rectified the Index file

.idea/misc.xml

@@ -37,7 +37,7 @@
     <ConfirmationsSetting value="0" id="Add" />
     <ConfirmationsSetting value="0" id="Remove" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

app/src/main/assets/INDEX.txt

@@ -83,42 +83,42 @@ GCD
 heap sort
 00000042
 insertion sort
-00000043
-inverse of a matrix
 00000044
-knapsack problem
+inverse of a matrix
 00000045
-LCM
+knapsack problem
 00000046
-magic square
+LCM
 00000047
-matrix multiplication
+magic square
 00000048
-merge sort
+matrix multiplication
 00000049
-no of prime between a and b
+merge sort
 00000050
-octal to decimal
+no of prime between a and b
 00000051
-prims algorithms
+octal to decimal
 00000052
-radix sort
+prims algorithms
 00000053
-reverse a string
+radix sort
 00000054
-Root of a factorial
+reverse a string
 00000055
-RSA agorithm
+Root of a factorial
 00000056
-sequential search
+RSA agorithm
 00000057
-singly linked list
+sequential search
 00000058
-standard deviation
+singly linked list
 00000059
-tower of hanoi
+standard deviation
 00000060
-transpose of a matrix
+tower of hanoi
 00000061
+transpose of a matrix
+0000062
 vowels_or_consonants
-00000062
+0000063
\ No newline at end of file

app/src/main/res/menu/navigation.xml

 <?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android"
+<menu xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:android="http://schemas.android.com/apk/res/android"
     >
 <group android:checkableBehavior="single">
     <item android:id="@+id/share"