1914. Cyclically Rotating a Grid Medium
1/**
2 * [1914] Cyclically Rotating a Grid
3 *
4 * You are given an m x n integer matrix grid, where m and n are both even integers, and an integer k.
5 *
6 * The matrix is composed of several layers, which is shown in the below image, where each color is its own layer:
7 *
8 * <img alt="" src="https://assets.leetcode.com/uploads/2021/06/10/ringofgrid.png" style="width: 231px; height: 258px;" />
9 *
10 * A cyclic rotation of the matrix is done by cyclically rotating each layer in the matrix. To cyclically rotate a layer once, each element in the layer will take the place of the adjacent element in the counter-clockwise direction. An example rotation is shown below:
11 * <img alt="" src="https://assets.leetcode.com/uploads/2021/06/22/explanation_grid.jpg" style="width: 500px; height: 268px;" />
12 * Return the matrix after applying k cyclic rotations to it.
13 *
14 *
15 * Example 1:
16 * <img alt="" src="https://assets.leetcode.com/uploads/2021/06/19/rod2.png" style="width: 421px; height: 191px;" />
17 *
18 * Input: grid = [[40,10],[30,20]], k = 1
19 * Output: [[10,20],[40,30]]
20 * Explanation: The figures above represent the grid at every state.
21 *
22 *
23 * Example 2:
24 * <img alt="" src="https://assets.leetcode.com/uploads/2021/06/10/ringofgrid5.png" style="width: 231px; height: 262px;" /> <img alt="" src="https://assets.leetcode.com/uploads/2021/06/10/ringofgrid6.png" style="width: 231px; height: 262px;" /> <img alt="" src="https://assets.leetcode.com/uploads/2021/06/10/ringofgrid7.png" style="width: 231px; height: 262px;" />
25 *
26 *
27 * Input: grid = [[1,2,3,4],[5,6,7,8],[9,10,11,12],[13,14,15,16]], k = 2
28 * Output: [[3,4,8,12],[2,11,10,16],[1,7,6,15],[5,9,13,14]]
29 * Explanation: The figures above represent the grid at every state.
30 *
31 *
32 *
33 * Constraints:
34 *
35 *
36 * m == grid.length
37 * n == grid[i].length
38 * 2 <= m, n <= 50
39 * Both m and n are even integers.
40 * 1 <= grid[i][j] <=^ 5000
41 * 1 <= k <= 10^9
42 *
43 */
44pub struct Solution {}
45
46// problem: https://leetcode.com/problems/cyclically-rotating-a-grid/
47// discuss: https://leetcode.com/problems/cyclically-rotating-a-grid/discuss/?currentPage=1&orderBy=most_votes&query=
48
49// submission codes start here
50
51impl Solution {
52 pub fn rotate_grid(grid: Vec<Vec<i32>>, k: i32) -> Vec<Vec<i32>> {
53
54 }
55}
56
57// submission codes end
58
59#[cfg(test)]
60mod tests {
61 use super::*;
62
63 #[test]
64 fn test_1914() {
65 }
66}
67
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