Presentation Error

介绍

英文简称 : PE 中文全称 : 格式错误 所属分类 : 电子电工 词条简介 : 国际大学生程序设计竞赛(ACM/ICPC)中的常见错误

Your output format is not exactly
the same as the judge's output, although your answer to the problem
is correct. Check your output for spaces, blank lines,etc against
the problem output specification.

参考

迁移自谢先斌的博客:http://blog.sina.com.cn/s/blog_002e20310100ye76.html

完毕。