Step 1: Understand what an LL parser is. It is a type of parser that reads input from left to right and produces a leftmost derivation of the sentence.
Step 2: Learn about grammars. A grammar is a set of rules that defines how sentences in a language can be formed.
Step 3: Know what ambiguous grammars are. An ambiguous grammar is one that can produce more than one valid parse tree for the same input string.
Step 4: Recognize the limitation. LL parsers cannot process ambiguous grammars because they rely on a single way to interpret the input.
Step 5: Understand the impact. This limitation means that LL parsers cannot be used for all types of programming languages or expressions, especially those that are ambiguous.
