Computers and Technology, 01.04.2020 22:09 yedida
HW4:
1) Implement MyArrayStack (constructor, push, pop, peek and isEmpty), and MyLinkedQueue with both next and previous pointers (constructor enqueuer/offer, dequeuer/poll, peek and isEmpty), and write the following two program to test them.
2) For stack testing, write a program to check if a string has matching parenthesis such as "(O)", but not "(.
3) For stack testing, use it to "Evaluating Expressions" using the algorithm given below.
The Algorithm for Step 3:
Phase 1: Scanning the expression
The program scans the expression from left to right to extract operands, operators, and the parentheses.
1.1. If the extracted item is an operand, push it to operandStack.
1.2. If the extracted item is a + or - operator, process all the operators at the top of operatorStack and push the extracted operator to operatorStack.
1.3. If the extracted item is a or / operator, process the or/operators at the top of operatorStack and push the extracted operator to operatorStack.
1.4. If the extracted item is a ( symbol, push it to operatorStack.
1.5. If the extracted item is a ) symbol, repeatedly process the operators from the top of operatorStack until seeing the ( symbol on the stack
Phase 2: Clearing the stack
Repeatedly process the operators from the top of operatorStack until operatorStack is empty.
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HW4:
1) Implement MyArrayStack (constructor, push, pop, peek and isEmpty), and MyLinked...
1) Implement MyArrayStack (constructor, push, pop, peek and isEmpty), and MyLinked...
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