View Compilation Error

0_0_21643378_7328.cpp: In function 'int main()':
0_0_21643378_7328.cpp:182:31: error: 'lft' was not declared in this scope
         printf("%.10f\n", fun(lft));
                               ^
0_0_21643378_7328.cpp:182:34: error: 'fun' was not declared in this scope
         printf("%.10f\n", fun(lft));
                                  ^