O*a
2 楼
律师告诉我,虽然我收到卡了,如果我在拿到绿卡前回国的话还要重新申请H1B visa签
证(stamp).这个对吗?
证(stamp).这个对吗?
c*a
3 楼
画来画去都是n-1
r*h
7 楼
无向边是N-1
有向边应该是N(N-1)/2?
给每个节点赋一个不同的rank,然后每个节点对于所有rank小于自己的节点都建立一条
有向边
有向边应该是N(N-1)/2?
给每个节点赋一个不同的rank,然后每个节点对于所有rank小于自己的节点都建立一条
有向边
m*r
8 楼
你去搜搜COPMAN的帖子
这个是律师前几天发我的
The EAD/AP card serves as proof to employers that you are authorized to work
in the United States. This EAD/AP card also serves as your permission to
re-enter the United States after traveling abroad in order to continue
processing for adjustment of status. You may use it for multiple entries,
as long as travel is completed before the expiration date. When traveling
on the Advance Parole, you are not required to obtain a visa prior to
returning to the U.S. If you use this EAD/AP card for international travel,
please present the card, together with your passport and a copy of your
Adjustment of Status Receipt Notice in order to re-enter the U.S.
【在 O*******a 的大作中提到】![](/moin_static193/solenoid/img/up.png)
: 律师告诉我,虽然我收到卡了,如果我在拿到绿卡前回国的话还要重新申请H1B visa签
: 证(stamp).这个对吗?
这个是律师前几天发我的
The EAD/AP card serves as proof to employers that you are authorized to work
in the United States. This EAD/AP card also serves as your permission to
re-enter the United States after traveling abroad in order to continue
processing for adjustment of status. You may use it for multiple entries,
as long as travel is completed before the expiration date. When traveling
on the Advance Parole, you are not required to obtain a visa prior to
returning to the U.S. If you use this EAD/AP card for international travel,
please present the card, together with your passport and a copy of your
Adjustment of Status Receipt Notice in order to re-enter the U.S.
【在 O*******a 的大作中提到】
![](/moin_static193/solenoid/img/up.png)
: 律师告诉我,虽然我收到卡了,如果我在拿到绿卡前回国的话还要重新申请H1B visa签
: 证(stamp).这个对吗?
O*a
12 楼
谢谢,清楚了
work
travel,
【在 m******r 的大作中提到】![](/moin_static193/solenoid/img/up.png)
: 你去搜搜COPMAN的帖子
: 这个是律师前几天发我的
: The EAD/AP card serves as proof to employers that you are authorized to work
: in the United States. This EAD/AP card also serves as your permission to
: re-enter the United States after traveling abroad in order to continue
: processing for adjustment of status. You may use it for multiple entries,
: as long as travel is completed before the expiration date. When traveling
: on the Advance Parole, you are not required to obtain a visa prior to
: returning to the U.S. If you use this EAD/AP card for international travel,
: please present the card, together with your passport and a copy of your
work
travel,
【在 m******r 的大作中提到】
![](/moin_static193/solenoid/img/up.png)
: 你去搜搜COPMAN的帖子
: 这个是律师前几天发我的
: The EAD/AP card serves as proof to employers that you are authorized to work
: in the United States. This EAD/AP card also serves as your permission to
: re-enter the United States after traveling abroad in order to continue
: processing for adjustment of status. You may use it for multiple entries,
: as long as travel is completed before the expiration date. When traveling
: on the Advance Parole, you are not required to obtain a visa prior to
: returning to the U.S. If you use this EAD/AP card for international travel,
: please present the card, together with your passport and a copy of your
z*e
13 楼
sum(1+...+n-1)
c*a
15 楼
是(n^2-n)/2吗?
r*n
22 楼
这是排列组合题吧
n choose 2?
n choose 2?
c*a
24 楼
不会证明。
不过可以用bfs来想,从第一个node开始,“发射”完之后就去掉,这样就不会有cycle。
这么发射着,最后就是n(n-1)/2条edge
不过可以用bfs来想,从第一个node开始,“发射”完之后就去掉,这样就不会有cycle。
这么发射着,最后就是n(n-1)/2条edge
b*e
32 楼
http://en.wikipedia.org/wiki/Complete_partial_order
【在 z****e 的大作中提到】![](/moin_static193/solenoid/img/up.png)
: 全序集英语怎么说?
【在 z****e 的大作中提到】
![](/moin_static193/solenoid/img/up.png)
: 全序集英语怎么说?
f*2
33 楼
有向图的话是,N(N-1)/2吧
#1: 对于出发的节点1,可以产生N-1个边,而不产生环;
#2:对于出发的节点2,只有N-2个边(因为不可以再连接2->1),而不产生环。
。。。
#n:对于节点N出发的边,只有0.因为和之前任何一个N-1中的节点连接,势必产生环。
Sum=0+1+...+(N-1)=N(N-1)/2
#1: 对于出发的节点1,可以产生N-1个边,而不产生环;
#2:对于出发的节点2,只有N-2个边(因为不可以再连接2->1),而不产生环。
。。。
#n:对于节点N出发的边,只有0.因为和之前任何一个N-1中的节点连接,势必产生环。
Sum=0+1+...+(N-1)=N(N-1)/2
x*0
35 楼
mark
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