Codeforces Round 197 (Div. 2)
C
Xenia and Weights
Codeforces
1700
原题
← BD →
翻译中…

Xenia has a set of weights and pan scales. Each weight has an integer weight from 1 to 10 kilos. Xenia is going to play with scales and weights a little. For this, she puts weights on the scalepans, one by one. The first weight goes on the left scalepan, the second weight goes on the right scalepan, the third one goes on the left scalepan, the fourth one goes on the right scalepan and so on. Xenia wants to put the total of $*m*$ weights on the scalepans.

翻译中…

Simply putting weights on the scales is not interesting, so Xenia has set some rules. First, she does not put on the scales two consecutive weights of the same weight. That is, the weight that goes $*i*$-th should be different from the $(*i* + 1)$-th weight for any $*i*$ $(1 ≤ *i* < *m*)$. Second, every time Xenia puts a weight on some scalepan, she wants this scalepan to outweigh the other one. That is, the sum of the weights on the corresponding scalepan must be strictly greater than the sum on the other pan.

翻译中…

You are given all types of weights available for Xenia. You can assume that the girl has an infinite number of weights of each specified type. Your task is to help Xenia lay $*m*$ weights on ​​the scales or to say that it can't be done.

翻译中…

Input

翻译中…

The first line contains a string consisting of exactly ten zeroes and ones: the $*i*$-th $(*i* ≥ 1)$ character in the line equals "1" if Xenia has $*i*$ kilo weights, otherwise the character equals "0". The second line contains integer $*m*$ $(1 ≤ *m* ≤ 1000)$.

翻译中…

Output

翻译中…

In the first line print "YES", if there is a way to put $*m*$ weights on the scales by all rules. Otherwise, print in the first line "NO". If you can put $*m*$ weights on the scales, then print in the next line $*m*$ integers — the weights' weights in the order you put them on the scales.

翻译中…

If there are multiple solutions, you can print any of them.

翻译中…

样例

Input #1
0000000101
3
Output #1
YES
8 10 8
InputCopy OutputCopy
Input #2
1000000000
2
Output #2
NO
InputCopy OutputCopy
题目信息
题号
339C
时间限制
2 s
内存限制
256 MB
标签
构造
DFS 及类似
动态规划
图论
贪心
最短路

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