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## Check Whether Two Strings are Almost Equivalent solution leetcode

Two strings `word1`

and `word2`

are considered **almost equivalent** if the differences between the frequencies of each letter from `'a'`

to `'z'`

between `word1`

and `word2`

is **at most** `3`

.

Given two strings `word1`

and `word2`

, each of length `n`

, return `true`

*if *`word1`

*and* `word2`

*are almost equivalent, or*

`false`

*otherwise*.

The **frequency** of a letter `x`

is the number of times it occurs in the string.

**Example 1: Check Whether Two Strings are Almost Equivalent solution leetcode**

Input:word1 = "aaaa", word2 = "bccb"Output:falseExplanation:There are 4 'a's in "aaaa" but 0 'a's in "bccb". The difference is 4, which is more than the allowed 3.

**Example 2:**

Input:word1 = "abcdeef", word2 = "abaaacc"Output:trueExplanation:The differences between the frequencies of each letter in word1 and word2 are at most 3: - 'a' appears 1 time in word1 and 4 times in word2. The difference is 3. - 'b' appears 1 time in word1 and 1 time in word2. The difference is 0. - 'c' appears 1 time in word1 and 2 times in word2. The difference is 1. - 'd' appears 1 time in word1 and 0 times in word2. The difference is 1. - 'e' appears 2 times in word1 and 0 times in word2. The difference is 2. - 'f' appears 1 time in word1 and 0 times in word2. The difference is 1.

**Example 3:**

Input:word1 = "cccddabba", word2 = "babababab"Output:trueExplanation:The differences between the frequencies of each letter in word1 and word2 are at most 3: - 'a' appears 2 times in word1 and 4 times in word2. The difference is 2. - 'b' appears 2 times in word1 and 5 times in word2. The difference is 3. - 'c' appears 3 times in word1 and 0 times in word2. The difference is 3. - 'd' appears 2 times in word1 and 0 times in word2. The difference is 2.

**Constraints: Check Whether Two Strings are Almost Equivalent solution leetcode**

`n == word1.length == word2.length`

`1 <= n <= 100`

`word1`

and`word2`

consist only of lowercase English letters.-
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