摘要：
Implement strStr().Returns a pointer to the first occurrence of needle in haystack, or null if needle is not part of haystack.此题我觉得并不是真要你写出kmp算法。 指针暴力... 阅读全文
摘要：
Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area.穷举很难。之前做Largest Rectangle in Hist... 阅读全文
摘要：
Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in the hist... 阅读全文