47 lines
1.4 KiB
Kotlin
47 lines
1.4 KiB
Kotlin
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class Test48 {
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class Solution {
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fun rotate(matrix: Array<IntArray>): Unit {
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for (i in 0..(matrix.size-1)/2){
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matrix[i] = matrix[matrix.size-1-i]
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.also { matrix[matrix.size-1-i] = matrix[i] }
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}
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for (i in 1..<matrix.size){
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for (j in 0..i){
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matrix[i][j] = matrix[j][i]
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.also { matrix[j][i] = matrix[i][j] }
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}
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}
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}
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}
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fun test() {
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val solution = Solution()
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// 测试用例 1
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val matrix1 = arrayOf(
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intArrayOf(1, 2, 3),
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intArrayOf(4, 5, 6),
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intArrayOf(7, 8, 9)
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)
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solution.rotate(matrix1)
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printMatrix(matrix1) // 预期输出: [[7,4,1],[8,5,2],[9,6,3]]
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// 测试用例 2
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val matrix2 = arrayOf(
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intArrayOf(5, 1, 9, 11),
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intArrayOf(2, 4, 8, 10),
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intArrayOf(13, 3, 6, 7),
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intArrayOf(15, 14, 12, 16)
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)
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solution.rotate(matrix2)
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printMatrix(matrix2) // 预期输出: [[15,13,2,5],[14,3,4,1],[12,6,8,9],[16,7,10,11]]
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}
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// 辅助函数：打印二维矩阵
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fun printMatrix(matrix: Array<IntArray>) {
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matrix.forEach { row ->
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println(row.joinToString(prefix = "[", postfix = "]", separator = ","))
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}
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}
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}
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