Description Alice owns a construction company in the town of Norainia, famous for its unusually dry weather. In fact, it only rains a few days per year there. Because of this phenomenon, many residents of Norainia neglect to do roof repairs until lea…
Contest2073 - 湖南多校对抗赛(2015.04.06) Problem A: (More) Multiplication Time Limit: 1 Sec Memory Limit: 128 MBSubmit: 85 Solved: 47[Submit][Status][Web Board] Description Educators are always coming up with new ways to teach math to students. In 2011, a…
B. Drazil and Tiles 题目连接: http://codeforces.com/contest/516/problem/B Description Drazil created a following problem about putting 1 × 2 tiles into an n × m grid: "There is a grid with some cells that are empty and some cells that are occupied. You s…
题 Today, Wet Shark is given n integers. Using any of these integers no more than once, Wet Shark wants to get maximum possible even (divisible by 2) sum. Please, calculate this value for Wet Shark. Note, that if Wet Shark uses no integers from the n …
题 There are n sharks who grow flowers for Wet Shark. They are all sitting around the table, such that sharks i andi + 1 are neighbours for all i from 1 to n - 1. Sharks n and 1 are neighbours too. Each shark will grow some number of flowers si. For i…
1005: Coffin Tiles Time Limit: 1 Sec Memory Limit: 128 MB Submit: 2 Solved: 2 Description The Pumpkin King has a great idea for this Christmas: Personalized coffins for all the good little boys and girls! To make them extra special, Jack ha…
