
        • q4.gif
    • 1643.Kth Smallest Instructions
      • README.md
      • README_EN.md
      • images
        • ex1.png
        • ex2.png
        • ex3.png
    • 1648.Sell Diminishing-Valued Colored Balls
      • README.md
      • README_EN.md
      • images
        • jj.gif
    • 1656.Design an Ordered Stream
      • README.md
      • README_EN.md
      • images
        • q1.gif
    • 1659.Maximize Grid Happiness
      • README.md
      • README_EN.md
      • images
        • grid_happiness.png
    • 1669.Merge In Between Linked Lists
      • README.md
      • README_EN.md
      • images
        • fig1.png
        • merge_linked_list_ex1.png
        • merge_linked_list_ex2.png
    • 1691.Maximum Height by Stacking Cuboids
      • README.md
      • README_EN.md
      • images
        • image.jpg
    • 1697.Checking Existence of Edge Length Limited Paths
      • README.md
      • README_EN.md
      • images
        • h.png
        • q.png
  • 1700-1799
    • 1706.Where Will the Ball Fall
      • README.md
      • README_EN.md
      • images
        • ball.jpg
    • 1719.Number Of Ways To Reconstruct A Tree
      • README.md
      • README_EN.md
      • images
        • tree.png
        • trees2.png
    • 1721.Swapping Nodes in a Linked List
      • README.md
      • README_EN.md
      • images
        • linked1.jpg
    • 1727.Largest Submatrix With Rearrangements
      • README.md
      • README_EN.md
      • images
        • screenshot-2020-12-30-at-40536-pm.png
        • screenshot-2020-12-30-at-40852-pm.png
    • 1728.Cat and Mouse II
      • README.md
      • README_EN.md
      • images
        • sample_111_1955.png
        • sample_2_1955.png
    • 1739.Building Boxes
      • README.md
      • README_EN.md
      • images
        • 10-boxes.png
        • 3-boxes.png
        • 4-boxes.png
    • 1751.Maximum Number of Events That Can Be Attended II
      • README.md
      • README_EN.md
      • images
        • screenshot-2021-01-11-at-60048-pm.png
        • screenshot-2021-01-11-at-60150-pm.png
        • screenshot-2021-01-11-at-60703-pm.png
    • 1761.Minimum Degree of a Connected Trio in a Graph
      • README.md
      • README_EN.md
      • images
        • trios1.png
        • trios2.png