View Compilation Error

0_0_37833590_31845.cpp: In function 'int main()':
0_0_37833590_31845.cpp:15:3: error: expected ';' before 'if'
   if (max(l,r)>0) mx+=b;
   ^
0_0_37833590_31845.cpp:16:3: error: 'else' without a previous 'if'
   else mx+=max(0,b-1);
   ^