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Re:都做到这个份上了,怎么还超时In Reply To:牛人看下为何超时!!!!!!!! Posted by:lijingwei at 2010-07-04 11:21:39 #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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