View Compilation Error

0_0_33558984_29608.cpp: In function 'void build(int, int, int)':
0_0_33558984_29608.cpp:27:8: error: expected ')' at end of input
     if(l
        ^
0_0_33558984_29608.cpp:27:8: error: expected statement at end of input
0_0_33558984_29608.cpp:27:8: error: expected '}' at end of input