#D4701. Partial Replacement
Partial Replacement
Partial Replacement
You are given a number k and a string s of length n, consisting of the characters '.' and ''. You want to replace some of the '' characters with 'x' characters so that the following conditions are met:
- The first character '*' in the original string should be replaced with 'x';
- The last character '*' in the original string should be replaced with 'x';
- The distance between two neighboring replaced characters 'x' must not exceed k (more formally, if you replaced characters at positions i and j (i < j) and at positions [i+1, j-1] there is no "x" symbol, then j-i must be no more than k).
For example, if n=7, s=..* and k=3, then the following strings will satisfy the conditions above:
- .xx.*xx;
- .x*.x*x;
- .xx.xxx.
But, for example, the following strings will not meet the conditions:
- .**.xx (the first character '' should be replaced with 'x');
- .x*.xx* (the last character '*' should be replaced with 'x');
- .x*.*xx (the distance between characters at positions 2 and 6 is greater than k=3).
Given n, k, and s, find the minimum number of '*' characters that must be replaced with 'x' in order to meet the above conditions.
Input
The first line contains one integer t (1 ≤ t ≤ 500). Then t test cases follow.
The first line of each test case contains two integers n and k (1 ≤ k ≤ n ≤ 50).
The second line of each test case contains a string s of length n, consisting of the characters '.' and '*'.
It is guaranteed that there is at least one '*' in the string s.
It is guaranteed that the distance between any two neighboring '*' characters does not exceed k.
Output
For each test case output the minimum number of '*' characters that must be replaced with 'x' characters in order to satisfy the conditions above.
Example
Input
5 7 3 ..* 5 1 .... 5 2 .. 3 2 . 1 1 *
Output
3 1 3 2 1
inputFormat
Input
The first line contains one integer t (1 ≤ t ≤ 500). Then t test cases follow.
The first line of each test case contains two integers n and k (1 ≤ k ≤ n ≤ 50).
The second line of each test case contains a string s of length n, consisting of the characters '.' and '*'.
It is guaranteed that there is at least one '*' in the string s.
It is guaranteed that the distance between any two neighboring '*' characters does not exceed k.
outputFormat
Output
For each test case output the minimum number of '*' characters that must be replaced with 'x' characters in order to satisfy the conditions above.
Example
Input
5 7 3 ..* 5 1 .... 5 2 .. 3 2 . 1 1 *
Output
3 1 3 2 1
样例
5
7 3
.**.***
5 1
..*..
5 2
*.*.*
3 2
*.*
1 1
*
3
1
3
2
1
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