Fix LeetCode links parser

Author: madhead

leetcode/src/main/kotlin/by/jprof/telegram/bot/leetcode/NaiveRegexSlugExtractor.kt

@@ -1,6 +1,6 @@
 package by.jprof.telegram.bot.leetcode
 
-private val slugRegex = "https?://leetcode\\.com/problems/(?<slug>.+?)/?".toRegex()
+private val slugRegex = "https?://leetcode\\.com/problems/(?<slug>[^/]+).*".toRegex()
 
 @Suppress("FunctionName")
 fun NaiveRegexSlugExtractor(message: String): String? {

leetcode/src/test/kotlin/by/jprof/telegram/bot/leetcode/NaiveRegexSlugExtractorTest.kt

@@ -1,12 +1,12 @@
 package by.jprof.telegram.bot.leetcode
 
+import java.util.stream.Stream
+import kotlin.streams.asStream
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.TestInstance
 import org.junit.jupiter.params.ParameterizedTest
 import org.junit.jupiter.params.provider.Arguments
 import org.junit.jupiter.params.provider.MethodSource
-import java.util.stream.Stream
-import kotlin.streams.asStream
 
 @TestInstance(TestInstance.Lifecycle.PER_CLASS)
 internal class NaiveRegexSlugExtractorTest {
@@ -22,6 +22,24 @@ internal class NaiveRegexSlugExtractorTest {
         yield(Arguments.of("test", null))
         yield(Arguments.of("https://google.com", null))
         yield(Arguments.of("https://leetcode.com/problems/two-sum/", "two-sum"))
+        yield(Arguments.of("https://leetcode.com/problems/two-sum", "two-sum"))
+        yield(Arguments.of("https://leetcode.com/problems/3sum/", "3sum"))
         yield(Arguments.of("https://leetcode.com/problems/3sum", "3sum"))
+        yield(Arguments.of(
+            "https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/description/",
+            "minimum-number-of-arrows-to-burst-balloons"
+        ))
+        yield(Arguments.of(
+            "https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/discussion",
+            "minimum-number-of-arrows-to-burst-balloons"
+        ))
+        yield(Arguments.of(
+            "https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/solutions",
+            "minimum-number-of-arrows-to-burst-balloons"
+        ))
+        yield(Arguments.of(
+            "https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/submissions/",
+            "minimum-number-of-arrows-to-burst-balloons"
+        ))
     }.asStream()
 }