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ansible what are the differences between version 2, 3, and 4
ansible 从2.9 开始 版本规划有了变化， 找了一篇文章解释了这个原因，记录一下 Ansible - what are the differences between version 2, 3, and 4? - Stack Overflow Previously I used ansible 2.x and now the latest ansible version is 4.x. Having read Ansible RoadmapTopCoder 17403 See All Differences
这题和 https://atcoder.jp/contests/abc189/tasks/abc189_f 是相似的。 首先我们设\(f(mask,number)\)表示考虑若干个数，目前出现的差在\(mask\)中，最后一个数是\(number\)时，数列的期望长度。 但是我们发现这样比较难以转移，因为我们不知道转移过来的状态是否是合法的。（比如当你是roCF1485D Multiples and Power Differences 题解
一道思维题。 首先题目上有 \(1 \leq b_{i,j} \leq 16\)，而要求 \(b_{i,j} \mid a_{i,j}\)，因此我们可以求一下 \([1,16]\) 内所有整数的 \(\operatorname{lcm}\)： \[\operatorname{lcm}(1,2,...,16)=720720<1000000 \]因此我们可以考虑对要求的 \(a_{i,j}\) 做一个黑白染色（就类似于Codeforces Round #719 (Div. 3) D. Same Differences
题目链接：https://codeforces.com/problemset/problem/1520/D 解题思路： 题目要求j-i=aj-ai，变形可得aj-j=ai-i。即意为差值相同即可。由于map只会计入一次相同元素，此处用map计数不能更合适了。 对每个输入的元素，用map[ai-i]记录差值相等元素的个数。对每一个存在差值相同元素的【leetcode】1685. Sum of Absolute Differences in a Sorted Array
题目如下： You are given an integer array nums sorted in non-decreasing order. Build and return an integer array result with the same length as nums such that result[i] is equal to the summation of absolute differences between nums[i] and all th376. Wiggle Subsequence
package LeetCode_376 /** * 376. Wiggle Subsequence * https://leetcode.com/problems/wiggle-subsequence/ * A wiggle sequence is a sequence where the differences between successive numbers strictly alternate between positive and negative. * The first diCodeforces1485 D. Multiples and Power Differences（思维，lcm，构造）
题意： 解法： lc=lcm(1,2,3,...16)<1e6. 由于限制条件是对相邻格子设立的, 对矩阵黑白染色,那么相同颜色就不会互相影响了, 之后将黑色位置设为lc,白色位置设为lc+a[i][j]^4即可, 显然这样一定满足条件. code： #include <bits/stdc++.h> #define int long long using namespaCodeforces Round #701 (Div. 2) D. Multiples and Power Differences
[D. Multiples and Power Differences](https://codeforces.com/contest/1485/problem/D） 题意： 给定一个\(n*m\)的矩阵\(A\)，要求构造出一个\(n*m\)的矩阵\(B\)。要求满足以下条件： \(1≤b_{i,j}≤10^6\); \(b_{i,j}\)是\(a_{i,j}\)的倍数; 矩阵\(B\)中每个元素与相邻任何元素的值之CodeForces - 1485D Multiples and Power Differences （构造+lcm）
CodeForces - 1485D Multiples and Power Differences （构造+lcm） 原题链接 思路： 考虑最特殊的情况: b [ i ] [Codeforces 1485D - Multiples and Power Differences （构造）
Codeforces Round #701 (Div. 2) D. Multiples and Power Differences 题意 给定\(n*m\)的矩阵\(A\)，要求构造出一个\(n*m\)的矩阵\(B\)，满足 \(1\le b_{i,j}\le 10^6\) \(b_{i,j}\)是\(a_{i,j}\)的倍数 矩阵\(B\)中每个元素与相邻任何元素的值之差的绝对值必须是某个正整数[LeetCode] 967. Numbers With Same Consecutive Differences 连续差相同的数字
Return all non-negative integers of length n such that the absolute difference between every two consecutive digits is k. Note that every number in the answer must not have leading zeros except for the number 0 itself. For example, 01 has oneCodeforces 876B：Divisiblity of Differences（数学）
B. Divisiblity of Differences You are given a multiset of n integers. You should select exactly k of them in a such way that the difference between any two of them is divisible by m, or tell that it is impossible. Numbers can be repeated in the orDifferences Between Task And Thread
The Thread class is used for creating and manipulating a thread in Windows. A Task represents some asynchronous operation and is part of the Task Parallel Library, a set of APIs for running tasks asynchronously and in parallel. The task can return a res