随笔分类 -  leetcode

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【leetcode_easy_sort】1030. Matrix Cells in Distance Order
摘要:problem 1030. Matrix Cells in Distance Order solution#1: 排序; code solution#2: code 参考 1. leetcode_easy_sort_1030. Matrix Cells in Distance Order; 2. s 阅读全文

posted @ 2020-12-02 06:45 鹅要长大 阅读(44) 评论(0) 推荐(0) 编辑

【leetcode_easy_sort】1356. Sort Integers by The Number of 1 Bits
摘要:problem 1356. Sort Integers by The Number of 1 Bits solution#1: code: 注意,先按照数字1的数目排序,若相等,则按照整数的大小排序; 参考 1. leetcode_easy_sort_1356. Sort Integers by T 阅读全文

posted @ 2020-12-02 06:43 鹅要长大 阅读(60) 评论(0) 推荐(0) 编辑

【leetcode_easy_math】883. Projection Area of 3D Shapes
摘要:problem 883. Projection Area of 3D Shapes solution#1: code 注意求解各行的最大值之和,以及各列的最大值之和; 参考 1. leetcode_easy_math_883. Projection Area of 3D Shapes; 2. Gra 阅读全文

posted @ 2020-11-05 10:50 鹅要长大 阅读(61) 评论(0) 推荐(0) 编辑

【leetcode_easy】1475. Final Prices With a Special Discount in a Shop
摘要:leetcode_easy_array problem 1475. Final Prices With a Special Discount in a Shop solution #1: 使用新数组更新数据; code solution #2: 直接在原数组更新数据; code: 注意: 1. 满足 阅读全文

posted @ 2020-10-29 22:50 鹅要长大 阅读(62) 评论(0) 推荐(0) 编辑

【leetcode_easy】1486. XOR Operation in an Array
摘要:leetcode_easy_array problem 1486. XOR Operation in an Array solution #1: code: 参考 1. leetcode_1486. XOR Operation in an Array; 完 阅读全文

posted @ 2020-10-29 22:41 鹅要长大 阅读(66) 评论(0) 推荐(0) 编辑

【leetcode_easy】1491. Average Salary Excluding the Minimum and Maximum Salary
摘要:leetcode_easy_array 1491. Average Salary Excluding the Minimum and Maximum Salary solution #1: code solution #2: code 注意: 1. 去除最大最小值之后的平均值; 2. 数组元素是un 阅读全文

posted @ 2020-10-28 08:13 鹅要长大 阅读(116) 评论(0) 推荐(0) 编辑

【leetcode_easy】1480. Running Sum of 1d Array
摘要:leetcode_easy_array problem 1480. Running Sum of 1d Array solution #1: code: 参考 1. leetcode_1480. Running Sum of 1d Array; 完 阅读全文

posted @ 2020-10-28 08:11 鹅要长大 阅读(74) 评论(0) 推荐(0) 编辑

【leetcode_easy】1470. Shuffle the Array
摘要:leetcode_easy_array problem 1470. Shuffle the Array solution #1: code solution #2: code 注意: 1. vector; first, last Input iterators to the initial and 阅读全文

posted @ 2020-10-28 08:08 鹅要长大 阅读(144) 评论(0) 推荐(0) 编辑

【leetcode_easy】1464. Maximum Product of Two Elements in an Array
摘要:leetcode_easy_array 1464. Maximum Product of Two Elements in an Array solution #1: code: 参考 1. leetcode_1464. Maximum Product of Two Elements in an Ar 阅读全文

posted @ 2020-10-27 23:13 鹅要长大 阅读(39) 评论(0) 推荐(0) 编辑

【leetcode_medium】18. 4Sum
摘要:leetcode_medium_array problem 18. 4Sum solution #1: code 注意: 1. 和3Sum的题目思路基本一致,多了一层循环,使用双指针; 参考 1. leetcode_18. 4Sum; 2. Grandyang; 完 阅读全文

posted @ 2020-10-27 23:12 鹅要长大 阅读(58) 评论(0) 推荐(0) 编辑

【leetcode_medium】16. 3Sum Closest
摘要:leetcode_medium_array problem 16. 3Sum Closest solution #1: 三重循环; code: solution #2: 排序后通过双指针移动确定; code 参考 1. leetcode_16. 3Sum Closest; 完 阅读全文

posted @ 2020-10-27 23:10 鹅要长大 阅读(57) 评论(0) 推荐(0) 编辑

【leetcode_medium】11. Container With Most Water
摘要:leetcode_medium_array problem 11. Container With Most Water solution #1: code 参考 1. leetcode_11. Container With Most Water; 完 阅读全文

posted @ 2020-10-27 23:09 鹅要长大 阅读(70) 评论(0) 推荐(0) 编辑

【leetcode_medium】15. 3Sum
摘要:leetcode_medium_array problem 15. 3Sum 注意: 1. 题目要求的没有重复的三元组,是指三元组是不同的,但是三元组的元素是可能有相同的; 2. 参考 1. leetcode_15. 3Sum; 2. Grandyang; 完 阅读全文

posted @ 2020-10-27 23:05 鹅要长大 阅读(107) 评论(0) 推荐(0) 编辑

【leetcode_medium】31. Next Permutation
摘要:leetcode_medium_array problem 31. Next Permutation solution #1: According to Wikipedia, a man named Narayana Pandita presented the following simple al 阅读全文

posted @ 2020-10-27 22:59 鹅要长大 阅读(119) 评论(0) 推荐(0) 编辑

【leetcode_easy】1460. Make Two Arrays Equal by Reversing Sub-arrays
摘要:leetcode_easy_array problem 1460. Make Two Arrays Equal by Reversing Sub-arrays solution #1: code: 参考 1. leetcode_1460. Make Two Arrays Equal by Rever 阅读全文

posted @ 2020-10-27 22:58 鹅要长大 阅读(74) 评论(0) 推荐(0) 编辑

【leetcode_easy】1502. Can Make Arithmetic Progression From Sequence
摘要:leetcode_easy_array 1502. Can Make Arithmetic Progression From Sequence solution #1: code 参考 1. leetcode_1502. Can Make Arithmetic Progression From Se 阅读全文

posted @ 2020-10-27 22:52 鹅要长大 阅读(51) 评论(0) 推荐(0) 编辑

【leetcode_easy】1588. Sum of All Odd Length Subarrays
摘要:1588. Sum of All Odd Length Subarrays solution#1: Brute Search; code solution#2: 元素求和; code solution#3: 找规律; code: 参考 1. leetcode_easy_array_1588. Sum 阅读全文

posted @ 2020-10-27 22:48 鹅要长大 阅读(91) 评论(0) 推荐(0) 编辑

【leetcode_medium】33. Search in Rotated Sorted Array
摘要:leetcode_medium_array problem 33. Search in Rotated Sorted Array solution #1: 解题思路: 先使用二分法找出最小的元素,然后确定哪一边进行搜索,最后使用二分法搜索; code: 注意: 1. 二分法的思路和code必须熟练掌 阅读全文

posted @ 2020-10-22 19:57 鹅要长大 阅读(62) 评论(0) 推荐(0) 编辑

【leetcode_medium】34. Find First and Last Position of Element in Sorted Array
摘要:leetcode_medium_array problem 34. Find First and Last Position of Element in Sorted Array solution #1: 解题思路:分别使用二分法查找最左和最右端的元素; code 注意,最右端元素的mid值如何确定 阅读全文

posted @ 2020-10-22 19:56 鹅要长大 阅读(45) 评论(0) 推荐(0) 编辑

【leetcode_medium】39. Combination Sum
摘要:leetcode_medium_array problem 39. Combination Sum 看过别人的解法还是没有完全明白。。。 solution #1: 使用递归函数; code: solution #2: 数组排序后使用递归函数; code 注意: 1. 参考 1. leetcode_3 阅读全文

posted @ 2020-10-22 19:55 鹅要长大 阅读(97) 评论(0) 推荐(0) 编辑

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