Initial commit

Easy/longest-common-prefix/Solution.java

@@ -0,0 +1,21 @@
+class Solution {
+    public String longestCommonPrefix(String[] strs) {
+        int len = strs.length;
+
+        if (len == 0)
+            return "";
+
+        if (len == 1)
+            return strs[0];
+
+        Arrays.sort(strs);
+
+        int end = Math.min(strs[0].length(), strs[len - 1].length());
+
+        int i = 0;
+        while (i < end && strs[0].charAt(i) == strs[len - 1].charAt(i))
+            i++;
+
+        return strs[0].substring(0, i);
+    }
+}