diff --git a/Week-6/Assignment-6.1/index.js b/Week-6/Assignment-6.1/index.js
new file mode 100644
index 0000000..376a88b
--- /dev/null
+++ b/Week-6/Assignment-6.1/index.js
@@ -0,0 +1,10 @@
+function longestSubArray(arr) {
+  let a = arr[0];
+  for (let i = 1; i < arr.length; i++) {
+    arr[i] = Math.max(arr[i], arr[i] + arr[i - 1]);
+    a = Math.max(a,arr[i])
+  }
+  return a
+}
+console.log(longestSubArray([1,2,3,4,-10]));
+console.log(longestSubArray([-2,1,-3,4,-1,2,1,-5,4]));
diff --git a/Week-6/Assignment-6.3/index.js b/Week-6/Assignment-6.3/index.js
new file mode 100644
index 0000000..2db9679
--- /dev/null
+++ b/Week-6/Assignment-6.3/index.js
@@ -0,0 +1,6 @@
+//const arr = [0,1,0];
+const arr = [0, 2, 1, 2, 0];
+arr.sort(function (a, b) {
+  return a - b;
+});
+console.log(arr);
diff --git a/Week-6/Assignment-6.5/index.js b/Week-6/Assignment-6.5/index.js
new file mode 100644
index 0000000..8577d46
--- /dev/null
+++ b/Week-6/Assignment-6.5/index.js
@@ -0,0 +1,12 @@
+function arrDifference(arr, B) {
+  for (i = 0; i < arr.length - 1; i++) {
+    for (j = i + 1; j < arr.length; j++) {
+      if (arr[j] - arr[i] == B) {
+        return 1;
+      }
+    }
+  }
+  return 0;
+}
+console.log(arrDifference([5, 10, 3, 2, 50, 80], 78));
+console.log(arrDifference([-10,20], 30));
diff --git a/Week-6/Assignment-6.6/index.js b/Week-6/Assignment-6.6/index.js
new file mode 100644
index 0000000..d13ea47
--- /dev/null
+++ b/Week-6/Assignment-6.6/index.js
@@ -0,0 +1,14 @@
+function triplet(arr, x) {
+  let closestSum = Number.MAX_VALUE;
+
+  for (let i = 0; i < arr.length; i++) {
+    for (let j = i + 1; j < arr.length; j++) {
+      for (let k = j + 1; k < arr.length; k++) {
+        if (Math.abs(x - closestSum) > Math.abs(x - (arr[i] + arr[j] + arr[k])))
+          closestSum = arr[i] + arr[j] + arr[k];
+      }
+    }
+  }
+  return closestSum;
+}
+console.log(triplet([-1, 2, 1, -4], 1));