使用LINQ从string []进行多数投票? [英] Majority vote from string[] using LINQ?

问题描述

是否可以在C#中使用 Linq 查找数组中的大多数元素?更复杂一点的是，如果没有多数，则应该采用第一个元素.

Is there a way to use Linq in C# to find the majority of elements in an array? To make it a bit more complicated, if there is no majority, it should take the first element.

例如，对于数组["A", "B", "B"]，该语句的计算结果应为"B". 并且，对于数组["A", "B", "C"]，该语句的计算结果应为"A".

So for example with the array ["A", "B", "B"], the statement should evaluate to "B". And, with the array ["A", "B", "C"], the statement should evaluate to "A".

我敢肯定还有100种其他方式可以做到这一点，但对是否有Linq解决方案感到好奇.

I'm sure there are a 100 other ways to do this, but curious if there is a Linq solution.

推荐答案

string majority = yourArray.GroupBy(x => x)
                           .OrderByDescending(g => g.Count())
                           .First()
                           .Key;

查看它是否可以在线运行: ideone

See it working online: ideone

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