作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 利用河图规律 暴力解法 日期 题目地址:https://leetcode.com/problems/magic-squares-in-grid/description/ 题目描述 A 3 x 3 magic square is a 3 x 3 grid filled with distinct numbers from 1 to 9 such tha…
开头 这是每周比赛中的第一道题,博主试了好几次坑后才勉强做对了,第二道题写的差不多结果去试时结果比赛已经已经结束了(尴尬),所以今天只记录第一道题吧 题目原文 Magic Squares In Grid A 3 x 3 magic square is a 3 x 3 grid filled with distinct numbers from 1 to 9 such that each row, column, and both diagonals all have the same sum.…
题目链接:https://leetcode.com/problems/magic-squares-in-grid/description attention:注意给定的数字不一定是1-9. time:5ms 本人的解法过于粗糙,看出了中间必须是5,然后比较每行每列每对角线的值是否相等. class Solution { public: int numMagicSquaresInside(vector<vector<int>>& grid) { int n = grid.si…
[RAC] RAC For W2K8R2 安装--grid的安装(四) 一.1 BLOG文档结构图 一.2 前言部分 一.2.1 导读 各位技术爱好者,看完本文后,你可以掌握如下的技能,也可以学到一些其它你所不知道的知识,~O(∩_∩)O~: ① RAC for windows 2008R2 的安装 ② rac环境下共享存储的规划和搭建 ③ starwind软件的应用 ④ VMware workstation 如何做共享存储 ⑤ rac数据的静默安装和dbca静默建库 ⑥ rac数据库在w…
problem 977. Squares of a Sorted Array solution: class Solution { public: vector<int> sortedSquares(vector<int>& A) { for(auto &a:A) a *=a; sort(A.begin(), A.end()); return A; } }; 参考1. Leetcode_easy_977. Squares of a Sorted Array; 完…
A 3 x 3 magic square is a 3 x 3 grid filled with distinct numbers from 1 to 9 such that each row, column, and both diagonals all have the same sum. Given an grid of integers, how many 3 x 3 "magic square" subgrids are there? (Each subgrid is co…