Package g1501_1600.s1591_strange_printer_ii

Class Solution

java.lang.Object

g1501_1600.s1591_strange_printer_ii.Solution

public class Solution
extends Object

1591 - Strange Printer II.<p>Hard</p> <p>There is a strange printer with the following two special requirements:</p> <ul> <li>On each turn, the printer will print a solid rectangular pattern of a single color on the grid. This will cover up the existing colors in the rectangle.</li> <li>Once the printer has used a color for the above operation, <strong>the same color cannot be used again</strong>.</li> </ul> <p>You are given a <code>m x n</code> matrix <code>targetGrid</code>, where <code>targetGrid[row][col]</code> is the color in the position <code>(row, col)</code> of the grid.</p> <p>Return <code>true</code> <em>if it is possible to print the matrix</em> <code>targetGrid</code><em>,</em> <em>otherwise, return</em> <code>false</code>.</p> <p><strong>Example 1:</strong></p> <p><img src="https://assets.leetcode.com/uploads/2021/12/23/print1.jpg" alt="" /></p> <p><strong>Input:</strong> targetGrid = [[1,1,1,1],[1,2,2,1],[1,2,2,1],[1,1,1,1]]</p> <p><strong>Output:</strong> true</p> <p><strong>Example 2:</strong></p> <p><img src="https://assets.leetcode.com/uploads/2021/12/23/print2.jpg" alt="" /></p> <p><strong>Input:</strong> targetGrid = [[1,1,1,1],[1,1,3,3],[1,1,3,4],[5,5,1,4]]</p> <p><strong>Output:</strong> true</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> targetGrid = [[1,2,1],[2,1,2],[1,2,1]]</p> <p><strong>Output:</strong> false</p> <p><strong>Explanation:</strong> It is impossible to form targetGrid because it is not allowed to print the same color in different turns.</p> <p><strong>Constraints:</strong></p> <ul> <li><code>m == targetGrid.length</code></li> <li><code>n == targetGrid[i].length</code></li> <li><code>1 <= m, n <= 60</code></li> <li><code>1 <= targetGrid[row][col] <= 60</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
boolean	isPrintable(int[][] targetGrid)

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

isPrintable

public boolean isPrintable(int[][] targetGrid)