原创 zznuli--1909
Description 小火山和他的朋友岩漿， 分別打算去買商店買一些東西。小火山的起始位置爲（X1, Y1)，終止位置爲（X2, Y2)， 速度爲U; 岩漿的起始位置爲（X3, Y3), 終止位置爲（X4, Y4), 速度爲V， 雙
2020-07-03 13:35:43
原创 HDU----2955
Description The aspiring Roy the Robber has seen a lot of American movies, and knows that the bad guys usually gets
2020-07-03 13:35:43
原创 簡單
Description SVM（Support Vector Machine）is an important classification tool, which has a wide range of applicatio
2020-02-21 10:53:51
原创 HDU----1686
Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. H
2020-02-21 10:53:51
原创 ＨＤＵ1231最大的連續序列和
Description 給定K個整數的序列{ N1, N2, ..., NK }，其任意連續子序列可表示爲{ Ni, Ni+1, ..., Nj }，其中 1 <= i <= j <= K。最大連續子序列是所有連續子序列中元素和最
2020-02-21 10:53:51
原创 河南多校大一訓練賽
Description Your karate club challenged another karate club in your town. Each club enters N players into the match,
2020-02-21 10:53:51
原创 斐波那契數列，大數據
Description You will be given a string which only contains ‘1’; You can merge two adjacent ‘1’ to be ‘2’, or leave t
2020-02-21 10:53:51
原创 HDU----5461水題
Description Given the sequence with integers . Given the integral coefficients and . The fact that select two e
2020-02-21 10:53:41
原创 HDU----1083
Description Consider a group of N students and P courses. Each student visits zero, one or more than one courses. Yo
2020-02-21 10:53:41
原创 簡單ＤＰ
Description Jesus, what a great movie! Thousands of people are rushing to the cinema. However, this is really a
2020-02-21 10:53:41
原创 多校
Description 兩隻青蛙在網上相識了，它們聊得很開心，於是覺得很有必要見一面。它們很高興地發現它們住在同一條緯度線上，於是它們約定各自朝西跳，直到碰面爲止。可是它們出發之前忘記了一件很重要的事情，既沒有問清楚對方的特
2020-02-21 10:53:41
原创 CodeForces 500A
Description New Year is coming in Line World! In this world, there are n cells numbered by integers from 1 to n,
2020-02-21 10:53:41
4
原创 POJ1287——————networking
Description You are assigned to design network connections between certain points in a wide area. You are given a se
2020-02-21 10:53:41
原创 不知道
Description Given a code (not optimized), and necessary inputs, you have to find the output of the code for the i
2020-02-21 10:53:41
原创 UVA____10200
這個就是一個簡單的素數判斷，然後就是求a， b之間素數存在的概率不知道爲什麼就是最後概率後面要+1e-8可能即使double精確度吧 #include<stdio.h> #include<string.h> #include<iostr
2020-02-21 10:53:41