Add missing closing brace in Solution.cpp

Author: yanglbme

solution/3300-3399/3377.Digit Operations to Make Two Integers Equal/Solution.cpp

@@ -45,10 +45,11 @@ class Solution {
         }
         return -1;
     }
+
 public:
     int minOperations(int n, int m) {
         runSieve();
         if (sieve[n] || sieve[m]) return -1;
         return solve(n, m);
-    }   
+    }
 };