View Compilation Error

0_0_38066446_9416.cpp: In function 'int main()':
0_0_38066446_9416.cpp:21:15: error: 'else' without a previous 'if'
             } else {
               ^
0_0_38066446_9416.cpp:22:39: error: 'x1' was not declared in this scope
                 printf("%lld %lld\n", x1, x2);
                                       ^
0_0_38066446_9416.cpp:22:43: error: 'x2' was not declared in this scope
                 printf("%lld %lld\n", x1, x2);
                                           ^
0_0_38066446_9416.cpp: At global scope:
0_0_38066446_9416.cpp:27:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_38066446_9416.cpp:28:1: error: expected declaration before '}' token
 }
 ^