P****2
发帖数: 197 | 1 最短SNIPPETS变形吧，一样2指针2字典，O(n)扫过去
public bool IsAnagramSubString(string str, string anagram)
{
var pStart = 0;
var pEnd = 0;
var targetDict = anagram.GroupBy(p => p)
.ToDictionary(
g => g.Key,
g => g.Count()
);
var targetTotalNum = targetDict.Values.Sum();
var foundDict = targetDict.ToDictionary(p => p.Key, p => 0);
var foundTotalNum = 0;
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