Create 14_Longest Common Prefix

Author: CY-Gu

Diff for: 14_Longest Common Prefix

@@ -0,0 +1,19 @@
+
+class Solution {
+public:
+    string longestCommonPrefix(vector<string>& strs) {
+        
+    while (strs.size()==0) return "";
+        
+    string prefix = strs[0];
+        
+        for(int i = 1; i < strs.size(); i++){
+         while(strs[i].substr(0,prefix.size()) != prefix){
+             prefix = prefix.substr(0, prefix.size() - 1);
+         }
+            
+        }
+        return prefix;
+        
+    }
+};