初初学者刷Leetcode 一日一题

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 题目来源：Leetcode
 刷题路线：leetcode_101

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题目类别：

1.贪心算法：

No.135_Candy (Hard)
No.435_None-overlapping_Intervals (Medium)
No.455_Assign_Cookies (Easy)
No.605_Can_Place_Flowers (Easy)
No.452_Minimum_Number_of_Arrows_to_burst_balloons (Medium)
No.763_Partition_Labels (Medium)
No.122_Best_Time_to_Buy_and_Sell_Stock2 (Easy)
No.406_Queue_Reconstruction_by_Height (Medium)
No.665_None-decreasing_Array (Easy)

2.双指针：

No.167_Two_Sum2-Input_array_is_sorted (Easy)
No.88_Merge_Sorted_Array (Easy)
No.142_Linked_List_Cycle2 (Medium)
No.76_Minimun_Window_Substring (Hard)
No.633_Sum_of_Square_Numbers (Medium)
No.680_Valid_Palindrome2 (Easy)
No.524_Longest_Word_in_Dictionary_through_Deleting (Medium)
No.340_Longest_Substring_with_At_Most_K_Distinct_Characters (Medium)

3.二分查找：

No.69_Sqrt(x) (Easy)
No.34_Find_First_and_Last_Position_of_Element_in_Sorted_Array (Medium)
No.81_Search_in_Rotated_Sorted_Array2 (Medium)
No.154_Find_Minimum_in_Rotated_Sorted_Array2 (Medium)
No.540_Single_Element_in_a_Sorted_Array (Medium)
No.4_Median_of_Two_Sorted_Arrays (Hard)

4.排序：

Review_of_Sort_Algorithm
No.215_Kth_Largest_Element_in_an_Array (Medium)
No.347_Top_K_Frequent_Elements (Medium)
No.451_Sort_Characters_By_Frequency (Medium)
No.75_Sort_Colors (Medium)

5.搜索：

No.695_Max_Area_of_Island (Medium)
No.547_Number_of_Provinces (Medium)
No.417_Pacific_Atlantic_Water_Flow (Medium)
No.46_Permutations (Medium)
No.77_Combinations (Medium)
No.79_Word_Search (Medium)
No.51_N-Qweens (Hard)
No.934_Shortest_Bridge (Medium)
No.126_Word_Ladder2 (Hard)
No.130_Surrounded_Regions (Medium)
No.257_Binary_Tree_Paths (Easy)
No.47_Permutations2 (Medium)
No.40_Combination_Sum2 (Medium)
No.37_Sudoku_Solver (Hard)
No.310_Minimum_Height_Trees (Medium)

6.动态规划：

No.70_Climbing_Stairs (Easy)
No.198_House_Robber (Medium)