题库练习 Closing ceremony
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A10649 | Closing ceremony

时间限制1s
内存限制256MB
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题目描述

The closing ceremony of Squanch Code Cup is held in the big hall with $n×m$ seats, arranged in $n$ rows, $m$ seats in a row. Each seat has two coordinates $(x,y)$ ( $1<=x<=n$ , $1<=y<=m$ ).

There are two queues of people waiting to enter the hall: $k$ people are standing at $(0,0)$ and $n·m-k$ people are standing at $(0,m+1)$ . Each person should have a ticket for a specific seat. If person $p$ at $(x,y)$ has ticket for seat $(x_{p},y_{p})$ then he should walk $|x-x_{p}|+|y-y_{p}|$ to get to his seat.

Each person has a stamina — the maximum distance, that the person agrees to walk. You should find out if this is possible to distribute all $n·m$ tickets in such a way that each person has enough stamina to get to their seat.

输入格式

The first line of input contains two integers $n$ and $m$ ( $1<=n·m<=10^{4}$ ) — the size of the hall.

The second line contains several integers. The first integer $k$ ( $0<=k<=n·m$ ) — the number of people at $(0,0)$ . The following $k$ integers indicate stamina of each person there.

The third line also contains several integers. The first integer $l$ ( $l=n·m-k$ ) — the number of people at $(0,m+1)$ . The following $l$ integers indicate stamina of each person there.

The stamina of the person is a positive integer less that or equal to $n+m$ .

输出格式

If it is possible to distribute tickets between people in the described manner print "YES", otherwise print "NO".

输入输出样例

输入 #1
2 2
3 3 3 2
1 3
输出 #1
YES
输入 #2
2 2
3 2 3 3
1 2
输出 #2
NO
C++ 编辑器
输入
输出