OpenJudge/Poj 1083 Moving Tables

1.链接地址：

http://poj.org/problem?id=1083

http://bailian.openjudge.cn/practice/1083/

2.题目：

总时间限制:

1000ms

内存限制:

65536kB

描述

The famous ACM (Advanced Computer Maker) Company has rented a floor of a building whose shape is in the following figure.

The
floor has 200 rooms each on the north side and south side
along the corridor. Recently the Company made a plan to reform its
system. The reform includes moving a lot of tables between rooms.
Because the corridor is narrow and all the tables are big, only one
table can pass through the corridor. Some plan is needed to make the
moving efficient. The manager figured out the following plan: Moving a
table from a room to another room can be done within 10 minutes.
When moving a table from room i to room j, the part of the
corridor between the front of room i and the front of room j
is used. So, during each 10 minutes, several moving between two
rooms not sharing the same part of the corridor will be done
simultaneously. To make it clear the manager illustrated the possible
cases and impossible cases of simultaneous moving.

For
each room, at most one table will be either moved in or moved out. Now,
the manager seeks out a method to minimize the time to move all the
tables. Your job is to write a program to solve the manager's problem.

输入

The input consists of T test cases. The number of test cases )
(T is given in the first line of the input file. Each test case begins
with a line containing an integer N , 1 <= N <= 200, that
represents the number of tables to move.
Each of the following N
lines contains two positive integers s and t, representing that a table
is to move from room number s to room number t each room number appears
at most once in the N lines). From the 3 + N -rd
line, the remaining test cases are listed in the same manner as above.

输出

The output should contain the minimum time in minutes to complete the moving, one per line.

样例输入

3
4
10 20
30 40
50 60
70 80
2
1 3
2 200
3
10 100
20 80
30 50

样例输出

10
20
30

来源

Taejon 2001

3.思路：

4.代码：

 #include "stdio.h"
 //#include "stdlib.h"
 #define NUM 200
 int aa[NUM];
 int main()
 {
     int t,n;
     int i,j,k;
     int a,b;
     int tmp;
     int max;
     scanf("%d",&t);
     for(i=;i<t;i++)
     {
        for(j=;j<NUM;j++) aa[j]=;
        scanf("%d",&n);
        for(j=;j<n;j++)
        {
           scanf("%d%d",&a,&b);
           if(a>b){tmp=a;a=b;b=tmp;}
           for(k=(a-)/;k<=(b-)/;k++) aa[k]++;
        }
        max=-;
        for(int j=;j<NUM;j++){if(aa[j]>max)max=aa[j];}
        printf("%d\n",max*);

     }
     //system("pause");
     return ;
 }