Here, we will discuss two decision tree algorithms, mainly including ID3 and C4.5 algor...
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Decision Tree Learning -
[LeetCode] 84. Largest Rectangle in Histogram
Given n non-negative integers representing the histogram's bar height where the width o...
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[LeetCode] 48. Rotate Image
You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees ...
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[LeetCode] 42. Trapping Rain Water
Given n non-negative integers representing an elevation map where the width of each bar...
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[LeetCode] 41. First Missing Positive
Given an unsorted integer array, find the first missing positive integer. For example,G...
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[LeetCode] 36. Valid Sudoku
Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.The Sudoku boa...
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[LeetCode] 34. Search for a Range
Given an array of integers sorted in ascending order, find the starting and ending posi...
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[LeetCode] 33. Search in Rotated Sorted Array
Suppose an array sorted in ascending order is rotated at some pivot unknown to you befo...
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[LeetCode] 29. Divide Two Integers
Divide two integers without using multiplication, division and mod operator. If it is o...
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[LeetCode] 28. Implement strStr()
Implement strStr(). Returns the index of the first occurrence of needle in haystack, or...
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[LeetCode] 26. Remove Duplicates from Sorted Array
Given a sorted array, remove the duplicates in place such that each element appear only...
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[LeetCode] 23. Merge k Sorted Lists
Merge k sorted linked lists and return it as one sorted list.Analyze and describe its c...
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[LeetCode] 22. Generate Parentheses
Given n pairs of parentheses, write a function to generate all combinations of well-for...
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[LeetCode] 21. Merge Two Sorted Lists
Merge two sorted linked lists and return it as a new list.The new list should be made b...
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[LeetCode] 20. Valid Parentheses
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determin...
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[LeetCode] 17. Letter Combinations of a Phone Number
Given a digit string, return all possible letter combinations that the number could rep...
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[LeetCode] 15. 3Sum
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0...
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[LeetCode] 14. Longest Common Prefix
Write a function to find the longest common prefix string amongst an array of strings. ...
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[LeetCode] 13. Roman to Integer
Given a roman numeral, convert it to an integer. Input is guaranteed to be within the r...
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[LeetCode] 11. Container With Most Water
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordin...