View Compilation Error

0_0_33532877_17421.cpp: In function 'void work()':
0_0_33532877_17421.cpp:67:30: error: expected '}' at end of input
             ans[pos][i+L-1]--;//pos放回0是没用的
                              ^
0_0_33532877_17421.cpp:67:30: error: expected '}' at end of input
0_0_33532877_17421.cpp:67:30: error: expected '}' at end of input