Added codes for 5 April

GeeksForGeeks/April/05-4-24/GFG.java

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+//{ Driver Code Starts
+//Initial Template for Java
+
+import java.util.*;
+import java.lang.*;
+import java.io.*;
+class GFG
+{
+    public static void main(String[] args) throws IOException
+    {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        int T = Integer.parseInt(br.readLine().trim());
+        while(T-->0)
+        {
+            int n = Integer.parseInt(br.readLine().trim());
+            String s = br.readLine().trim();
+            String[] s1 = s.split(" ");
+            int[] nums = new int[n];
+            for(int i = 0; i < n; i++)
+                nums[i] = Integer.parseInt(s1[i]);
+            Solution ob = new Solution();
+            long ans = ob.min_operations(nums);
+            System.out.println(ans);            
+        }
+    }
+}
+
+// } Driver Code Ends
+
+
+//User function Template for Java
+
+class Solution
+{
+    public int min_operations(int []nums)
+    {
+        // Code here
+        int n = nums.length;
+        int dp[] = new int[n];
+        Arrays.fill(dp,1);
+        int maxi = 1;
+
+        for(int i = 1;i < n;i++)
+        {
+            for(int j = 0;j < i;j++)
+            {
+                if(nums[i]-nums[j]>=i-j)
+                {
+                    dp[i] = Math.max(dp[i],dp[j]+1);
+                    maxi = Math.max(maxi,dp[i]);
+                }
+            }
+        } 
+
+        return n-maxi;
+    }
+}

GeeksForGeeks/April/05-4-24/README.md

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+Time complexity - O(n^2)
+Space complexity - O(n)

LeetCode/April/05-4-24/README.md

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

LeetCode/April/05-4-24/Solution.java

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+class Solution 
+{
+    public String makeGood(String s) 
+    {
+        StringBuilder sb = new StringBuilder();
+
+        for (char c : s.toCharArray())
+            if (sb.length() > 0 && isBadPair(sb.charAt(sb.length() - 1), c))
+                sb.deleteCharAt(sb.length() - 1);
+            else
+                sb.append(c);
+
+        return sb.toString();
+    }
+
+    private boolean isBadPair(char a, char b) 
+    {
+        return a != b && Character.toLowerCase(a) == Character.toLowerCase(b);
+    }
+}