#11Medium#8 in ByteDance's list· asked at 9 companies
Accounts merge
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What we know
Example 1
Input: accounts = [["John","johnsmith@mail.com","john_newyork@mail.com"],["John","johnsmith@mail.com","john00@mail.com"],["Mary","mary@mail.com"],["John","johnnybravo@mail.com"]] Output: [["John","john00@mail.com","john_newyork@mail.com","johnsmith@mail.com"],["Mary","mary@mail.com"],["John","johnnybravo@mail.com"]]
Constraints
- •
1 <= accounts.length <= 1000 - •
2 <= accounts[i].length <= 10 - •
1 <= accounts[i][j].length <= 30 - •
accounts[i][0]consists of English letters and the rest are valid emails.