| ||||||||||
| Online Judge | Problem Set | Authors | Online Contests | User | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest | |||||||||
线段树查找,WA不停,实在是找不出来怎么错了,路过的大牛行行好,帮忙看看提提意见#include<stdio.h>
#define N 8001
struct Node{
int s,t,nlen;
}node[2*N];
void creatTree(int s,int l,int r)
{
node[s].s=l,node[s].t=r;
node[s].nlen=r-l+1;
if(r>l) {
int m=(r+l)>>1;
creatTree(2*s,l,m);
creatTree(2*s+1,m+1,r);
}
}
int search(int pos,int s)
{
node[s].nlen--;
if(node[s].s!=node[s].t) {
if(pos<=node[2*s].nlen) return search(pos,2*s);
else return search(pos-node[2*s].nlen,2*s+1);
}
return node[s].s;
}
int main()
{
// freopen("data.txt","r",stdin);
int n,i,a[N],b[N];
scanf("%d",&n);
a[1]=0;
for(i=2;i<=n;i++)
scanf("%d",&a[i]);
creatTree(1,1,n);
for(i=n;i>=1;i--)
b[i]=search(a[i]+1,1);;
for(i=1;i<=n;i++)
printf("%d\n",b[i]);
return 0;
}
Followed by: Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator