摘要："POJ" "洛咕 UVA" "洛咕 SP" 题意:有$n(n=c_i$,这样就是差分约束的模型了,我们在$a_i 1,b_i$之间连一条长度为$c_i$的有向边(实际代码中我连得是$a_i,b_i+1$,一个意思.) 然后结合$s$数组的定义,$s[k] s[k 1] =0$,所以$k 1,k$之 阅读全文

摘要："洛咕" 题意:小K总共有$n(n=c$,第二种形如$X_a X_b include include include include include include include define ll long long using namespace std; inline int read(){ 阅读全文