https://abc093.contest.atcoder.jp/tasks/arc094_a?lang=en 思路题还是不太会做哈.感觉数据不大,一开始dfs做但是发现不是最优解,一想确实是这么一回事,然后转bfs,但是测第三组数据的时候就能看出来超时了. 其实这题仔细想想,只有两种情况最小值+2,一是大.中值相等时,如果最小值+2可以达到全部相等,或者比另两个大1然后另两个各+1:二是大值比小值大超过1,最后会达到一所说的局面. #include<iostream> #include&l…

A. Comparing Two Long Integers 题目连接: http://www.codeforces.com/contest/616/problem/A Description You are given two very long integers a, b (leading zeroes are allowed). You should check what number a or b is greater or determine that they are equal.…

引言 数学计算的模拟类题目,往往是要求实现某种计算(比如两数相除),实现的过程中会有所限定,比如不允许乘法等等. 这类题目首先要注意计算过程中本身的特殊情况.比如求相除,则必须首先反映过来除数不能为0. 其次要记得考虑负数的情况,如果计算范围不单单是整数,还要考虑double的比较方式. 最后要注意越界情况,这个是最容易犯错的,只能具体问题具体分析. 例题 1 不用"+ - * / "做加法 这道题来自于剑指Offer,为了归类,我把它放到了这里. 面试题 47(*),不用加减乘除做加…

Nasty Hacks Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3049    Accepted Submission(s): 2364 Problem Description You are the CEO of Nasty Hacks Inc., a company that creates small pieces of…

A. Anton and Danik time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Anton likes to play chess, and so does his friend Danik. Once they have played n games in a row. For each game it's known…

A. Watching a movie time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You have decided to watch the best moments of some movie. There are two buttons on your player: Watch the current minute…

Servers time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output There are n servers in a laboratory, each of them can perform tasks. Each server has a unique id - integer from 1 to n. It is known…

A. Alyona and copybooks time limit per test: 1 second memory limit per test: 256 megabytes input: standard input output: standard output Little girl Alyona is in a shop to buy some copybooks for school. She study four subjects so she wants to have eq…

D. Sea Battle time limit per test: 1 second memory limit per test :256 megabytes input: standard input output: standard output Galya is playing one-dimensional Sea Battle on a 1 × n grid. In this game a ships are placed on the grid. Each of the ships…

Description 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 the number of left parentheses before the ith right parenthesis in S (P-sequence). q B…

Fun With Fractions Time Limit: 1000ms, Special Time Limit:2500ms, Memory Limit:65536KB Total submit users: 152, Accepted users: 32 Problem 12878 : No special judgement Problem description A rational number can be represented as the ratio of two integ…

http://codeforces.com/contest/465/problem/C Codeforces Round #265 (Div. 2) C Codeforces Round #265 (Div. 1) A http://codeforces.com/contest/464/problem/A C. No to Palindromes! time limit per test 1 second memory limit per test 256 megabytes input sta…

B. New Year and Old Property time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output The year 2015 is almost over. Limak is a little polar bear. He has recently learnt about the binary system. He…

Numbers That Count Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 20396   Accepted: 6817 Description "Kronecker's Knumbers" is a little company that manufactures plastic digits for use in signs (theater marquees, gas station price…

Crossword Answers Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 869   Accepted: 405 Description A crossword puzzle consists of a rectangular grid of black and white squares and two lists of definitions (or descriptions). One list of de…

Packets Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 47750 Accepted: 16182 Description A factory produces products packed in square packets of the same height h and of the sizes 1*1, 2*2, 3*3, 4*4, 5*5, 6*6. These products are always de…

题目链接: Basic Data Structure Time Limit: 7000/3500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 207    Accepted Submission(s): 41 Problem Description Mr. Frog learned a basic data structure recently, which is called…

Problem E. Easy ProblemsetInput file: easy.in Output file: easy.outPerhaps one of the hardest problems of any ACM ICPC contest is to create a problemset with a reasonable number of easy problems. On Not Easy European Regional Contest this problem is so…

Read Phone Number Time Limit:1000MS     Memory Limit:64000KB     64bit IO Format:%lld & %llu Submit Status Practice ACdream 1188 Description Do you know how to read the phone numbers in English? Now let me tell you. For example, In China, the phone n…

Prison Transfer Time Limit: 1000MS   Memory Limit: 262144KB   64bit IO Format: %I64d & %I64u Submit Status Description The prison of your city has n prisoners. As the prison can't accommodate all of them, the city mayor has decided to transfer c of t…

The Android University ACM Team Selection Contest Time Limit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述  Now it's 20000 A.D., and the androids also participate in the ACM Inter-national Collegiate Programming Contest (ACM/ICPC). In order to sele…

Problem E: Graphical Editor Time Limit: 1 Sec  Memory Limit: 64 MBSubmit: 2  Solved: 2[Submit][Status][Web Board] Description Graphical editors such as Photoshop allow us to alter bit-mapped images in the same way that text editors allow us to modify…

Problem D: LC-Display Time Limit: 1 Sec  Memory Limit: 64 MBSubmit: 14  Solved: 3[Submit][Status][Web Board] Description A friend of yours has just bought a new computer. Before this, the most powerful machine he ever used was a pocket calculator. He…

Problem B: Minesweeper Time Limit: 1 Sec  Memory Limit: 64 MBSubmit: 29  Solved: 7[Submit][Status][Web Board] Description Minesweeper Have you ever played Minesweeper? This cute little game comes with a certain operating system whose name we can't re…

E. Correct Bracket Sequence Editor time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Recently Polycarp started to develop a text editor that works only with correct bracket sequences (abbrev…

C. Epidemic in Monstropolis time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output There was an epidemic in Monstropolis and all monsters became sick. To recover, all monsters lined up in queue fo…

Sequence I Time Limit: 3000/1500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1013    Accepted Submission(s): 393 Problem Description Mr. Frog has two sequences a1,a2,⋯,an and b1,b2,⋯,bm and a number p. He wants t…

A. The New Year: Meeting Friends time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output There are three friend living on the straight line Ox in Lineland. The first friend lives at the point x1, t…

A. Broken Clock time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given a broken clock. You know, that it is supposed to show time in 12- or 24-hours HH:MM format. In 12-hours format…

A. Vitya in the Countryside time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Every summer Vitya comes to visit his grandmother in the countryside. This summer, he got a huge wart. Every gran…