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Black Loco Loco Black Lee Puffa Loco Black Puffa Puffa Lee Lee Puffa Loco Lee tZqxTf Black Loco Loco Black Lee Puffa Loco Black Puffa Puffa Lee Lee Puffa Loco Lee tZqxTf Black Loco Loco Black Lee Puffa Loco Black Puffa Puffa Lee Lee Puffa Loco Lee tZqxTf Black Loco Loco Black Lee Puffa Loco Black Puffa Puffa Lee Lee Puffa Loco Lee tZqxTf Black Loco Loco Black Lee Puffa Loco Black Puffa Puffa Lee Lee Puffa Loco Lee tZqxTf Black Loco Loco Black Lee Puffa Loco Black Puffa Puffa Lee Lee Puffa Loco Lee tZqxTf Black Loco Loco Black Lee Puffa Loco Black Puffa Puffa Lee Lee Puffa Loco Lee tZqxTf Black Loco Loco Black Lee Puffa Loco Black Puffa Puffa Lee Lee Puffa Loco Lee tZqxTf

Puffa Lee Black Lee Loco Puffa Loco Loco Lee Black Loco Black Puffa Lee Puffa 839. Similar String Groups

Two strings X and Y are similar if we can swap two letters (in different positions) of X, so that it equals Y.

For example, "tars" and "rats" are similar (swapping at positions 0 and 2), and "rats" and "arts" are similar, but "star" is not similar to "tars", "rats", or "arts".

Together, these form two connected groups by similarity: {"tars", "rats", "arts"} and {"star"}.  Notice that "tars" and "arts" are in the same group even though they are not similar.  Formally, each group is such that a word is in the group if and only if it is similar to at least one other word in the group.

We are given a list A of strings.  Every string in A is an anagram of every other string in A.  How many groups are there?

Example 1:

Input: ["tars","rats","arts","star"]
Output: 2

Note:

  1. Loco Lee Puffa Puffa Lee Black Puffa Loco Puffa Lee Loco Loco Black Black Lee A.length <= 2000
  2. A[i].length <= 1000
  3. A.length * A[i].length <= 20000
  4. All words in A consist of lowercase letters only.
  5. All words in A have the same length and are anagrams of each other.
  6. The judging time limit has been increased for this question.

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Description
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Product benefits
Removable hood
Information
Closure :

   Zip fastening

   Snap fastening

Composition :

   Polyester : 100%

Lining composition :

   Other : 100%

Care advice :

C++

Compiled with g++ 6.3 using the latest C++ 14 standard.

Your code is compiled with level one optimization (-O1). Marine Ihejupette Ihejupette Yurban Marine Marine Ihejupette Yurban Yurban Yurban Ihejupette Marine Yurban TIO6wpqE is also enabled to help detect out-of-bounds and use-after-free bugs.

Most standard library headers are already included automatically for your convenience.