Refactored and removed unused code.

foundationer · Oct 29, 2023 · a011f9f · a011f9f
1 parent e101912
commit a011f9f
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Showing 3 changed files with 9 additions and 11 deletions.
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,5 @@
+# IntelliJ project files
+.idea
+*.iml
+out
+gen
diff --git a/src/main/java/org/mackenzine/hackerrank/problems/CountingSort.java b/src/main/java/org/mackenzine/hackerrank/problems/CountingSort.java
@@ -2,7 +2,6 @@
 
 import java.io.*;
 import java.util.List;
-import java.util.Optional;
 import java.util.stream.Stream;
 
 import static java.util.stream.Collectors.joining;
@@ -36,8 +35,6 @@ public static void main(String[] args) throws IOException {
             BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
             BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));
 
-            int n = Integer.parseInt(bufferedReader.readLine().trim());
-
             List<Integer> arr = Stream.of(bufferedReader.readLine().replaceAll("\\s+$", "").split(" "))
                     .map(Integer::parseInt)
                     .collect(toList());

diff --git a/src/main/java/org/mackenzine/hackerrank/problems/LonelyInteger.java b/src/main/java/org/mackenzine/hackerrank/problems/LonelyInteger.java
@@ -5,8 +5,6 @@
 import java.util.Stack;
 import java.util.stream.Stream;
 
-import static java.util.stream.Collectors.toList;
-
 public class LonelyInteger {
 
     static class Result {
@@ -20,11 +18,11 @@ static class Result {
 
         public static int lonelyinteger(List<Integer> a) {
             Stack<Integer> result = new Stack<>();
-            for (int i = 0; i < a.size(); i++) {
-                if (result.contains(a.get(i))) {
-                    result.remove(a.get(i));
+            for (Integer integer : a) {
+                if (result.contains(integer)) {
+                    result.remove(integer);
                 } else {
-                    result.push(a.get(i));
+                    result.push(integer);
                 }
             }
             return result.pop();
@@ -36,8 +34,6 @@ public static void main(String[] args) throws IOException {
             BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
             BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));
 
-            int n = Integer.parseInt(bufferedReader.readLine().trim());
-
             List<Integer> a = Stream.of(bufferedReader.readLine().replaceAll("\\s+$", "").split(" "))
                     .map(Integer::parseInt)
                     .toList();