System Error
/in/foo.cc: In function 'int main()':
/in/foo.cc:53:12: warning: unused variable 'c' [-Wunused-variable]
int a,b,c;
^
VJ4Error('ProblemDataNotFoundError', '题目 58db6460d3d8a17c6542606c 的数据未找到。', 'nssy', '58db6460d3d8a17c6542606c')
