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竟然在这题上载跟头了,BS一下自己…………以下为错误代码,大家一起来BS我………… #include<iostream> using namespace std; int main() { double long l; double long a,b; int m; while(cin>>l>>m) { if(m==0&&l==0) break; l++; for(int i=1; i<=m; i++) { cin>>a>>b; l = l-(b-a+1); } cout<<l<<endl; } } Followed by:
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