| # | Title | Solutions | Video | Difficulty | Tag

|-----|----------------|---------------|--------|-------------|-------------

|1727|[Largest Submatrix With Rearrangements](https://leetcode.com/problems/largest-submatrix-with-rearrangements/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1727.java)||Medium|Greedy, Sort|

|1726|[Tuple with Same Product](https://leetcode.com/problems/tuple-with-same-product/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1726.java)||Medium|Array|

|1725|[Number Of Rectangles That Can Form The Largest Square](https://leetcode.com/problems/number-of-rectangles-that-can-form-the-largest-square/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1725.java)||Easy|Greedy|

|1721|[Swapping Nodes in a Linked List](https://leetcode.com/problems/swapping-nodes-in-a-linked-list/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1721.java)||Medium|LinkedList|

packagecom.fishercoder.solutions;

importjava.util.Arrays;

publicclass_1727 {

publicstaticclassSolution1 {

publicintlargestSubmatrix(int[][]matrix) {

intm =matrix.length;

intn =matrix[0].length;

for (inti =1;i <m;i++) {

for (intj =0;j <n;j++) {

if (matrix[i][j] !=0) {

matrix[i][j] =matrix[i -1][j] +1;

}

}

}

intcount =0;

for (inti =0;i <m;i++) {

Arrays.sort(matrix[i]);

for (intj =1;j <=n;j++) {

count =Math.max(count,j *matrix[i][n -j]);

}

}

returncount;

}

}

}

packagecom.fishercoder;

importcom.fishercoder.common.utils.CommonUtils;

importcom.fishercoder.solutions._1;

importcom.fishercoder.solutions._1727;

importorg.junit.BeforeClass;

importorg.junit.Test;

importstaticorg.junit.Assert.assertArrayEquals;

importstaticorg.junit.Assert.assertEquals;

publicclass_1727Test {

privatestatic_1727.Solution1solution1;

publicstaticvoidsetup() {

solution1 =new_1727.Solution1();

}

publicvoidtest1() {

assertEquals(8,solution1.largestSubmatrix(

CommonUtils.convertLeetCodeIrregularLengths2DArrayInputIntoJavaArray("[0,1,1,1,1,1,1],[1,1,0,1,1,0,1],[1,0,0,1,0,1,1]")));

}

}