Added "Remove duplicates from sorted array"

Added aother problem from the top interview problems list

Author: sanesana

Leetcode - Top Interview Questions/Remove-duplicates-from-sorted-array.cpp

@@ -0,0 +1,22 @@
+class Solution {
+public:
+    int removeDuplicates(vector<int>& nums) {
+        if(nums.size()<=1) return nums.size();
+        int i=0,n=nums.size(),greater_than=0,size;
+        while(i<n)
+        {
+            
+            size=greater_than+1;
+            i++;
+            while(i<n && nums[i]<=nums[greater_than])
+                i++;
+            if(i<n)
+            {
+                swap(nums[size],nums[i]);
+                greater_than=size;
+            }
+            
+        }
+        return size;
+    }
+};