/in/foo.c: In function 'main':
/in/foo.c:6:5: warning: 'a' is used uninitialized in this function [-Wuninitialized]
  sum=a+b;
  ~~~^~~~
/in/foo.c:6:5: warning: 'b' is used uninitialized in this function [-Wuninitialized]

VJ4Error('ProblemDataNotFoundError', '题目 1003 的数据未找到。', 'MJ_C', 1003)