GATE CS 2019 Set 1 — Question 53
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Compiler Design → Syntax Analysis → LR(0) & SLR(1)
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Question
Consider the augmented grammar given below:
Let . The number of items in the set is ________.
Let . The number of items in the set is ________.
Correct answer
5 to 5
Solution
The augmented grammar is:
Moving the dot gives the kernel item: .Now, compute :
1.
2.
3.
4.
L → L, S5.
contains:L → SMoving the dot gives the kernel item: .Now, compute :
1. (Kernel item)
- The dot is before , so we add productions of with the dot at the beginning:
3.
- From item 2, the dot is before , which we are already processing.
- From item 3, the dot is before , so we add productions of with the dot at the beginning:
5.
The items in are:1.
2.
3.
4.
5.
Total number of items = 5.Continue learning with Success Tracker
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