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The ministers of the cabinet were quite upset by the message from the Chief of Security stating that they would all have to change the four-digit room numbers on their offices.— It is a matter of security to change such things every now and then, to keep

The vast power system is the most complicated man-made system and the greatest engineering innovation in the 20th century. The following diagram shows a typical 14 bus power system. In real world, the power system may contains hundreds of buses and thousan

自己一开始没咋看明白，很多知识点都不知道。转载两份代码。第一份：出处：http://exp-blog.com大佬思想：题目大意：把一个完全图分成两部分，使得连接这两部分边的权和最大。解题思路：图论的无向完全图的最大割问题 （做网络最大流的时候同学们应该看过最小割，所以别问我什么是最大割了。。。不懂的百度去。。。）可以用 随机化算法 Random Algorithm 去做一开始我没读懂题，以为是求最大权。。。傻呼呼的用最了最小生成树的算法去做= =一直RERERE。。。还以为是数组开得不

It’s Saturday today, what day is it after 11 + 22 + 33 + … + NN days?InputThere are multiple test cases. The first line of input contains an integer T indicating the number of test cases. For each test case:There is only one line containing one integer

Complete the ternary calculation.InputThere are multiple test cases. The first line of input contains an integer T indicating the number of test cases. For each test case:There is a string in the form of “number1 operatora number2 operatorb number3”. Ea

As we all know, Coach Gao is a talented chef, because he is able to cook M dishes in the same time. Tonight he is going to have a hearty dinner with his girlfriend at his home. Of course, Coach Gao is going to cook all dishes himself, in order to show off

There are N little kids sitting in a circle, each of them are carrying some java beans in their hand. Their teacher want to select M kids who seated in M consecutive seats and collect java beans from them.The teacher knows the number of java beans each ki

题目：Break Standard WeightTime Limit: 2000 msMemory Limit: 65536 KBThe balance was the first mass measuring instrument invented. In its traditional form, it consists of a pivoted horizontal lever of equal length arms, called the beam, with a weighing pan,