solution

JavaSolutions/src/com/gitproject/Beecrowd1211_uri.java

@@ -0,0 +1,38 @@
+package com.gitproject;
+
+import java.io.EOFException;
+import java.util.Arrays;
+import java.util.Scanner;
+
+
+public class Beecrowd1211_uri {
+    public static void main(String[] args) throws EOFException {
+        Scanner s = new Scanner(System.in);
+
+        while (s.hasNextInt()) {
+
+            int t = s.nextInt();
+            s.nextLine();
+
+            String[] ff = new String[t];
+
+            for (int i = 0; i < t; i++) {
+                ff[i] = s.nextLine();
+            }
+
+            Arrays.sort(ff);
+            int e = 0;
+
+            for (int i = 0; i < t-1; i++) {
+                for (int j = 0; j < ff[i].length(); j++) {
+                    if (ff[i].charAt(j) == ff[i+1].charAt(j)) {
+                        e++;
+                    }
+                    else
+                        break;
+                }
+            }
+            System.out.println(e);
+        }
+    }
+}