Problem Description
“今年暑假不AC?”
“是的。”
“那你干什么呢?”
“看世界杯呀,笨蛋!”
“@#$%^&*%...”

确实如此,世界杯来了,球迷的节日也来了,估计很多ACMer也会抛开电脑,奔向电视了。
作为球迷,一定想看尽量多的完整的比赛,当然,作为新时代的好青年,你一定还会看一些其它的节目,比如新闻联播(永远不要忘记关心国家大事)、非常6+7、超级女生,以及王小丫的《开心辞典》等等,假设你已经知道了所有你喜欢看的电视节目的转播时间表,你会合理安排吗?(目标是能看尽量多的完整节目)
 


 

Input
输入数据包含多个测试实例,每个测试实例的第一行只有一个整数n(n<=100),表示你喜欢看的节目的总数,然后是n行数据,每行包括两个数据Ti_s,Ti_e (1<=i<=n),分别表示第i个节目的开始和结束时间,为了简化问题,每个时间都用一个正整数表示。n=0表示输入结束,不做处理。
 


 

Output
对于每个测试实例,输出能完整看到的电视节目的个数,每个测试实例的输出占一行。
 


 

Sample Input
12 1 3 3 4 0 7 3 8 15 19 15 20 10 15 8 18 6 12 5 10 4 14 2 9 0
 


 

Sample Output
5

 

 

 

 

#include<stdio.h>
#include<stdlib.h>
int main()
{
    int n, num[100][2];
    int sum[100], i, j, t;
    while( ~scanf( "%d", &n ) && n  )
    {
           int count = 0;
           int max;
           for( i = 0; i < n; i++ )
                    scanf( "%d%d", &num[i][0], &num[i][1]);
      //输入
         
                   
           for( int k = 0; k < (n-1); k++ )
              for( i = 0; i < (n-1)-k; i++ )
              {
                 if( num[i][0] > num[i+1][0] )
                    {
                               int a, b;
                               a = num[i][0]; num[i][0] = num[i+1][0]; num[i+1][0] = a;
                               b = num[i][1]; num[i][1] = num[i+1][1]; num[i+1][1] = b;
                    }
                  if( num[i][0] == num[i+1][0] )
                    {
                          if( num[i][1] > num[i+1][1] )
                          {
                              int b;
                              b = num[i][1]; num[i][1] = num[i+1][1]; num[i+1][1] = b;
                          }
                    }
                   
              
             
          //    for( i = 0; i < n; i++ )
         //        for( j = 0; j < 2; j++ )
           //         printf( j == 1?"%d\n":"%d ", num[i][j] );             
      //排序
     
     
            for( i = 0; i < n; i++ )
               sum[i] = 1;
              
                      
            int Max = 0;       
            for( int i = 0; i < n; ++i )
            {
                for( int k = i + 1; k < n; ++k )
                   {
                         if( num[i][1] <= num[k][0] )
                             {
                                 if( sum[i]+1 > sum[k] )
                                       sum[k] = sum[i]+1;//printf( "sum[%d] = %d\n",k,sum[i]+1 );;
                             }   
                   }
                 if( sum[i] > Max )
                    Max = sum[i];
            
          
      //判断
              printf( "%d\n", Max );
          
    }
    system( "pause" );
}

posted on 2011-11-16 00:35  狸の舞  阅读(160)  评论(0编辑  收藏  举报