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Re:都做到这个份上了,怎么还超时

Posted by zcube at 2011-03-25 20:09:46 on Problem 2104
In Reply To:Re:都做到这个份上了,怎么还超时 Posted by:lijingwei at 2010-08-06 09:03:07
> #include<iostream>
> #include<algorithm>
> using namespace std;
> struct In
> {    
> 	int x; 
> 	int id;
> }s[100015]; 
> int cmp(const void *a , const void *b)
> {
> 	struct In *c=(In *)a;
> 	struct In *d = (In *)b;  
> 	return c->x-d->x;
> }
> int main()
> {
>     int m,n;
>     int a,b,c,i; 
> 	cin>>n>>m; 
> 	for(i=0;i<n;i++)
> 	{
> 		scanf("%d",&s[i].x);  
> 		s[i].id=i;
> 	} 
> 	qsort(s,n,sizeof(s[0]),cmp);//只用作一次快排,而不是m次
> 	while(m--)
> 	{
> 		scanf("%d%d%d",&a,&b,&c);  
> 		for(i=0;i<n;i++) 
> 		{
> 			if(s[i].id>=a-1&&s[i].id<=b-1)
> 				c--;
> 			if(c==0)//数到0,则找到该数   
> 				break;  
>           } 
> 		printf("%d\n",s[i].x); 
>        }
> 	return 0;
> }

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