Calculate_The_Sum_By_Rotate

Author: codeurritesh

Calculate_The_Sum_By_Rotate.java

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+import java.util.Scanner;
+
+public class Calculate_The_Sum_By_Rotate {
+    public static void RotateArr(int n,int[] arr)
+    {
+        for (int j = 0; j < n; j++) {
+            int len=arr.length;
+        int temp=arr[len-1];
+        for (int i = len-2; i >=0; i--) {
+            arr[i+1]=arr[i];
+        }
+        arr[0]=temp;
+    }
+//        print(arr);
+    }
+    public static void print(int[] arr){
+        for (int n:arr) {
+            System.out.print(n+" ");
+        }
+        System.out.println();
+    }
+    public static void main(String[] args) {
+        Scanner s=new Scanner(System.in);
+        int n=s.nextInt();
+        int arr[]=new int[n];
+        for (int i = 0; i < n; i++) {
+            arr[i]=s.nextInt();
+        }
+        int t=s.nextInt();
+        int test[]=new int[t];
+        for (int i = 0; i < t; i++) {
+            test[i]=s.nextInt();
+        }
+        int arr2[]=arr.clone();
+
+        for (int p:test ) {
+            RotateArr(p,arr);
+            for (int i = 0; i < arr.length ; i++) {
+                arr[i]+=arr2[i];
+            }
+            arr2=arr;
+        }
+
+        int sum=0;
+        for (int i = 0; i < arr.length; i++) {
+            sum+=arr[i];
+        }
+
+        System.out.println(sum % (int) (Math.pow(10,9)+7) );
+
+    }
+}