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DescriptionThis problem is a reverse case of theproblem 2996. You are given the output of the problem H and your task is to find the corresponding inp... 阅读全文
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DescriptionA robot has been programmed to follow the instructions in its path. Instructions for the next direction the robot is to move are laid down ... 阅读全文
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The first line of input is K, the number of test cases. Each test case starts with one line consisting of two integers, 1 Whereis one ofL: turn lef... 阅读全文
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亡命逃窜时间限制：1000ms | 内存限制：65535KB难度：4描述 从前有个叫hck的骑士，为了救我们美丽的公主，潜入魔王的老巢，够英雄吧。不过英雄不是这么好当的。这个可怜的娃被魔王抓住了，倍受折磨，生死一线。有一天魔王出去约会了，这可是一个千载难逢的逃命机会。你现在的任务就是判断一下这个英雄... 阅读全文
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Let S = s1 s2...s2n be a well-formed string of parentheses. S can be encoded in two different ways:q By an integer sequence P = p1 p2...pn where pi is... 阅读全文
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本题中最多5个命题变项：p,q,r,s,t每个有0,1两种取值，所以总共32种情况，分别枚举即可。对于每种情况，计算表达式的值，如果有结果为0的则输出not难点在于如何计算表达式的值，我们采用递归的方法，把表达式分为一或两个子表达式，并把参数end（本表达式的结束位置）传给上一层，一遍上一层获取第二... 阅读全文
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DescriptionAccounting for Computer Machinists (ACM) has sufferred from the Y2K bug and lost some vital data for preparing annual report for MS Inc.All... 阅读全文
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#include #include using namespace std;int main(){ double n,p; while (cin>>n>>p) cout=1 and an integer p>= 1 you have to write a program t... 阅读全文
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The game “The Pilots Brothers: following the stripy elephant” has a quest where a player needs to open a refrigerator.There are 16 handles on the refr... 阅读全文
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/*代码一：DFS+Enum*///Memory Time //240K 344MS //本题只要求输出翻转的次数，因此BFS或DFS都适用#includeusing namespace std;bool chess[6][6]={false};//利用的只有中心的4x4bool flag;in... 阅读全文