http://poj.org/problem?id=1065 import java.util.*; public class Main{ public static void main(String[] args){ int l[]=new int[10000]; int w[]=new int[10000]; int tt[]=new int[5000]; int k=0; Scanner keyin=new Scanner(System.in); int m=keyin.nextInt(); int mm=m; int n=0; for(;m>0;m--){ n=keyin.nextInt(); for(int j=0;j< n;j++){ l[j]=keyin.nextInt(); w[j]=keyin.nextInt(); } int time=0,c=0; for(int t=0;t<=n-2;t++){ for(int s=n-2;s>=t;s--){ if(l[s]>l[s+1]){ int temp=l[s]; l[s]=l[s+1]; l[s+1]=temp; temp=w[s]; w[s]=w[s+1]; w[s+1]=temp; } } } for(int p=0;p< n;p++){ if(w[p]!=-1){ time++; c=w[p]; for(int q=p+1;q< n;q++){ if(w[q]>=c){ c=w[q]; w[q]=-1; } } } } tt[k++]=time; } for(int r=0;r< mm;r++) System.out.println(tt[r]); } }
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