摘要： 先上题目：Problem 1606 Format the expressionAccept: 87Submit: 390Time Limit: 1000 mSecMemory Limit : 32768 KBProblem DescriptionOaiei is a good boy who loves math very much, he would like to simplify some mathematical expression, can you help him? For the sake of simplicity, the form of expression he wan 阅读全文

摘要： 先上题目：Problem 1601 Alibaba's treasuresAccept: 332Submit: 636Time Limit: 1000 mSecMemory Limit : 32768 KBProblem DescriptionIn the story of “Alibaba and forty robbers”, Alibaba uses his clever wit to overcome the ferocious enemy, and inherits the huge treasure. There are many treasures which is th 阅读全文

摘要： 先上题目：1213. Cockroaches!Time limit: 1.0 secondMemory limit: 64 MB It's well-known that the most tenacious of life species on the Earth are cockroaches. They live everywhere if only there in food. And as far as they are unpretentious in food you can find them absolutely everywhere. A little Lyosha 阅读全文

摘要： 先上题目：1209. 1, 10, 100, 1000...Time limit: 1.0 secondMemory limit: 64 MBLet's consider an infinite sequence of digits constructed of ascending powers of 10 written one after another. Here is the beginning of the sequence: 110100100010000… You are to find out what digit is located at the definite 阅读全文