/in/foo.cc: In function 'int main()':
/in/foo.cc:120:20: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
  printf("%d\n",ans);
                    ^

VJ4Error('ProblemDataNotFoundError', '题目 590c9c2bd3d8a13210993b33 的数据未找到。', 'newbzoj', '590c9c2bd3d8a13210993b33')