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Commitf79bbc1

Browse files
refactor 59
1 parent56d2949 commitf79bbc1

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2 files changed

+69
-3
lines changed

2 files changed

+69
-3
lines changed

‎src/main/java/com/fishercoder/solutions/_59.java

Lines changed: 65 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -38,4 +38,69 @@ public int[][] generateMatrix(int n) {
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returnmatrix;
3939
}
4040
}
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publicstaticclassSolution2 {
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/**
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* My completely original solution on 10/12/2021.
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*/
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publicint[][]generateMatrix(intn) {
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intdirection =0;
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int[][]matrix =newint[n][n];
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intnum =1;
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inti =0;
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intj =0;
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inteastBoundary =n;
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intsouthBoundary =n;
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intwestBoundary =0;
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intnorthBoundary =0;
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intlimit =n *n;
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while (num <=limit) {
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if (direction %4 ==0) {
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//0 means going east
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for (;j <eastBoundary &&num <=limit;j++) {
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matrix[i][j] =num;
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num++;
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}
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j--;
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direction++;
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eastBoundary--;
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i++;
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}
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if (direction %4 ==1) {
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//1 means going south
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for (;i <southBoundary &&num <=limit;i++) {
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matrix[i][j] =num;
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num++;
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}
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i--;
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direction++;
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southBoundary--;
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j--;
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}
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if (direction %4 ==2) {
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//2 means going west
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for (;j >=westBoundary &&num <=limit;j--) {
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matrix[i][j] =num;
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num++;
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}
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j++;
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direction++;
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westBoundary++;
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i--;
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}
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if (direction %4 ==3) {
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//3 means going north
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for (;i >northBoundary &&num <=limit;i--) {
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matrix[i][j] =num;
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num++;
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}
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i++;
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direction++;
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northBoundary++;
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j++;
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}
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}
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returnmatrix;
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}
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}
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}

‎src/test/java/com/fishercoder/_59Test.java

Lines changed: 4 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -7,16 +7,17 @@
77

88
publicclass_59Test {
99
privatestatic_59.Solution1solution1;
10-
privatestaticint[][]matrix;
10+
privatestatic_59.Solution2solution2;
1111

1212
@BeforeClass
1313
publicstaticvoidsetup() {
1414
solution1 =new_59.Solution1();
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solution2 =new_59.Solution2();
1516
}
1617

1718
@Test
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publicvoidtest1() {
19-
matrix =solution1.generateMatrix(6);
20-
CommonUtils.print2DIntArray(matrix);
20+
CommonUtils.print2DIntArray(solution1.generateMatrix(6));
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CommonUtils.print2DIntArray(solution2.generateMatrix(6));
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}
2223
}

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