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Re:竟然在这题上载跟头了,BS一下自己…………In Reply To:竟然在这题上载跟头了,BS一下自己………… Posted by:summery at 2006-04-22 13:16:21 也来BS我把。。。下面也是wa的代码。怎么通过率如此高?
#include <stdio.h>
int main()
{
int n, m;
while(scanf("%d %d", &n, &m) && n+m > 0)
{
n += 1;
int left = -1, right = -1;
scanf("%d %d", &left, &right);
int a, b;
for(int i=1;i<m;++i)
{
scanf("%d %d", &a, &b);
left = left <? a;
right = right >? b;
}
n -= right - left + 1;
printf("%d\n", n);
}
return 0;
}
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