摘要： Time Limit:1000MSMemory Limit:65536KTotal Submissions:8266Accepted:3507Special JudgeDescriptionYou are given two pots, having the volume ofAandBliters respectively. The following operations can be performed:FILL(i) fill the poti(1 ≤i≤ 2) from the tap;DROP(i) empty the potito the drain;POUR(i,j) pour 阅读全文

摘要： Time Limit:1000MSMemory Limit:65536KTotal Submissions:9519Accepted:5458DescriptionThe 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 suc 阅读全文

摘要： Time Limit:1000MSMemory Limit:65536KTotal Submissions:25950Accepted:8853DescriptionBackgroundThe knight is getting bored of seeing the same black and white squares again and again and has decided to make a journeyaround the world. Whenever a knight moves, it is two squares in one direction and one s 阅读全文

摘要： Time Limit:5000MSMemory Limit:128000KTotal Submissions:27704Accepted:7336DescriptionYou are given a bunch of wooden sticks. Each endpoint of each stick is colored with some color. Is it possible to align the sticks in a straight line such that the colors of the endpoints that touch are of the same c 阅读全文

摘要： Time Limit:3500MSMemory Limit:65536KTotal Submissions:14328Accepted:5393DescriptionA square is a 4-sided polygon whose sides have equal length and adjacent sides form 90-degree angles. It is also a polygon such that rotating about its centre by 90 degrees gives the same polygon. It is not the only p 阅读全文

摘要： Time Limit:2000MSMemory Limit:65536KTotal Submissions:10711Accepted:3182DescriptionFarmer John'sNcows (1 ≤N≤ 100,000) share many similarities. In fact, FJ has been able to narrow down the list of features shared by his cows to a list of onlyKdifferent features (1 ≤K≤ 30). For example, cows exhib 阅读全文

摘要： Time Limit:4000MSMemory Limit:65536KTotal Submissions:27277Accepted:7197DescriptionYou may have heard that no two snowflakes are alike. Your task is to write a program to determine whether this is really true. Your program will read information about a collection of snowflakes, and search for a pair 阅读全文

摘要： Time Limit:5000MSMemory Limit:65536KTotal Submissions:10695Accepted:5185DescriptionConsider equations having the following form:a1x13+ a2x23+ a3x33+ a4x43+ a5x53=0The coefficients are given integers from the interval [-50,50].It is consider a solution a system (x1, x2, x3, x4, x5) that verifies the 阅读全文

摘要： Time Limit:1000MSMemory Limit:65536KTotal Submissions:10083Accepted:4262DescriptionThe Genographic Project is a research partnership between IBM and The National Geographic Society that is analyzing DNA from hundreds of thousands of contributors to map how the Earth was populated.As an IBM researche 阅读全文

摘要： Time Limit:2000MSMemory Limit:30000KTotal Submissions:6988Accepted:1600DescriptionNemo is a naughty boy. One day he went into the deep sea all by himself. Unfortunately, he became lost and couldn't find his way home. Therefore, he sent a signal to his father, Marlin, to ask for help.After checki 阅读全文