A9132. Shave Beaver!
编程题
普及/提高-
知识点
题目描述
The first line contains integer $n$ — the total number of beavers, $2<=n$ . The second line contains $n$ space-separated integers — the initial beaver permutation.
The third line contains integer $q$ — the number of queries, $1<=q<=10^{5}$ . The next $q$ lines contain the queries. Each query $i$ looks as $p_{i}$ $x_{i}$ $y_{i}$ , where $p_{i}$ is the query type ( $1$ is to shave beavers from $x_{i}$ to $y_{i}$ , inclusive, $2$ is to swap beavers on positions $x_{i}$ and $y_{i}$ ). All queries meet the condition: $1<=x_{i}<y_{i}<=n$ .
- to get 30 points, you need to solve the problem with constraints: $n<=100$ (subproblem B1);
- to get 100 points, you need to solve the problem with constraints: $n<=3·10^{5}$ (subproblems B1+B2).
Note that the number of queries $q$ is limited $1<=q<=10^{5}$ in both subproblem B1 and subproblem B2.
The third line contains integer $q$ — the number of queries, $1<=q<=10^{5}$ . The next $q$ lines contain the queries. Each query $i$ looks as $p_{i}$ $x_{i}$ $y_{i}$ , where $p_{i}$ is the query type ( $1$ is to shave beavers from $x_{i}$ to $y_{i}$ , inclusive, $2$ is to swap beavers on positions $x_{i}$ and $y_{i}$ ). All queries meet the condition: $1<=x_{i}<y_{i}<=n$ .
- to get 30 points, you need to solve the problem with constraints: $n<=100$ (subproblem B1);
- to get 100 points, you need to solve the problem with constraints: $n<=3·10^{5}$ (subproblems B1+B2).
Note that the number of queries $q$ is limited $1<=q<=10^{5}$ in both subproblem B1 and subproblem B2.
输入格式
For each query with $p_{i}=1$ , print the minimum number of Beavershave 5000 sessions.
输出格式
无
输入输出样例
输入 #1
5 1 3 4 2 5 6 1 1 5 1 3 4 2 2 3 1 1 5 2 1 5 1 1 5
输出 #1
2 1 3 5