摘要： hdu 1384 Intervals http://acm.hdu.edu.cn/showproblem.php?pid=1384 2013-2-14f(b)-f(a)>=c0<=f(x+1)-f(x)<=1View Code 1 #include <cstdio> 2 #include <cstring> 3 #include <vector> 4 #include <queue> 5 using namespace std; 6 7 const int N=50010; 8 struct BellmanFord{ 9 str 阅读全文