匡子语

摘要： 1. 无重复Suppose a sorted array is rotated at some pivot unknown to you beforehand.(i.e.,0 1 2 4 5 6 7might become4 5 6 7 0 1 2).Find the minimum element... 阅读全文

摘要： Jump Game (middle)Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array repr... 阅读全文

摘要： Given a collection of intervals, merge all overlapping intervals.For example,Given[1,3],[2,6],[8,10],[15,18],return[1,6],[8,10],[15,18].思路：开始想用线段树，后来想... 阅读全文

摘要： 很郁闷的表示我的opencv放在 D:\\program files 里面路径有个空格，导致我不得不把整个opencv又拷贝到了一个没有空格的路径下面命名为opencvForQt网上有各种用CMake的教程，但实际上没有那么复杂，只要在pro文件里面加入包含文件和库文件即可。即加入下面的语句。我用的... 阅读全文

摘要： 折腾了两个小时，太久没用了，找了半天的感觉。先是在视频播放的代码基础上加选择视频的按钮，开始总是显示两个框，后来发现需要用QSplitter来实现同时有多个框的情况。把中心窗口设为这个splitter就可以了：setCentralWidget(splitter); 注意，这里不能用layout.再然... 阅读全文

摘要： Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be changed. It doesn't mat... 阅读全文

摘要： You are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?思路：我的思路，先沿对角线对称，再左右... 阅读全文

摘要： Given a sorted array of integers, find the starting and ending position of a given target value.Your algorithm's runtime complexity must be in the ord... 阅读全文

摘要： Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in or... 阅读全文

摘要： Follow up for "Search in Rotated Sorted Array":What ifduplicatesare allowed?Would this affect the run-time complexity? How and why?Write a function to... 阅读全文