HDOJ(HDU).1015 Safecracker [从零开始DFS(2)] 从零开始DFS HDOJ.1342 Lotto [从零开始DFS(0)] - DFS思想与框架/双重DFS HDOJ.1010 Tempter of the Bone [从零开始DFS(1)] -DFS四向搜索/奇偶剪枝 HDOJ(HDU).1015 Safecracker [从零开始DFS(2)] -DFS四向搜索变种 HDOJ(HDU).1016 Prime Ring Problem (DFS) [从零开始DFS…
题目链接:HDU - 1015 === Op tech briefing, 2002/11/02 06:42 CST === "The item is locked in a Klein safe behind a painting in the second-floor library. Klein safes are extremely rare; most of them, along with Klein and his factory, were destroyed in World…
Problem Description === Op tech briefing, 2002/11/02 06:42 CST === "The item is locked in a Klein safe behind a painting in the second-floor library. Klein safes are extremely rare; most of them, along with Klein and his factory, were destroyed in Wo…
首先介绍一下matlab里的符号计算 符号变量可以看成是数学中含参数 的表达式中的参数 matlab能进行像(a+b)(a-b)=a^2-b^2这样的计算 要进行符号计算首先要定义符号变量 定义符号对象的命令是syms syms可以将多个字符转化为符号变量 比如syms x y z; syms a b fab = (a + b)*(a - b) 符号变量申明 下面介绍一些符号计算常用的命令~~~ collect 合并同类项expand 展开表达式factor 因式分解numden 得到表达式的分…
题目链接: http://poj.org/problem?id=1015 Jury Compromise Time Limit: 1000MSMemory Limit: 65536K 问题描述 In Frobnia, a far-away country, the verdicts in court trials are determined by a jury consisting of members of the general public. Every time a trial is…