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Handle empty input in Distances #92

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Handle empty input in Distances #92

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2 changes: 2 additions & 0 deletions src/main/java/algorithms/sprint1/Distances.java
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ public class Distances {
static int[] solve(int[] a) {
int n = a.length;
int[] dist = new int[n];
if (n == 0) return dist;

int lastZero = -n;
for (int i = 0; i < n; i++) {
Expand Down Expand Up @@ -149,6 +150,7 @@ static void assertEq(int[] exp, int[] act, String name) {
}

static void test() {
assertEq(new int[]{}, solve(new int[]{}), "empty");
assertEq(new int[]{0, 1, 2, 1, 0}, solve(new int[]{0, 1, 4, 9, 0}), "sample1");
assertEq(new int[]{0, 1, 2, 3, 4, 5}, solve(new int[]{0, 7, 9, 4, 8, 20}), "sample2");
assertEq(new int[]{0}, solve(new int[]{0}), "n=1");
Expand Down