因此,要注意的是一定要确保画布对象已经全部渲染到屏幕上;否则输出文件将是空的。
Therefore, take care that the Canvas object in fact has been rendered to the screen; otherwise the output file will be empty.
若存在一个可行的编号方法,就在第一行输出'YES',否则输出'NO'。
The first line of an output should contain YES, if it is possible to find a required numbering, and NO otherwise.
如果能安排一条所需的路线,则输出YES,否则输出NO,注意答案必需用大写字母。
Write YES to the output if it is possible to make a required route and NO otherwise. Note that answer must be written in capital Latin letters.
Is the first part. That says, I took the branch through here that eventually got to the end and said, there wasn't a solution, in which case I'mgoing to print out, there ain't no solution, otherwise I'll print out the pieces. All right, let's check it out. Ah, what did I say?
我是否返回了特殊的none值?是第一部分,这里的意思是我从这个分支,走到这儿最终走到最后,并告诉我这条路没有解决方案,也就是我想要打印的结果,没有符合的结果,否则我会把它们输出来?
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