Explanation:

- A **Suffix Tree** is a compressed trie of all suffixes of a given string.
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- It allows efficient string matching, substring search, and various other operations on strings.

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Steps:

• Construct the tree by inserting all suffixes of a string.
• Each node represents a substring, and each edge represents a suffix of the string.

Time Complexity:

• Construction: O(n) where n is the length of the string.
• Querying: O(m), where m is the length of the substring being queried.

class SuffixTreeNode:
    def __init__(self):
        self.children = {}
        self.suffix_link = None
 
class SuffixTree:
    def __init__(self, text):
        self.text = text
        self.root = SuffixTreeNode()
        self.build()
 
    def build(self):
        # Placeholder for constructing suffix tree
        pass
 
# Example usage
suffix_tree = SuffixTree("banana")