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Language/Type: C# algorithms interview strings
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Write a method named MinSubrange that accepts two strings s1 and s2 as parameters and returns the minimum-length substring from s1 that contains all characters from s2 in any order. For example, the call of MinSubrange("AXYBDCZDEBAXCY", "ABC") should return "BAXC". If s1 does not contain all characters from s2, return an empty string.

Method: Write a C# method as described, not a complete program or class.

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