[摘要] Count the ColorsTime Limit:2 Seconds Memory Limit:65536 KBPainting some colored segments on a line, some previously painted segments may be covered by[全文]
[摘要] 順時針打印矩陣Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order.For example,Given the following matrix:[全文]
