/in/foo.c:1:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main(){}
 ^~~~

VJ4Error('ProblemDataNotFoundError', '题目 590c9c60d3d8a13210993c1f 的数据未找到。', 'newbzoj', '590c9c60d3d8a13210993c1f')