摘要: Description Given an N*N matrix A, whose elements are either 0 or 1. A[i, j] means the number in the i-th row and j-th column. Initially we have A[i, 阅读全文
posted @ 2017-09-03 22:40 HLX_Y 阅读(185) 评论(0) 推荐(0)
摘要: Description N children are sitting in a circle to play a game. The children are numbered from 1 to N in clockwise order. Each of them has a card with 阅读全文
posted @ 2017-09-03 22:30 HLX_Y 阅读(300) 评论(0) 推荐(0)