- Added guest contribution by Mohammad Meraj Zia.

3 files changed, 46 insertions, 23 deletions

diff --git a/challenge-160/ziameraj16/README.md b/challenge-160/ziameraj16/README.md
index 2ac8b371bd..4ba15e65ad 100644..100755
--- a/challenge-160/ziameraj16/README.md
+++ b/challenge-160/ziameraj16/README.md
@@ -1,34 +1,26 @@
-# AddBinary
-## Java Solution
+# Equilibrium Index
 
 To compile the code run
 ```java
-javac AddBinary.java
+javac EquilibriumIndex.java
 ```
 To run
 ```java
-java AddBinary
+java EquilibriumIndex
 ```
 ### Example
 ```bash
-~/study/github/perlweeklychallenge-club/challenge-140/ziameraj16/java$ javac AddBinary.java
-~/study/github/perlweeklychallenge-club/challenge-140/ziameraj16/java$ java AddBinary
-Enter first number in Binary format
-11
-Enter second number in Binary format
+~/study/PerlWeeklyChallenge/src/main/java$ javac EquilibriumIndex.java
+~/study/PerlWeeklyChallenge/src/main/java$ java EquilibriumIndex
+Enter comma separated elements of the list
+1,3,5,7,9
+3
+~/study/PerlWeeklyChallenge/src/main/java$ java EquilibriumIndex
+Enter comma separated elements of the list
+1,2,3,4,5
+-1 as no Equilibrium Index found
+~/study/PerlWeeklyChallenge/src/main/java$ java EquilibriumIndex
+Enter comma separated elements of the list
+2,4,2
 1
-100
-~/study/github/perlweeklychallenge-club/challenge-140/ziameraj16/java$ java AddBinary
-Enter first number in Binary format
-101
-Enter second number in Binary format
-1
-110
-~/study/github/perlweeklychallenge-club/challenge-140/ziameraj16/java$ java AddBinary
-Enter first number in Binary format
-100
-Enter second number in Binary format
-11
-111
-~/study/github/perlweeklychallenge-club/challenge-140/ziameraj16/java$ 
 ```
diff --git a/challenge-160/ziameraj16/java/EquilibriumIndex.java b/challenge-160/ziameraj16/java/EquilibriumIndex.java
new file mode 100755
index 0000000000..34b498afcb
--- /dev/null
+++ b/challenge-160/ziameraj16/java/EquilibriumIndex.java
@@ -0,0 +1,31 @@
+import java.util.Arrays;
+import java.util.List;
+import java.util.Scanner;
+import java.util.stream.Collectors;
+
+public class EquilibriumIndex {
+
+    public static void main(String... args) {
+        System.out.println("Enter comma separated elements of the list");
+        Scanner scanner = new Scanner(System.in);
+        String line = scanner.nextLine();
+        boolean found = false;
+        List<Integer> list = Arrays.stream(line.split(",")).map(Integer::valueOf).collect(Collectors.toList());
+        for (int i = 1; i < list.size() - 1; i++) {
+            int leftSum = sum(list.subList(0, i));
+            int rightSum = sum(list.subList(i + 1, list.size()));
+            if (leftSum == rightSum) {
+                System.out.println(i);
+                found = true;
+                break;
+            }
+        }
+        if (!found) {
+            System.out.println("-1 as no Equilibrium Index found");
+        }
+    }
+
+    private static int sum(List<Integer> subList) {
+        return subList.stream().reduce(0, Integer::sum);
+    }
+}
diff --git a/challenge-160/ziameraj16/kotlin/META-INF/main.kotlin_module b/challenge-160/ziameraj16/kotlin/META-INF/main.kotlin_module
deleted file mode 100644
index 609d952938..0000000000
--- a/challenge-160/ziameraj16/kotlin/META-INF/main.kotlin_module
+++ /dev/null