A10649. Closing ceremony
编程题
普及/提高-
知识点
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.
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 $n+m$ .
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