day 24 and 25 (#228)

Spreeha · MadhavBahl · commit be147972a820 · 2019-02-08T00:15:49.000+05:30
diff --git a/day24/Java/circularRotation.java b/day24/Java/circularRotation.java
@@ -0,0 +1,68 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package javaapplication3;
+
+/**
+ * @date 03/01/19
+ * @author SPREEHA DUTTA
+ */
+import java.util.*;
+public class circularRotation {
+    public static boolean circular(List a1,List a2)
+    {
+        int p;int c=0;int i,j=0;
+        if(a1.size()!=a2.size())
+            return false;
+        else
+        {
+           p=a2.indexOf(a1.get(0)); 
+           if(p!=-1)
+           {
+               for(i=p;i<a2.size();i++)
+               {
+                   if(a2.get(i)==a1.get(j))
+                   {
+                       c++;
+                       j++;
+                   }
+                   else
+                       break;
+               }
+               for(i=0;i<p;i++)
+               {
+                   if(a2.get(i)==a1.get(j))
+                   {
+                       c++; j++;
+                   }
+                   else
+                       break;
+               }
+           }
+               if(c==a1.size())
+                   return true;
+               else
+                   return false;
+        }
+            
+    }
+   public static void main(String []args)
+   {
+       Scanner sc=new Scanner(System.in);
+       int m,n,i;
+       ArrayList<Integer> a = new ArrayList<Integer>();
+       ArrayList<Integer> a2 = new ArrayList<Integer>();
+       System.out.println("Enter size and insert elements into first array ");
+       m=sc.nextInt();
+       for(i=0;i<m;i++)
+          a.add(sc.nextInt()); 
+       System.out.println("Enter size and insert elements into second array ");
+       n=sc.nextInt();
+       for(i=0;i<n;i++)
+          a2.add(sc.nextInt());
+       boolean res = circular(a,a2);
+       System.out.println(res);
+   }
+}
diff --git a/day24/README.md b/day24/README.md
@@ -104,4 +104,72 @@ def main
 end
 
 main
+```
+
+## Java Implementation
+
+### [Solution](./Java/circularRotation.java)
+
+```java
+/**
+ * @date 03/01/19
+ * @author SPREEHA DUTTA
+ */
+import java.util.*;
+public class circularRotation {
+    public static boolean circular(List a1,List a2)
+    {
+        int p;int c=0;int i,j=0;
+        if(a1.size()!=a2.size())
+            return false;
+        else
+        {
+           p=a2.indexOf(a1.get(0)); 
+           if(p!=-1)
+           {
+               for(i=p;i<a2.size();i++)
+               {
+                   if(a2.get(i)==a1.get(j))
+                   {
+                       c++;
+                       j++;
+                   }
+                   else
+                       break;
+               }
+               for(i=0;i<p;i++)
+               {
+                   if(a2.get(i)==a1.get(j))
+                   {
+                       c++; j++;
+                   }
+                   else
+                       break;
+               }
+           }
+               if(c==a1.size())
+                   return true;
+               else
+                   return false;
+        }
+            
+    }
+   public static void main(String []args)
+   {
+       Scanner sc=new Scanner(System.in);
+       int m,n,i;
+       ArrayList<Integer> a = new ArrayList<Integer>();
+       ArrayList<Integer> a2 = new ArrayList<Integer>();
+       System.out.println("Enter size and insert elements into first array ");
+       m=sc.nextInt();
+       for(i=0;i<m;i++)
+          a.add(sc.nextInt()); 
+       System.out.println("Enter size and insert elements into second array ");
+       n=sc.nextInt();
+       for(i=0;i<n;i++)
+          a2.add(sc.nextInt());
+       boolean res = circular(a,a2);
+       System.out.println(res);
+   }
+}
 ```
diff --git a/day25/Java/rotateTile.java b/day25/Java/rotateTile.java
@@ -0,0 +1,60 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package javaapplication3;
+
+/**
+ * @date 3/02/19
+ * @author SPREEHA DUTTA
+ */
+import java.util.*;
+public class rotateTile {
+    public static int[][] rotate(int arr[][])
+    {
+        int i,j,ri=0;
+        int rj=arr.length-1;
+        int rot[][]=new int[arr.length][arr.length];
+        for(i=0;i<arr.length;i++)
+        {
+            for(j=0;j<arr.length;j++)
+            {
+                rot[ri][rj]=arr[i][j];
+                ri++;
+            }
+            rj--; ri=0;
+        }
+        return rot;
+    }
+    public static void main(String []args)
+    {
+        int n,i,j;
+        Scanner sc=new Scanner(System.in);
+        n=sc.nextInt();
+        int ri=0,rj=n-1;
+        int arr[][]=new int[n][n];
+        for(i=0;i<n;i++)
+            for(j=0;j<n;j++)
+                arr[i][j]=sc.nextInt();
+        System.out.println("Original matrix is ");
+        for(i=0;i<n;i++)
+        {
+            for(j=0;j<n;j++)
+            {
+                System.out.print(arr[i][j]+" ");
+            }
+            System.out.println();
+        }
+        int rot[][]=rotate(arr);
+        System.out.println("Rotated matrix is ");
+        for(i=0;i<n;i++)
+        {
+            for(j=0;j<n;j++)
+            {
+                System.out.print(rot[i][j]+" ");
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/day25/README.md b/day25/README.md
@@ -98,4 +98,64 @@ rotateTile ([[1, 2, 3], [4, 5, 6], [7, 8, 9]]);
 
 ```js
 To be added
+```
+
+## Java Implementation
+
+### [Solution](./Java/rotateTile.java)
+
+```java
+/**
+ * @date 3/02/19
+ * @author SPREEHA DUTTA
+ */
+import java.util.*;
+public class rotateTile {
+    public static int[][] rotate(int arr[][])
+    {
+        int i,j,ri=0;
+        int rj=arr.length-1;
+        int rot[][]=new int[arr.length][arr.length];
+        for(i=0;i<arr.length;i++)
+        {
+            for(j=0;j<arr.length;j++)
+            {
+                rot[ri][rj]=arr[i][j];
+                ri++;
+            }
+            rj--; ri=0;
+        }
+        return rot;
+    }
+    public static void main(String []args)
+    {
+        int n,i,j;
+        Scanner sc=new Scanner(System.in);
+        n=sc.nextInt();
+        int ri=0,rj=n-1;
+        int arr[][]=new int[n][n];
+        for(i=0;i<n;i++)
+            for(j=0;j<n;j++)
+                arr[i][j]=sc.nextInt();
+        System.out.println("Original matrix is ");
+        for(i=0;i<n;i++)
+        {
+            for(j=0;j<n;j++)
+            {
+                System.out.print(arr[i][j]+" ");
+            }
+            System.out.println();
+        }
+        int rot[][]=rotate(arr);
+        System.out.println("Rotated matrix is ");
+        for(i=0;i<n;i++)
+        {
+            for(j=0;j<n;j++)
+            {
+                System.out.print(rot[i][j]+" ");
+            }
+            System.out.println();
+        }
+    }
+}
 ```
