Jump Game(时空不错,判断条件是点睛之笔)59. Spiral Matrix II(和54是逆问题)
54.SpiralMatrixMedium1349453FavoriteShareGivenamatrixofmxnelements(mrows,ncolumns),returnallelementsofthematrixinspiralorder.Example1:Input:[[1,2,3],[4,5,6],[7,8,9]]Output:[1,2,3,6,9,8,7,4,5]Example2: