杨领well的专栏

LeetCode:Weekly Contest 101 题目描述 1. LeetCode: 900. RLE Iterator 题解 2. LeetCode: 901. Online Stock Span 题解 3. LeetCode: 902. Numbers At Most N Given Digit Set 题解 4. LeetCode: 903. Valid Permutat...

LeetCode: 900. RLE Iterator 题目描述 Write an iterator that iterates through a run-length encoded sequence. The iterator is initialized by RLEIterator(int[] A), where A is a run-length encoding of some...

LeetCode: 901. Online Stock Span 解题思路 Write a class StockSpanner which collects daily price quotes for some stock, and returns the span of that stock’s price for the current day. The span of the st...

LeetCode: 902. Numbers At Most N Given Digit Set 题目描述 We have a sorted set of digits D, a non-empty subset of {'1','2','3','4','5','6','7','8','9'}. (Note that '0' is not included.) Now, we write ...

LeetCode: 903. Valid Permutations for DI Sequence 题目描述 We are given S, a length n string of characters from the set {'D', 'I'}. (These letters stand for “decreasing” and “increasing”.) A valid perm...