5. r[ i ]:队列 i 的尾指针 代码 1.优化版 双向队列 #include<iostream>#include<cstdio>#include<algorithm>#include<cmath>#include<cstring>#include<string>#include<cstdlib>usingnamespacestd;structnode {intx,y; }q[2][100001];//定义两个队列inttext,ans,n,l[2],r[2];intdis[2][301][301...