Disk-scheduling
October 8, 2023NIC-NIELIT STA 2020
October 8, 2023GATE 2000
| Question 44 |
Given the following expression grammar:
E → E * F | F + E | F
F → F - F | id which of the following is true?
| * has higher precedence than + | |
| – has higher precedence than * | |
| + and – have same precedence | |
| + has higher precedence than * |
Question 44 Explanation:
The operator which is in low level that can have high preference.
Order of precedence is *, +, -.
Here * and + have equal preference, ‘-‘ can have higher precedence than + and *.
Order of precedence is *, +, -.
Here * and + have equal preference, ‘-‘ can have higher precedence than + and *.
Correct Answer: B
Question 44 Explanation:
The operator which is in low level that can have high preference.
Order of precedence is *, +, -.
Here * and + have equal preference, ‘-‘ can have higher precedence than + and *.
Order of precedence is *, +, -.
Here * and + have equal preference, ‘-‘ can have higher precedence than + and *.