线段树保存每个区间的左边最大连续长度和右边最大连续长度~ #include<cstdio> #include<cstring> #include<algorithm> #include<iostream> #include<string> using namespace std; ; struct node { int l,r; int ll,rl,ml; //左边开始连续的最大长度和右边开始连续的最大长度 //以及这个区间的最大连续长度 }se…

题目链接:https://vjudge.net/problem/HDU-1540 uring the War of Resistance Against Japan, tunnel warfare was carried out extensively in the vast areas of north China Plain. Generally speaking, villages connected by tunnels lay in a line. Except the two at…

Tunnel Warfare Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7703    Accepted Submission(s): 2981 Problem Description During the War of Resistance Against Japan, tunnel warfare was carried out…

题目链接:1540 Tunnel Warfare 以为单组输入 这个题多组输入 结构体记录每个区间左边和右边的连续区间 ms记录最大 在查询操作时: 1.这个点即将查询到右区间 看这个点 x 是否存在于右区间的ls 如果存在说明有可能 左区间的rs 和右区间的 ls 是连续的 这时候我们要考虑查询两个区间并且 值想加 查询 左区间的时候同理 #include<bits/stdc++.h> using namespace std; #define maxn 500010 struct ac{ i…

During the War of Resistance Against Japan, tunnel warfare was carried out extensively in the vast areas of north China Plain. Generally speaking, villages connected by tunnels lay in a line. Except the two at the ends, every village was directly con…

During the War of Resistance Against Japan, tunnel warfare was carried out extensively in the vast areas of north China Plain. Generally speaking, villages connected by tunnels lay in a line. Except the two at the ends, every village was directly con…

Tunnel Warfare Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2396    Accepted Submission(s): 886 Problem Description During the War of Resistance Against Japan, tunnel warfare was carried out…

During the War of Resistance Against Japan, tunnel warfare was carried out extensively in the vast areas of north China Plain. Generally speaking, villages connected by tunnels lay in a line. Except the two at the ends, every village was directly con…

http://acm.hdu.edu.cn/showproblem.php?pid=1540 Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Problem Description During the War of Resistance Against Japan, tunnel warfare was carried out extensively in the vast…

分析:不需要线段树,set可过,STL大法好 #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> #include <set> #include <stack> using namespace std; ; set<int>s; bool d[N]; stack<int>p; ]; int main() {…