Added codes for 6 June

GeeksForGeeks/June/06-6-24/GFG.java

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+//{ Driver Code Starts
+import java.util.*;
+
+class Maxsum_Among_All_Rotations_Array {
+    public static void main(String args[]) {
+        Scanner sc = new Scanner(System.in);
+        int t = sc.nextInt();
+        while (t > 0) {
+            int n = sc.nextInt();
+            int arr[] = new int[n];
+            for (int i = 0; i < n; i++) arr[i] = sc.nextInt();
+
+            System.out.println(new Solution().max_sum(arr, n));
+
+            t--;
+        }
+    }
+}
+
+// } Driver Code Ends
+
+
+class Solution 
+{
+    long max_sum(int a[], int n) 
+    {
+        // Your code here
+        long totalSum = 0;
+        long currentConfigurationSum = 0;
+
+        for (int i = 0; i < n; i++) 
+        {
+            totalSum += a[i];
+            currentConfigurationSum += i * (long) a[i];
+        }
+
+        long maxSum = currentConfigurationSum;
+
+        for (int i = 1; i < n; i++) 
+        {
+            currentConfigurationSum = currentConfigurationSum - totalSum + a[i - 1] * (long) n;
+            maxSum = Math.max(maxSum, currentConfigurationSum);
+        }
+
+        return maxSum;
+    }
+}

GeeksForGeeks/June/06-6-24/README.md

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+Time complexity - O(n)
+Space complexity - O(1)

LeetCode/June/06-6-24/README.md

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+Time complexity - O(mlogm + mk), where m = # of different nums
+Space complexity - O(m)

LeetCode/June/06-6-24/Solution.java

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+class Solution 
+{
+    public boolean isNStraightHand(int[] hand, int groupSize) 
+    {
+        TreeMap<Integer, Integer> count = new TreeMap<>();
+
+        for (int card : hand)
+            count.merge(card, 1, Integer::sum);
+
+        for (int start : count.keySet()) 
+        {
+            int value = count.getOrDefault(start, 0);
+            if (value > 0)
+                for (int i = start; i < start + groupSize; ++i)
+                    if (count.merge(i, -value, Integer::sum) < 0)
+                        return false;
+        }
+
+        return true;
+    }
+}