forked from adnanaziz/EPIJudge
-
Notifications
You must be signed in to change notification settings - Fork 0
/
EvenOddArray.java
57 lines (49 loc) · 1.45 KB
/
EvenOddArray.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
package epi;
import epi.test_framework.EpiTest;
import epi.test_framework.GenericTest;
import epi.test_framework.TestFailure;
import epi.test_framework.TimedExecutor;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class EvenOddArray {
public static void evenOdd(List<Integer> A) {
int nextEven = 0, nextOdd = A.size() - 1;
while (nextEven < nextOdd) {
if (A.get(nextEven) % 2 == 0) {
nextEven++;
} else {
Collections.swap(A, nextEven, nextOdd--);
}
}
}
@EpiTest(testDataFile = "even_odd_array.tsv")
public static void evenOddWrapper(TimedExecutor executor, List<Integer> A)
throws Exception {
List<Integer> before = new ArrayList<>(A);
executor.run(() -> evenOdd(A));
boolean inOdd = false;
for (int i = 0; i < A.size(); i++) {
if (A.get(i) % 2 == 0) {
if (inOdd) {
throw new TestFailure("Even elements appear in odd part");
}
} else {
inOdd = true;
}
}
List<Integer> after = new ArrayList<>(A);
Collections.sort(before);
Collections.sort(after);
if (!before.equals(after)) {
throw new TestFailure("Elements mismatch");
}
}
public static void main(String[] args) {
System.exit(
GenericTest
.runFromAnnotations(args, "EvenOddArray.java",
new Object() {}.getClass().getEnclosingClass())
.ordinal());
}
}