View Compilation Error

0_0_15087282_20320.cpp: In function 'int main()':
0_0_15087282_20320.cpp:46:18: error: 'i' was not declared in this scope
  cout<<"Case #"<<i<<": "<<ans<<endl;
                  ^
0_0_15087282_20320.cpp: At global scope:
0_0_15087282_20320.cpp:49:2: error: expected unqualified-id before 'return'
  return 0;
  ^
0_0_15087282_20320.cpp:50:1: error: expected declaration before '}' token
 }
 ^