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Author: vishnuthumpudi

Diff for: Maximum Length of a Concatenated String with Unique Characters.java

@@ -0,0 +1,32 @@
+class Solution {
+    public int solve(String strs[], int no, int a[], int index, int c) {
+        if(index==c)
+            return 0;
+        int x=no & a[index];
+        if(x==0)        
+            return Math.max(strs[index].length()+solve(strs,no^a[index],a,index+1,c),solve(strs,no,a,index+1,c));
+        else
+            return solve(strs,no,a,index+1,c);
+    }
+    public int maxLength(List<String> arr) {
+        int a[]=new int[arr.size()];int c=0;String strs[]=new String[a.length];
+        for(String s:arr) {
+            int x=0,fl=0;
+            for(char ch:s.toCharArray()) 
+            {
+                int z=x|(1<<(ch-96));
+                if(x==z)
+                {
+                    fl=1;break;                
+                }
+                x=z;
+            }
+            if(fl==0)
+            {
+                a[c]=x;
+                strs[c++]=s;
+            }
+        }
+        return solve(strs,0,a,0,c);
+    }
+}