Stack Operations Given two integer arrays pushed and popped each with distinct values, return true if this could have been the result of a sequence of push and pop operations on an initially empty stack, or false otherwise. Example 1: Input: pushed = [1,2,3,4,5], popped = [4,5,3,2,1] Output: true Explanation: We might do the following sequence: push (1), push(2), push(3), push(4), pop() -> 4, push(5), pop() -> 5, pop() -> 3, pop() -> 2, pop() -> 1
Stack Operations Given two integer arrays pushed and popped each with distinct values, return true if this could have been the result of a sequence of push and pop operations on an initially empty stack, or false otherwise. Example 1: Input: pushed = [1,2,3,4,5], popped = [4,5,3,2,1] Output: true Explanation: We might do the following sequence: push (1), push(2), push(3), push(4), pop() -> 4, push(5), pop() -> 5, pop() -> 3, pop() -> 2, pop() -> 1
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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![Stack Operations
Given two integer arrays pushed and popped each with
distinct values, return true if this could have been the
result of a sequence of push and pop operations on an
initially empty stack, or false otherwise.
Example 1:
Input: pushed = [1,2,3,4,5], popped =
[4,5,3,2,1]
Output: true
Explanation: We might do the following
sequence:
push (1), push(2), push(3), push(4),
pop() -> 4,
push(5),
pop() -> 5, pop() -> 3, pop() -> 2, pop()
-> 1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb70b8a77-011f-4af2-b227-23713475f637%2F28c85f00-bd1d-4020-88f0-579488509d3b%2F5dmfjpg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Stack Operations
Given two integer arrays pushed and popped each with
distinct values, return true if this could have been the
result of a sequence of push and pop operations on an
initially empty stack, or false otherwise.
Example 1:
Input: pushed = [1,2,3,4,5], popped =
[4,5,3,2,1]
Output: true
Explanation: We might do the following
sequence:
push (1), push(2), push(3), push(4),
pop() -> 4,
push(5),
pop() -> 5, pop() -> 3, pop() -> 2, pop()
-> 1
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