摘要:
题目大意: Description There is a rectangular room, covered with square tiles. Each tile is colored either red or black. A man is standing on a black tile. 阅读全文
摘要:
题目大意: 大年初一,Alice带上拜年礼物去给N-1位亲朋好友长辈拜年,亲友真多啊,是个大家族。由于Alice才2岁,力气不大,每次只能拿一份礼物,拜完年之后,要回家取第二份礼物,然后去下一家拜年(无语了)。为了表示对亲朋长辈的尊敬,Alice每次都从家步行去到对方家里,拜完年由爸爸骑自行车带回家 阅读全文