View Compilation Error

0_0_29486721_32674.cpp: In function 'int main()':
0_0_29486721_32674.cpp:147:17: error: 'ans' was not declared in this scope
         cout << ans = max(max(t.oo, t.oe), max(t.ee, t.eo)) << endl;
                 ^
0_0_29486721_32674.cpp:31:14: error: invalid operands of types 'const long long int' and 'const char [2]' to binary 'operator<<'
 #define endl "\n"
              ^
0_0_29486721_32674.cpp:147:64: note: in expansion of macro 'endl'
         cout << ans = max(max(t.oo, t.oe), max(t.ee, t.eo)) << endl;
                                                                ^