摘要： Check the difficulty of problemsTime Limit:2000MSMemory Limit:65536KTotal Submissions:3810Accepted:1666DescriptionOrganizing a programming contest is not an easy job. To avoid making the problems too difficult, the organizer usually expect the contest result satisfy the following two terms:1. All of 阅读全文

摘要： Snowflake Snow SnowflakesTime Limit:4000MSMemory Limit:65536KTotal Submissions:27086Accepted:7138DescriptionYou 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 snowflak 阅读全文

摘要： Flip GameTime Limit:1000MSMemory Limit:65536KTotal Submissions:25328Accepted:10930DescriptionFlip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One side of each piece is white and the other one is black and each piece is lying either it's black 阅读全文