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Adding MatrixRemoveRow/Column

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This commit is contained in:
Debucquoy Anthony 2023-05-10 20:02:10 +02:00
parent a472df26ed
commit e7c7065a8d
Signed by: tonitch
GPG Key ID: A78D6421F083D42E
2 changed files with 59 additions and 0 deletions
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26
app/src/main/java/school_project/Utils/Array.java
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@ -10,4 +10,30 @@ public class Array{
} }
return ret; return ret;
} }
public static boolean[][] MatrixRemoveRow(boolean[][] o, int row){
boolean[][] newMatrix = new boolean[o.length - 1][o[0].length];
int newRow = 0;
for (int i = 0; i < o.length; i++) {
if(i == row)
i++;
newMatrix[newRow] = o[i];
newRow++;
}
return newMatrix;
}
public static boolean[][] MatrixRemoveColumn(boolean[][] o, int col){
boolean[][] newMatrix = new boolean[o.length][o[0].length - 1];
for (int i = 0; i < o.length; i++) {
int newCol = 0;
for(int j = 0; j < o[0].length; j++){
if(j == col)
j++;
newMatrix[i][newCol] = o[i][j];
newCol++;
}
}
return newMatrix;
}
} }

33
app/src/test/java/school_project/Utils/ArrayTest.java
View File

@ -23,4 +23,37 @@ class ArrayTest {
a[1][1] = true; a[1][1] = true;
assertArrayEquals(b, c); assertArrayEquals(b, c);
} }
@Test
void matrixRemoveRow() {
boolean[][] a = new boolean[][] {
{true, false, true},
{false, false, false},
{true, false, true},
};
boolean[][] b = new boolean[][] {
{true, false, true},
{true, false, true},
};
boolean[][] result = Array.MatrixRemoveRow(a, 1);
assertArrayEquals(b, result);
}
@Test
void matrixRemoveColumn() {
boolean[][] a = new boolean[][] {
{true, false, true},
{false, false, false},
{true, false, true},
};
boolean[][] b = new boolean[][] {
{true, true},
{false, false},
{true, true},
};
boolean[][] result = Array.MatrixRemoveColumn(a, 1);
assertArrayEquals(b, result);
}
} }