给定2D矩阵:
matrix = [
[ 1, 2, 3, 4 ],
[ 5, 6, 7, 8 ],
[ 9, 10, 11, 12 ],
[ 13, 14, 15, 16 ]
]
Run Code Online (Sandbox Code Playgroud)
我们如何逆时针旋转矩阵,以便像这样推动值?
matrix = [
[ 2, 3, 4, 8 ]
[ 1, 7, 11, 12 ]
[ 5, 6, 10, 16 ]
[ 9, 13, 14, 15 ]
]
Run Code Online (Sandbox Code Playgroud)
这个问题不是重复this&this因为我想要做到的,是在逆时针旋转时尚的值.
我当前的实现仅以逆时针方式打印出值,但它不会旋转值.
layers = [_rows, _cols].min / 2
r1, r2, c3, c4 = 0, _rows, _cols, …Run Code Online (Sandbox Code Playgroud)假设我有这个数组:
[0, 1, 4], [2, 3]
Run Code Online (Sandbox Code Playgroud)
我怎样才能合并它们以获得:
[0,2], [0,3], [1,2], [1,3], [4,2], [4,3]
Run Code Online (Sandbox Code Playgroud)
我试过:
[0, 1, 4], [2, 3]
Run Code Online (Sandbox Code Playgroud)
但我得到了:
[[0, 2], [1, 3], [4, nil]]
Run Code Online (Sandbox Code Playgroud)
有任何想法吗?