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Commit440b096

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update 840
1 parent9d927d7 commit440b096

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2 files changed

+37
-34
lines changed
  • src
    • main/java/com/fishercoder/solutions/firstthousand
    • test/java/com/fishercoder/firstthousand

2 files changed

+37
-34
lines changed

‎src/main/java/com/fishercoder/solutions/firstthousand/_840.java

Lines changed: 23 additions & 20 deletions
Original file line numberDiff line numberDiff line change
@@ -13,33 +13,36 @@ public int numMagicSquaresInside(int[][] grid) {
1313
for (intj =0;j <n -2;j++) {
1414
Set<Integer>set =newHashSet<>();
1515
intsum =grid[i][j] +grid[i][j +1] +grid[i][j +2];
16-
if (sum ==grid[i +1][j] +grid[i +1][j +1] +grid[i +1][j +2]
17-
&&sum ==grid[i +2][j] +grid[i +2][j +1] +grid[i +2][j +2]
18-
19-
&&sum ==grid[i][j] +grid[i +1][j] +grid[i +2][j]
20-
&&sum ==grid[i][j +1] +grid[i +1][j +1] +grid[i +2][j +1]
21-
&&sum ==grid[i][j +2] +grid[i +1][j +2] +grid[i +2][j +2]
22-
23-
&&sum ==grid[i][j] +grid[i +1][j +1] +grid[i +2][j +2]
24-
&&sum ==grid[i][j +2] +grid[i +1][j +1] +grid[i +2][j]
25-
26-
&&set.add(grid[i][j]) &&isLegit(grid[i][j])
27-
&&set.add(grid[i][j +1]) &&isLegit(grid[i][j +1])
28-
&&set.add(grid[i][j +2]) &&isLegit(grid[i][j +2])
29-
&&set.add(grid[i +1][j]) &&isLegit(grid[i +1][j])
30-
&&set.add(grid[i +1][j +1]) &&isLegit(grid[i +1][j +1])
31-
&&set.add(grid[i +1][j +2]) &&isLegit(grid[i +1][j +2])
32-
&&set.add(grid[i +2][j]) &&isLegit(grid[i +2][j])
33-
&&set.add(grid[i +2][j +1]) &&isLegit(grid[i +2][j +1])
34-
&&set.add(grid[i +2][j +2]) &&isLegit(grid[i +2][j +2])
35-
) {
16+
if (isValid(grid,i,j,set,sum)) {
3617
count++;
3718
}
3819
}
3920
}
4021
returncount;
4122
}
4223

24+
privatebooleanisValid(int[][]grid,inti,intj,Set<Integer>set,intsum) {
25+
returnsum ==grid[i +1][j] +grid[i +1][j +1] +grid[i +1][j +2]
26+
&&sum ==grid[i +2][j] +grid[i +2][j +1] +grid[i +2][j +2]
27+
28+
&&sum ==grid[i][j] +grid[i +1][j] +grid[i +2][j]
29+
&&sum ==grid[i][j +1] +grid[i +1][j +1] +grid[i +2][j +1]
30+
&&sum ==grid[i][j +2] +grid[i +1][j +2] +grid[i +2][j +2]
31+
32+
&&sum ==grid[i][j] +grid[i +1][j +1] +grid[i +2][j +2]
33+
&&sum ==grid[i][j +2] +grid[i +1][j +1] +grid[i +2][j]
34+
35+
&&set.add(grid[i][j]) &&isLegit(grid[i][j])
36+
&&set.add(grid[i][j +1]) &&isLegit(grid[i][j +1])
37+
&&set.add(grid[i][j +2]) &&isLegit(grid[i][j +2])
38+
&&set.add(grid[i +1][j]) &&isLegit(grid[i +1][j])
39+
&&set.add(grid[i +1][j +1]) &&isLegit(grid[i +1][j +1])
40+
&&set.add(grid[i +1][j +2]) &&isLegit(grid[i +1][j +2])
41+
&&set.add(grid[i +2][j]) &&isLegit(grid[i +2][j])
42+
&&set.add(grid[i +2][j +1]) &&isLegit(grid[i +2][j +1])
43+
&&set.add(grid[i +2][j +2]) &&isLegit(grid[i +2][j +2]);
44+
}
45+
4346
privatebooleanisLegit(intnum) {
4447
returnnum <=9 &&num >=1;
4548
}

‎src/test/java/com/fishercoder/firstthousand/_840Test.java

Lines changed: 14 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -1,46 +1,46 @@
11
packagecom.fishercoder.firstthousand;
22

33
importcom.fishercoder.solutions.firstthousand._840;
4-
importorg.junit.BeforeClass;
5-
importorg.junit.Test;
4+
importorg.junit.jupiter.api.BeforeEach;
5+
importorg.junit.jupiter.api.Test;
66

7-
importstaticorg.junit.Assert.assertEquals;
7+
importstaticorg.junit.jupiter.api.Assertions.assertEquals;
88

99
publicclass_840Test {
1010
privatestatic_840.Solution1test;
1111
privatestaticint[][]grid;
1212

13-
@BeforeClass
14-
publicstaticvoidsetUp() {
13+
@BeforeEach
14+
publicvoidsetUp() {
1515
test =new_840.Solution1();
1616
}
1717

1818
@Test
1919
publicvoidtest1() {
2020
grid =newint[][]{
21-
{4,3,8,4},
22-
{9,5,1,9},
23-
{2,7,6,2}
21+
{4,3,8,4},
22+
{9,5,1,9},
23+
{2,7,6,2}
2424
};
2525
assertEquals(1,test.numMagicSquaresInside(grid));
2626
}
2727

2828
@Test
2929
publicvoidtest2() {
3030
grid =newint[][]{
31-
{5,5,5},
32-
{5,5,5},
33-
{5,5,5}
31+
{5,5,5},
32+
{5,5,5},
33+
{5,5,5}
3434
};
3535
assertEquals(0,test.numMagicSquaresInside(grid));
3636
}
3737

3838
@Test
3939
publicvoidtest3() {
4040
grid =newint[][]{
41-
{10,3,5},
42-
{1,6,11},
43-
{7,9,2}
41+
{10,3,5},
42+
{1,6,11},
43+
{7,9,2}
4444
};
4545
assertEquals(0,test.numMagicSquaresInside(grid));
4646
}

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