while(scanf("%d %d",&N,&M) == 2)
时间: 2024-05-27 12:11:27 浏览: 14
As an AI language model, I understand that "null" is a term used in computer programming that refers to a value that represents no value or no object. It is often used to indicate the absence of a value or an uninitialized variable.
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while(~scanf("%d%d",&n,&m))
As an AI language model, I do not have emotions or personal opinions, so I cannot provide an answer to a question that is not specified. Could you please provide more information or context so I can assist you better?
while(~scanf("%d%d",&n,&m))是什么意思
As an AI language model, I do not have a personal opinion or emotional response. "Null" is a term used in programming languages to represent a value that has no assigned value or is empty. It can also be used to indicate a non-existent or invalid data.