Manthan, Codefest 18 (rated, Div. 1 + Div. 2)
E
Trips
Codeforces
2200
原题
← DF →
翻译中…

There are $n$ persons who initially don't know each other. On each morning, two of them, who were not friends before, become friends.

翻译中…

We want to plan a trip for every evening of $m$ days. On each trip, you have to select a group of people that will go on the trip. For every person, one of the following should hold:

翻译中…
  • Either this person does not go on the trip,
  • Or at least $k$ of his friends also go on the trip.
翻译中…

Note that the friendship is not transitive. That is, if $a$ and $b$ are friends and $b$ and $c$ are friends, it does not necessarily imply that $a$ and $c$ are friends.

翻译中…

For each day, find the maximum number of people that can go on the trip on that day.

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Input

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The first line contains three integers $n$, $m$, and $k$ ($2 \leq n \leq 2 \cdot 10^5, 1 \leq m \leq 2 \cdot 10^5$, $1 \le k \lt n$) — the number of people, the number of days and the number of friends each person on the trip should have in the group.

翻译中…

The $i$-th ($1 \leq i \leq m$) of the next $m$ lines contains two integers $x$ and $y$ ($1\leq x, y\leq n$, $x\ne y$), meaning that persons $x$ and $y$ become friends on the morning of day $i$. It is guaranteed that $x$ and $y$ were not friends before.

翻译中…

Output

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Print exactly $m$ lines, where the $i$-th of them ($1\leq i\leq m$) contains the maximum number of people that can go on the trip on the evening of the day $i$.

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Note

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In the first example,

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  • $1,2,3$ can go on day $3$ and $4$.
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In the second example,

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  • $2,4,5$ can go on day $4$ and $5$.
  • $1,2,4,5$ can go on day $6$ and $7$.
  • $1,2,3,4,5$ can go on day $8$.
翻译中…

In the third example,

翻译中…
  • $1,2,5$ can go on day $5$.
  • $1,2,3,5$ can go on day $6$ and $7$.
翻译中…

样例

Input #1
4 4 2
2 3
1 2
1 3
1 4
Output #1
0
0
3
3
InputCopy OutputCopy
Input #2
5 8 2
2 1
4 2
5 4
5 2
4 3
5 1
4 1
3 2
Output #2
0
0
0
3
3
4
4
5
InputCopy OutputCopy
Input #3
5 7 2
1 5
3 2
2 5
3 4
1 2
5 3
1 3
Output #3
0
0
0
0
3
4
4
InputCopy OutputCopy
题目信息
题号
1037E
时间限制
2 s
内存限制
256 MB
标签
图论

题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。