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Commitc0356e3

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refactor 56
1 parentf79d6e4 commitc0356e3

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2 files changed

+41
-54
lines changed

2 files changed

+41
-54
lines changed

‎src/main/java/com/fishercoder/solutions/_56.java

Lines changed: 17 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -1,33 +1,36 @@
11
packagecom.fishercoder.solutions;
22

3-
importcom.fishercoder.common.classes.Interval;
4-
53
importjava.util.ArrayList;
6-
importjava.util.Collections;
4+
importjava.util.Arrays;
75
importjava.util.List;
86

97
publicclass_56 {
108

119
publicstaticclassSolution1 {
12-
publicList<Interval>merge(List<Interval>intervals) {
13-
if (intervals.size() <=1) {
10+
publicint[][]merge(int[][]intervals) {
11+
if (intervals.length <=1) {
1412
returnintervals;
1513
}
1614

17-
Collections.sort(intervals, (o1,o2) ->o1.start -o2.start);
15+
Arrays.sort(intervals, (o1,o2) ->o1[0] -o2[0]);
1816

19-
List<Interval>result =newArrayList();
20-
for (inti =0;i <intervals.size();i++) {
21-
intstart =intervals.get(i).start;
22-
intend =intervals.get(i).end;
23-
while (i <intervals.size() &&end >=intervals.get(i).start) {
24-
end =Math.max(end,intervals.get(i).end);
17+
List<int[]>result =newArrayList();
18+
for (inti =0;i <intervals.length;i++) {
19+
intstart =intervals[i][0];
20+
intend =intervals[i][1];
21+
while (i <intervals.length &&end >=intervals[i][0]) {
22+
end =Math.max(end,intervals[i][1]);
2523
i++;
2624
}
27-
result.add(newInterval(start,end));
25+
result.add(newint[]{start,end});
2826
i--;
2927
}
30-
returnresult;
28+
int[][]finalResult =newint[result.size()][2];
29+
for (inti =0;i <result.size();i++) {
30+
finalResult[i][0] =result.get(i)[0];
31+
finalResult[i][1] =result.get(i)[1];
32+
}
33+
returnfinalResult;
3134
}
3235
}
3336

Lines changed: 24 additions & 40 deletions
Original file line numberDiff line numberDiff line change
@@ -1,51 +1,35 @@
11
packagecom.fishercoder;
22

3-
importcom.fishercoder.common.classes.Interval;
43
importcom.fishercoder.solutions._56;
5-
importjava.util.ArrayList;
6-
importjava.util.List;
74
importorg.junit.BeforeClass;
85
importorg.junit.Test;
96

107
importstaticorg.junit.Assert.assertEquals;
118

129
publicclass_56Test {
13-
privatestatic_56.Solution1solution1;
14-
privatestaticList<Interval>intervals;
15-
privatestaticList<Interval>expected;
10+
privatestatic_56.Solution1solution1;
11+
privatestaticint[][]intervals;
12+
privatestaticint[][]expected;
13+
14+
@BeforeClass
15+
publicstaticvoidsetup() {
16+
solution1 =new_56.Solution1();
17+
}
18+
19+
@Test
20+
publicvoidtest1() {
21+
intervals =newint[][]{
22+
{2,3},
23+
{5,5},
24+
{2,2},
25+
{3,4},
26+
{3,4}
27+
};
28+
expected =newint[][]{
29+
{2,4},
30+
{5,5}
31+
};
32+
assertEquals(expected,solution1.merge(intervals));
33+
}
1634

17-
@BeforeClass
18-
publicstaticvoidsetup() {
19-
solution1 =new_56.Solution1();
20-
}
21-
22-
@Test
23-
publicvoidtest1() {
24-
intervals =newArrayList();
25-
intervals.add(newInterval(2,3));
26-
intervals.add(newInterval(5,5));
27-
intervals.add(newInterval(2,2));
28-
intervals.add(newInterval(3,4));
29-
intervals.add(newInterval(3,4));
30-
31-
expected =newArrayList<>();
32-
expected.add(newInterval(2,4));
33-
expected.add(newInterval(5,5));
34-
assertEquals(expected,solution1.merge(intervals));
35-
}
36-
37-
@Test
38-
publicvoidtest2() {
39-
intervals =newArrayList();
40-
intervals.add(newInterval(1,3));
41-
intervals.add(newInterval(2,6));
42-
intervals.add(newInterval(8,10));
43-
intervals.add(newInterval(15,18));
44-
45-
expected =newArrayList<>();
46-
expected.add(newInterval(1,6));
47-
expected.add(newInterval(8,10));
48-
expected.add(newInterval(15,18));
49-
assertEquals(expected,solution1.merge(intervals));
50-
}
5135
}

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