Index Pairs of a String
Understand how to use a Trie to identify all index pairs of substrings in a given string that appear in a unique list of words. Learn to return these pairs sorted by their start and end indices, helping you solve string matching problems efficiently.
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Statement
Given a string text and an array of strings words, return a list of all index pairs [i, j] such that the substring text[i...j] is present in words.
Return the pairs [i, j] in a sorted order, first by the value of i, and if two pairs have the same i, by the value of j.
Constraints:
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