链接:CF360B 题目: B. Levko and Array time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Levko has an array that consists of integers: a1, a2, ... , an. But he doesn’t like this array at all. Levk…

刚才面试了一个蛮有意思的DP题目,脑子断片,没写出来,不过早上状态还是蛮好的 一个长度为n的序列最多改变k次,使相邻两数之差绝对值的最大值最小 三维的dp我先尝试写一下 Codeforces 360B Levko and Array 其实是n^2logm的,太nb了 去二分答案这个很好想,因为既然这个数满足,大于它肯定满足,然后就是去判断这个数字存不存在了.很容易想到贪心,但是贪心会有个问题,就是你无法确定你要修改的哪个数,很容易你就可以找到自己的bug.最后这个是个dp,dp[i]表示从n到i…

Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). Find the minimum element. You may assume no duplicate exists in the array. class Solution { public: int f…

Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]). You are given a target value to search. If found in the array return its index, otherwise return -1.…

Levko and Array time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Levko has an array that consists of integers: a1, a2, ... , an. But he doesn’t like this array at all. Levko thinks that the…

MAX Average Problem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5825    Accepted Submission(s): 1446 Problem Description Consider a simple sequence which only contains positive integers as…

Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]). You are given a target value to search. If found in the array return its index, otherwise return -1.…

Given an array of integers nums sorted in ascending order, find the starting and ending position of a given target value. Your algorithm's runtime complexity must be in the order of O(log n). If the target is not found in the array, return [-1, -1].…

Search in Rotated Sorted Array Total Accepted: 28132 Total Submissions: 98526My Submissions Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a target value to s…

Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a target value to search. If found in the array return its index, otherwise return -1. You may assume no duplic…