View Compilation Error

0_0_33209012_9033.cpp: In function 'void update(int, int, int)':
0_0_33209012_9033.cpp:33:12: error: 'l' was not declared in this scope
  int mid = l%
            ^
0_0_33209012_9033.cpp:33:13: error: expected primary-expression at end of input
  int mid = l%
             ^
0_0_33209012_9033.cpp:33:13: error: expected ',' or ';' at end of input
0_0_33209012_9033.cpp:33:13: error: expected '}' at end of input