You are an investor who receives daily price quotes for a stock. The span of a stock's price on a given day is the number of consecutive days, from the given day going backwards, on which its price was less than or equal to its price on the day we are considering. Thus, the Stock Span Problem is as follows: Given a series of daily price quotes for a stock, find the span of the stock on each day of the series. Assume you are given seven daily stock quotes: 3, 10, 4, 7, 9, 6, and 8. Assume further that these stock quotes are stored in the array quotes. Show a step-by-step, manual desk-check execution of the algorithm below showing the values of all variables and arrays for each step in each cycle of each loop, as demonstrated in clase

You are an investor who receives daily price quotes for a stock. The span of a stock's price on a given day is the number of consecutive days, from the given day going backwards, on which its price was less than or equal to its price on the day we are considering. Thus, the Stock Span Problem is as follows: Given a series of daily price quotes for a stock, find the span of the stock on each day of the series. Assume you are given seven daily stock quotes: 3, 10, 4, 7, 9, 6, and 8. Assume further that these stock quotes are stored in the array quotes. Show a step-by-step, manual desk-check execution of the algorithm below showing the values of all variables and arrays for each step in each cycle of each loop, as demonstrated in clase

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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Question

You are an investor who receives daily price quotes for a stock. The span of a stock's price on a given day
is the number of consecutive days, from the given day going backwards, on which its price was less than
or equal to its price on the day we are considering. Thus, the Stock Span Problem is as follows: Given a
series of daily price quotes for a stock, find the span of the stock on each day of the series.
Assume you are given seven daily stock quotes: 3, 10, 4, 7, 9, 6, and 8.
Assume further that these stock quotes are stored in the array quotes. Show a step-by-step, manual
desk-check execution of the algorithm below showing the values of all variables and arrays for each
step in each cycle of each loop, as demonstrated in clase
Algorithm: A Simple Stock Span Algorithm
SimpleStockSpan (quotes) → spans
Input: quotes, an array with n stock price quotes
Output: spans, an array with n stock price spans
2
3
4
5
6
7
8
10
11
spans CreateArray (n)
←
for i0 to n do
k 1
span_end FALSE
while i- k ≥ 0 and not span_end do
if quotes[ik] ≤ quotes[i] then
k+k+1
else
span_end TRUE
spans[i]+ k
return spans

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