Closing scanners.

DynamicProgramming/EditDistance.java

@@ -74,5 +74,6 @@ public class EditDistance {
         //ans stores the final Edit Distance between the two strings
         int ans = minDistance(s1, s2);
         System.out.println("The minimum Edit Distance between \"" + s1 + "\" and \"" + s2 + "\" is " + ans);
+        input.close();
     }
 }

DynamicProgramming/Fibonacci.java

@@ -22,6 +22,7 @@ public class Fibonacci {
         System.out.println(fibMemo(n));
         System.out.println(fibBotUp(n));
         System.out.println(fibOptimized(n));
+        sc.close();
     }
 
     /**

DynamicProgramming/LongestIncreasingSubsequence.java

@@ -17,6 +17,7 @@ public class LongestIncreasingSubsequence {
         }
 
         System.out.println(LIS(ar));
+        sc.close();
     }
 
     private static int upperBound(int[] ar, int l, int r, int key) {