/in/foo.cc: In function 'int main()':
/in/foo.cc:72:8: warning: unused variable 'j' [-Wunused-variable]
  int i,j,l,ans=0;
        ^

VJ4Error('ProblemDataNotFoundError', '题目 590c9927d3d8a13210993a3c 的数据未找到。', 'newbzoj', '590c9927d3d8a13210993a3c')