Package g0501_0600.s0566_reshape_the_matrix

Class Solution

java.lang.Object
g0501_0600.s0566_reshape_the_matrix.Solution
public class Solution extends java.lang.Object
566 - Reshape the Matrix.

Easy

In MATLAB, there is a handy function called reshape which can reshape an m x n matrix into a new one with a different size r x c keeping its original data.

You are given an m x n matrix mat and two integers r and c representing the number of rows and the number of columns of the wanted reshaped matrix.

The reshaped matrix should be filled with all the elements of the original matrix in the same row-traversing order as they were.

If the reshape operation with given parameters is possible and legal, output the new reshaped matrix; Otherwise, output the original matrix.

Example 1:

Input: mat = [[1,2],[3,4]], r = 1, c = 4

Output: 1,2,3,4

Example 2:

Input: mat = [[1,2],[3,4]], r = 2, c = 4

Output: [[1,2],[3,4]]

Constraints:

  • m == mat.length
  • n == mat[i].length
  • 1 <= m, n <= 100
  • -1000 <= mat[i][j] <= 1000
  • 1 <= r, c <= 300

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int[][]
    matrixReshape(int[][] mat, int r, int c)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • matrixReshape

      public int[][] matrixReshape(int[][] mat, int r, int c)