Third Greatest

ardallie · ardallie · commit 80a4c89c5ec4 · 2021-08-16T22:05:23.000+01:00
diff --git a/src/easy/ThirdGreatest.java b/src/easy/ThirdGreatest.java
@@ -0,0 +1,45 @@
+package easy;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Comparator;
+
+/**
+ * Have the function ThirdGreatest(strArr) take the array of strings stored in strArr
+ * and return the third-largest word within it.
+ * ---
+ * So for example: if strArr is ["hello", "world", "before", "all"] your output
+ * should be world because "before" is 6 letters long, and "hello" and "world" are both 5,
+ * but the output should be world because it appeared as the last 5-letter word in the array.
+ * ---
+ * If strArr was ["hello", "world", "after", "all"] the output should
+ * be after because the first three words are all 5 letters long, so return the last one.
+ * The array will have at least three strings and each string will only contain letters.
+ */
+public class ThirdGreatest {
+
+  /**
+   * Third-Greatest function.
+   *
+   * @param strArr input array of strings
+   * @return the third-longest word
+   */
+  private static String thirdGreatest(String[] strArr) {
+    Arrays.sort(strArr, Collections.reverseOrder());
+    Arrays.sort(strArr, Comparator.comparingInt(String::length));
+    return strArr[strArr.length - 3];
+  }
+
+  /**
+   * Entry point.
+   *
+   * @param args command line arguments
+   */
+  public static void main(String[] args) {
+    var result1 = thirdGreatest(new String[]{"flowers", "decorate", "soul", "sleep"});
+    System.out.println(result1);
+    var result2 = thirdGreatest(new String[]{"surrounded", "darkness", "awakened", "within"});
+    System.out.println(result2);
+  }
+
+}
