solution

JavaSolutions/src/com/gitproject/Beecrowd2867_uri.java

@@ -0,0 +1,21 @@
+package com.gitproject;
+
+import java.math.BigInteger;
+import java.util.Scanner;
+
+public class Beecrowd2867_uri {
+        public static void main(String[] args) {
+            Scanner s = new Scanner(System.in);
+            int t = s.nextInt();
+
+            while (t-- > 0) {
+                int n = s.nextInt();
+                int m = s.nextInt();
+                BigInteger x = new BigInteger(String.valueOf(n));
+                BigInteger z = x.pow(m);
+                int l = z.toString().length();
+
+                System.out.println(l);
+            }
+        }
+}