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摘要： 链接：http://codeforces.com/problemset/problem/540/D题目大意：这个岛上有三种生物 r石头 s剪刀 p布求最后只剩一种生物的概率用dp[i][j][k]表示概率石头和剪刀相遇的概率是p=i*j/(i*j+j*k+k*i),剪刀会被吃掉 所以dp[i][j... 阅读全文

摘要： 链接：http://codeforces.com/problemset/problem/540/CYou play a computer game. Your character stands on some level of a multilevel ice cave. In order to m... 阅读全文

摘要： B. School Markstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputLittle Vova studies programming i... 阅读全文

摘要： Problem - 4325 http://acm.hdu.edu.cn/showproblem.php?pid=4325Problem DescriptionAs is known to all, the blooming time and duration varies between diff... 阅读全文

摘要： Problem DescriptionJohn has several lines. The lines are covered on the X axis. Let A is a point which is covered by the most lines. John wants to kno... 阅读全文

摘要： Problem Descriptiondxy has a collection of a series of books called "The Stories of SDOI",There aren(n≤19)books in this series.Every book has a number... 阅读全文

摘要： DescriptionSome of Farmer John'sNcows (1 ≤N≤ 80,000) are having a bad hair day! Since each cow is self-conscious about her messy hairstyle, FJ wants t... 阅读全文

摘要： Painting some colored segments on a line, some previously painted segments may be covered by some the subsequent ones.Your task is counting the segmen... 阅读全文

摘要： http://acm.hdu.edu.cn/showproblem.php?pid=1698Problem DescriptionIn the game of DotA, Pudge’s meat hook is actually the most horrible thing for most o... 阅读全文

摘要： The citizens of Bytetown, AB, could not stand that the candidates in the mayoral election campaign have been placing their electoral posters at all pl... 阅读全文