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CF2062A.String
String
You are given a string of length consisting of 0 and/or 1. In one operation, you can select a non-empty subsequence from such that any two adjacent characters in are different. Then, you flip each character of (0 becomes 1 and 1 becomes 0). For example, if and , after the operation, becomes \underline{1}0\underline{010}.
Calculate the minimum number of operations required to change all characters in to 0.
Recall that for a string , any string () where is a subsequence of .
Input
The first line of input contains a single integer () — the number of input test cases.
The only line of each test case contains the string (), where represents the length of .
Output
For each test case, output the minimum number of operations required to change all characters in to 0.
Note
In the first test case, you can flip . Then becomes 0, so the answer is .
In the fourth test case, you can perform the following three operations in order:
- Flip . Then becomes
\underline{01010}. - Flip . Then becomes
0\underline{010}0. - Flip . Then becomes
00\underline{0}00.
It can be shown that you can not change all characters in to 0 in less than three operations, so the answer is .
Samples
5
1
000
1001
10101
01100101011101
1
0
2
3
8
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