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摘要： B. Long Pathtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputOne day, little Vasya found himself in a maze consisting of(n + 1)rooms, numbered from1to(n + 1). Initially, Vasya is at the first room and to get out of the maze, he needs to get to the( 阅读全文

摘要： C. Triangletime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThere is a right triangle with legs of lengthaandb. Your task is to determine whether it is possible to locate the triangle on the plane in such a way that none of its sides is parallel to 阅读全文

摘要： http://acm.hdu.edu.cn/showproblem.php?pid=1754简单线段树题，单点更新+区间求最大值。 1 #include 2 #include 3 #include 4 using namespace std; 5 const int N=200002; 6 int a[N],ans = 0; 7 struct node 8 { 9 int l,r;10 int Max;11 } tree[4*N];12 void build(int root,int l,int r)13 {14 tree[root].l = l;15 t... 阅读全文