wenyq7-CSDN博客

原创 LeetCode 1588. Sum of All Odd Length Subarrays

LeetCode 1588. Sum of All Odd Length Subarrays (Easy) 主要知识点：array，算法技巧；优先级：4

2023-09-15 15:17:04 237

原创 1413. Minimum Value to Get Positive Step by Step Sum

这道题说是从一个startValue开始，从左往右加数组里的数字，要保证每次加完这个值都不小于1。翻译过来就是，求这个数组的prefix sum最小的那个数，如果最小的就不小于1，那就return最小的startValue which is 1，如果最小的小于1，那就return (-sum) + 1。

2023-09-14 14:45:01 147

原创 LeetCode 724. Find Pivot Index / 1991. Find the Middle Index in Array

LeetCode 724. Find Pivot Index / 1991. Find the Middle Index in Array (Easy) 主要知识点；prefix sum；优先级：4

2023-09-14 14:36:22 178

原创 LeetCode 933. Number of Recent Calls

LeetCode 933. Number of Recent Calls (Easy) 主要知识点：queue；优先级：4

2023-09-13 14:06:00 160

原创 LeetCode 2073. Time Needed to Buy Tickets

LeetCode 2073. Time Needed to Buy Tickets (Easy) 主要知识点：array；优先级：4

2023-09-13 13:45:29 108

原创 LeetCode 222. Count Complete Tree Nodes

LeetCode 222. Count Complete Tree Nodes (Easy)；主要知识点：tree；优先级：5

2023-09-12 16:00:04 130

原创 2465. Number of Distinct Averages

2465. Number of Distinct Averages (Easy) 主要知识点：array, two pointers, sort, set；优先级：1

2023-09-11 15:10:16 73

原创 LeetCode 2511. Maximum Enemy Forts That Can Be Captured

LeetCode 2511. Maximum Enemy Forts That Can Be Captured (Easy) 主要知识点：array, two pointers；优先级：4

2023-09-11 14:59:12 154

原创 LeetCode 2000. Reverse Prefix of Word

LeetCode 2000. Reverse Prefix of Word (Easy) 主要知识点：string；优先级：1

2023-09-01 14:46:52 627

原创 LeetCode 1385. Find the Distance Value Between Two Arrays

LeetCode 1385. Find the Distance Value Between Two Arrays (Easy) 主要知识点：binary search；优先级：3

2023-08-31 15:58:07 542

原创 LeetCode 1768. Merge Strings Alternately

LeetCode 1768. Merge Strings Alternately (Easy) 主要知识点：array, two pointers；优先级：1

2023-08-31 14:56:06 490

原创 LeetCode 1346. Check If N and Its Double Exist

LeetCode 1346. Check If N and Its Double Exist (Easy)；主要知识点：set；优先级：2

2023-08-30 10:26:40 331

原创 LeetCode 1332. Remove Palindromic Subsequences

LeetCode 1332. Remove Palindromic Subsequences (Easy) 主要知识点：string, two pointers；优先级：1

2023-08-30 10:15:31 264

原创 LeetCode 1089. Duplicate Zeros

LeetCode 1089. Duplicate Zeros (Easy) 主要知识点：array, two pointers；优先级：4

2023-08-29 15:20:45 232

原创 LeetCode 925. Long Pressed Name

LeetCode 925. Long Pressed Name (Easy) 主要知识点：string, two pointers；优先级：4（kind of套路吧）

2023-08-29 14:46:13 304

原创 922. Sort Array By Parity II

922. Sort Array By Parity II (Easy) 主要知识点：array, two pointers；优先级：2（905变体）

2023-08-28 15:06:18 69

原创 LeetCode 917. Reverse Only Letters

LeetCode 917. Reverse Only Letters (Easy) 主要知识点：array, two pointers；优先级：2

2023-08-27 15:16:13 244

原创 LeetCode 905. Sort Array By Parity

LeetCode 905. Sort Array By Parity (Easy) 主要知识点：array, two pointer；优先级：3.5

2023-08-27 14:59:22 445

原创 LeetCode 832. Flipping an Image

LeetCode 832. Flipping an Image (Easy) 主要知识点：array；优先级：1

2023-08-26 15:45:36 313

原创 LeetCode 821. Shortest Distance to a Character

LeetCode 821. Shortest Distance to a Character (Easy) 主要知识点：string；优先级：3

2023-08-24 15:48:26 489

原创 LeetCode 696. Count Binary Substrings

LeetCode 696. Count Binary Substrings (Easy) 主要知识点：string、算法技巧；优先级：4（主要是记住解法）

2023-08-24 14:13:41 399

原创 LeetCode 557. Reverse Words in a String III

LeetCode 557. Reverse Words in a String III (Easy) 主要知识点：string；优先级：3

2023-07-11 16:00:40 178

原创 LeetCode 541. Reverse String II

LeetCode 541. Reverse String II (Easy) 主要知识点：string；优先级：3.5

2023-07-11 15:40:32 267

原创 LeetCode 1763. Longest Nice Substring

LeetCode 1763. Longest Nice Substring (Easy) 主要知识点：divide and conquer；优先级：5

2023-04-04 16:02:13 267

原创 LeetCode 1863. Sum of All Subset XOR Totals

LeetCode 1863. Sum of All Subset XOR Totals (Easy) 主要知识点：backtrack；优先级：5

2023-03-29 16:18:57 255

原创 LeetCode 401. Binary Watch

LeetCode 401. Binary Watch (Easy)；主要知识点：backtrack；优先级：5

2023-03-27 16:39:40 643

原创 LeetCode 1700. Number of Students Unable to Eat Lunch

LeetCode 1700. Number of Students Unable to Eat Lunch (Easy) 主要知识点：queue, array；优先级：4

2023-03-25 16:02:48 570

原创 LeetCode 1614. Maximum Nesting Depth of the Parentheses

LeetCode 1614. Maximum Nesting Depth of the Parentheses (Easy) 主要知识点：stack, string；优先级：2

2023-03-25 15:37:21 306

原创 LeetCode 1598. Crawler Log Folder

LeetCode 1598. Crawler Log Folder (Easy) 主要知识点：强行stack？；优先级：0

2023-03-23 15:21:05 283

原创 LeetCode 1544. Make The String Great

LeetCode 1544. Make The String Great (Easy) 主要知识点：stack, string；优先级：4

2023-03-23 15:02:17 301

原创 LeetCode 1475. Final Prices With a Special Discount in a Shop

LeetCode 1475. Final Prices With a Special Discount in a Shop (Easy) 主要知识点：stack (monotonic stack)；优先级：5

2023-03-23 14:43:03 638

原创 LeetCode 1047. Remove All Adjacent Duplicates In String

LeetCode 1047. Remove All Adjacent Duplicates In String (Easy) 主要知识点：stack, string, 2 pointers；优先级：4

2023-03-22 16:33:17 340

原创 LeetCode 844. Backspace String Compare

LeetCode 844. Backspace String Compare (Easy) 主要知识点：stack, string, 2 pointers；优先级：5

2023-03-21 16:14:41 281

原创 LeetCode 1021. Remove Outermost Parentheses

LeetCode 1021. Remove Outermost Parentheses (Easy) 主要知识点：stack, string；优先级：4

2023-03-21 15:46:19 229

原创 LeetCode 682. Baseball Game

LeetCode 682. Baseball Game (Easy) 主要知识点：stack；优先级：2

2023-03-20 15:53:47 222

原创 1791. Find Center of Star Graph

1791. Find Center of Star Graph (Easy) 主要知识点：graph；优先级：4（主要是精妙的解法需要复习）

2023-03-18 15:48:50 332

原创 LeetCode 1971. Find if Path Exists in Graph

LeetCode 1971. Find if Path Exists in Graph (Easy) 主要知识点：graph, bfs, dfs, union find；优先级：5

2023-03-17 16:33:51 527

原创 LeetCode 733. Flood Fill

LeetCode 733. Flood Fill (Easy) 主要知识点：graph, dfs, bfs；优先级：5（算是例题吧）

2023-03-14 17:56:21 139

原创 LeetCode 2437. Number of Valid Clock Times

LeetCode 2437. Number of Valid Clock Times (Easy) 主要知识点：string；优先级：3

2023-03-13 17:20:48 173

原创 LeetCode 2427. Number of Common Factors

LeetCode 2427. Number of Common Factors (Easy) 主要知识点：math (gcd)；优先级：3

2023-03-12 16:52:42 110

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