View Compilation Error

0_0_35713046_10542.cpp: In function 'int main()':
0_0_35713046_10542.cpp:47:7: error: expected '}' before 'else'
      }else{
       ^
0_0_35713046_10542.cpp:52:12: error: 'ans' was not declared in this scope
    cout << ans << endl;
            ^
0_0_35713046_10542.cpp: At global scope:
0_0_35713046_10542.cpp:57:2: error: expected unqualified-id before 'return'
  return 0;
  ^
0_0_35713046_10542.cpp:58:2: error: expected declaration before '}' token
  } 
  ^