0_0_30338160_29674.cpp: In function 'void work()':
0_0_30338160_29674.cpp:70:30: error: expected '}' at end of input
ans[pos][i+L-1]--;//pos放回0是没用的
^
0_0_30338160_29674.cpp:70:30: error: expected '}' at end of input
0_0_30338160_29674.cpp:70:30: error: expected '}' at end of input
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