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Count the Colors Time Limit: 2 Seconds      Memory Limit: 65536 KB Painting some colored segments on a line, some previously painted segments may be covered by some the subsequent ones. Your

A. Sereja and Coat Rack time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Sereja owns a restaurant for n peopl

B. Sereja and Suffixes time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Sereja has an array a, consisting of 

Description The HR manager was disappointed again. The last applicant failed the interview the same way as 24 previous ones. "Do I give such a hard task?" — the HR manager thought. "Just raise numb

Input 1000 1000000 Output 1011.060722383550382782399454922040 Description The city administration of IT City decided to fix up a symbol of scientific and technical progress in the ci

Description The numbers of all offices in the new building of the Tax Office of IT City will have lucky numbers. Lucky number is a number that consists of digits 7 and 8 only. Find the maximum num

Hexagons! Description After a probationary period in the game development company of IT City Petya was included in a group of the programmers that develops a new turn-based strategy game resem

Selection of Personnel DescriptionOne company of IT City decided to create a group of innovative developments consisting from 5 to 7 people and hire new employees for it. After placing an advertismen

1214 - Large Division     PDF (English) Statistics Forum Time Limit: 1 second(s) Memory Limit: 32 MB Given two integers, a and b, you should check whether a is

Big Number Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 6776    Accepted Submission(s): 4678 Problem Description As we know, Big Num

Divisibility Description IT City company developing computer games invented a new way to reward its employees. After a new game release users start buying it actively, and the company tracks t

Indivisibility Description IT City company developing computer games decided to upgrade its way to reward its employees. Now it looks the following way. After a new game release users start bu

Forecast Description The Department of economic development of IT City created a model of city development till year 2100. To prepare report about growth perspectives it is required to get gr

Game Description There is a legend in the IT City college. A student that failed to answer all questions on the game theory exam is given one more chance by his professor. The student has to pla

[1647] 又一道简单题 时间限制: 5000 ms　内存限制: 65535 K 问题描述 输入一个四个数字组成的整数 n,你的任务是数一数有多少种方法,恰好修改一个数字,把它 变成一个完全平方数(不能把首位修改成 0)。比如 n=7844,有两种方法:3844=62^2和 7744=88^2。 输入 输入第一行为整数 T

Ladygod Description 有一天人诹Lee在随手帮女神做题，突然女神发现了自己演算纸上的一个式子，但是式子只有两个加数却没有结果，最近在学不同进制加减法的女神忘了这个两个数字是多少进制了（只记得是小于等于$10$），但是她很好奇在可能的多少进制下这个式子得到的答案长度最长，为了从人赢Lee手中抢走女神，你需要快速计算出这个答案，例如$78+87=？$ 在$10$进制下

素数回文 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 16501    Accepted Submission(s): 3681 Problem Description xiaoou33对既是素数又是回文的数特别感兴趣

B. Dima and To-do List time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You helped Dima to have a great weeke

Chessboard Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 916    Accepted Submission(s): 388 Problem Description Consider the prob

G - Harmonic Number (II) Time Limit:3000MS     Memory Limit:32768KB     64bit IO Format:%lld & %llu Description I was trying to solve problem '1234 - Harmonic Number', I wrote the f

1354 - IP Checking PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB An IP address is a 32 bit address formatted in the following way

1294 - Positive Negative Sign PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB Given two integers: n and m and n is divisible by 2m,

Exam Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1034    Accepted Submission(s): 514 Problem Description As this term is going to e

1297 - Largest Box PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB In the following figure you can see a rectangular card. The widt

1005 - Rooks PDF (English) Statistics Forum Time Limit: 1 second(s) Memory Limit: 32 MB A rook is a piece used in the game of chess which is played on a boa

Candy Sharing Game Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 4452    Accepted Submission(s): 2722 Problem Description A numbe

1078 - Integer Divisibility PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB If an integer is not divisible by 2 or 5, some multiple

I Think I Need a Houseboat Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 11438    Accepted Submission(s): 3200 Problem Description

1148 - Mad Counting PDF (English) Statistics Forum Time Limit: 0.5 second(s) Memory Limit: 32 MB Mob was hijacked by the mayor of the Town "TruthTown"

Dancing Stars on Me Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 600    Accepted Submission(s): 319 Problem Description The sky wa

1043 - Triangle Partitioning PDF (English) Statistics Forum Time Limit: 0.5 second(s) Memory Limit: 32 MB See the picture below. You are given AB, AC and B

Dima and Guards Time Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Description Nothing has changed since the last round. Dima and Inna still love

decimal system Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4272    Accepted Submission(s): 2415 Problem Description As we know

第39阶台阶 小明刚刚看完电影《第39级台阶》，离开电影院的时候，他数了数礼堂前的台阶数，恰好是39级!  站在台阶前，他突然又想着一个问题：  如果我每一步只能迈上1个或2个台阶。先迈左脚，然后左右交替，最后一步是迈右脚，也就是说一共要走偶数步。那么，上完39级台阶，有多少种不同的上法呢？ 代码： /*0代表左脚，1代表右脚；*/ #include #include in

Cube Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 1736    Accepted Submission(s): 1381 Problem Description Cowl is good at solving m

天气情况 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 717    Accepted Submission(s): 294 Problem Description 如果我们把天气分为雨天，阴天和晴天3种，在给定各种天气