diff --git a/C++/Find Smallest Letter Greater Than Target.cpp b/C++/Find Smallest Letter Greater Than Target.cpp
new file mode 100644
index 00000000..6fa699bd
--- /dev/null
+++ b/C++/Find Smallest Letter Greater Than Target.cpp	
@@ -0,0 +1,19 @@
+class Solution {
+public:
+    char nextGreatestLetter(vector<char>& letters, char target) {
+        int low = 0;
+        int high = (letters.size()-1);
+        
+        while(low<=high){
+            int mid = low + (high-low)/2;
+            
+            if(letters[mid]>target){
+                high=--mid;
+            }
+            else{
+                low=++mid;
+            }
+        }
+        return letters[low % letters.size()];
+    }
+};