View Compilation Error

1_734_4647_28827.cpp: In function 'int main()':
1_734_4647_28827.cpp:38:38: error: 'e' was not declared in this scope
             printf("Case #%d: -1\n", e);
                                      ^
1_734_4647_28827.cpp:65:17: error: 'else' without a previous 'if'
                 else
                 ^