Codeforces Round 944 (Div. 4) |
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Finished |
You are given a binary string$$$^{\dagger}$$$. Please find the minimum number of pieces you need to cut it into, so that the resulting pieces can be rearranged into a sorted binary string.
Note that:
$$$^{\dagger}$$$ A binary string is a string consisting of characters $$$\texttt{0}$$$ and $$$\texttt{1}$$$. A sorted binary string is a binary string such that all characters $$$\texttt{0}$$$ come before all characters $$$\texttt{1}$$$.
The first line contains a single integer $$$t$$$ ($$$1 \leq t \leq 500$$$) — the number of test cases.
The only line of each test case contains a single string $$$s$$$ ($$$1 \leq |s| \leq 500$$$) consisting of characters $$$\texttt{0}$$$ and $$$\texttt{1}$$$, where $$$|s|$$$ denotes the length of the string $$$s$$$.
For each test case, output a single integer — the minimum number of pieces needed to be able to rearrange the string into a sorted binary string.
6110100000000011000011110110
3 1 1 2 1 2
The first test case is pictured in the statement. It can be proven that you can't use fewer than $$$3$$$ pieces.
In the second and third test cases, the binary string is already sorted, so only $$$1$$$ piece is needed.
In the fourth test case, you need to make a single cut between the two characters and rearrange them to make the string $$$\texttt{01}$$$.
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