摘要:
题目连接:CodeForces - 543B Let's solve easiest task. We have only one pair of vertices, and we need to calculate smallest amout of edges, such that there 阅读全文
摘要:
链接:http://codeforces.com/contest/364 A:Matrix 关于矩阵。。。 Let's notice that sum in the rectangle (x1, y1, x2, y2) is sum(x1, x2)·sum(y1, y2). Where sum(l, 阅读全文