View Compilation Error

0_0_33212541_24888.cpp: In function 'void update(int, int, int)':
0_0_33212541_24888.cpp:31:3: error: 'ret' was not declared in this scope
   ret
   ^
0_0_33212541_24888.cpp:31:3: error: expected '}' at end of input
0_0_33212541_24888.cpp:31:3: error: expected '}' at end of input