Your task is to implement a class that providesmethods ProcessTrade, Process PriceUpdate, OutputWorstrade. These method calls correspond to the instructionsdescribed above with the method arguments corresponding tothe update or query attributes.Constraints• 1 ≤ N, Tradeld, Price, Volume ≤ 105• It is guaranteed that price update for an instrument is availablebefore first trade on that instrument.Input Format For Custom TestingInput to the program is specified using a simple text format. Theformat and details of parsing are not relevant to answering thequestion but custom input can be used to help with developmentand debugging.The first line of input contains an integer N that denotes thenumber of instructions. Each of the N subsequent lines containseither an update or a query in the format below:Updates:4 TRADE . PRICE Query:. WORST TRADE Some example inputs and their expected outputs are describedbelow. Sample Case 1Sample input for custom testing:6PRICE Facebook 80PRICE Apple 120TRADE 100 Apple SELL 90 2TRADE 19 Facebook BUY 100 4WORST TRADE FacebookWORST TRADE AppleExpected output:10100Explanation:There are 2 instruments (Apple and Facebook), each of whichhas 1 trade. There are 2 queries, 1 for each instrument.1. PNL from tradelD 100: (90-120) * 2 = -60• Apple price at the time of the trade is 120 and we sell at 90,so we make a total loss of 60. We trade 2 lots, so the loss-per-lot is 30:2. PNL from tradelD. 10: (100 - 80) * 4 = 80o Facebook price at the time of the trade is 80 and we buy at100, so we make a total loss of 80. We trade 4 lots, so in totalwe make a loss-per-lot of 20.For both Facebook and Apple, we do exactly one bad tradewhich is hence also the worst trade for each instrument.

In this question we have to write a code for implementing a trade processing class that handles…

Your task is to implement a class that provides methods ProcessTrade, Process PriceUpdate, OutputWorst rade. These method calls correspond to the instructions described above with the method arguments corresponding to the update or query attributes. Constraints • 1 ≤ N, Tradeld, Price, Volume ≤ 106 It is guaranteed that price update for an instrument is available before first trade on that instrument. . Input Format For Custom Testing Input to the program is specified using a simple text format. The format and details of parsing are not relevant to answering the question but custom input can be used to help with development and debugging. The first line of input contains an integer N that denotes the number of instructions. Each of the N subsequent lines contains either an update or a query in the format below: Updates: . TRADE PRICE Query: • WORST TRADE Some example inputs and their expected outputs are described

Your task is to implement a class that provides methods ProcessTrade, Process PriceUpdate, OutputWorst rade. These method calls correspond to the instructions described above with the method arguments corresponding to the update or query attributes. Constraints • 1 ≤ N, Tradeld, Price, Volume ≤ 106 It is guaranteed that price update for an instrument is available before first trade on that instrument. . Input Format For Custom Testing Input to the program is specified using a simple text format. The format and details of parsing are not relevant to answering the question but custom input can be used to help with development and debugging. The first line of input contains an integer N that denotes the number of instructions. Each of the N subsequent lines contains either an update or a query in the format below: Updates: . TRADE PRICE Query: • WORST TRADE Some example inputs and their expected outputs are described

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

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Your task is to implement a class that provides
methods ProcessTrade, Process PriceUpdate, OutputWorst
rade. These method calls correspond to the instructions
described above with the method arguments corresponding to
the update or query attributes.
Constraints
• 1 ≤ N, Tradeld, Price, Volume ≤ 105
• It is guaranteed that price update for an instrument is available
before first trade on that instrument.
Input Format For Custom Testing
Input to the program is specified using a simple text format. The
format and details of parsing are not relevant to answering the
question but custom input can be used to help with development
and debugging.
The first line of input contains an integer N that denotes the
number of instructions. Each of the N subsequent lines contains
either an update or a query in the format below:
Updates:
4 TRADE <TradelD> <InstrumentID> <BUY/SELL> <Price> <Volume>
. PRICE <InstrumentID> <Price>
Query:
. WORST TRADE <InstrumentID>
Some example inputs and their expected outputs are described
below.

Sample Case 1
Sample input for custom testing:
6
PRICE Facebook 80
PRICE Apple 120
TRADE 100 Apple SELL 90 2
TRADE 19 Facebook BUY 100 4
WORST TRADE Facebook
WORST TRADE Apple
Expected output:
10
100
Explanation:
There are 2 instruments (Apple and Facebook), each of which
has 1 trade. There are 2 queries, 1 for each instrument.
1. PNL from tradelD 100: (90-120) * 2 = -60
• Apple price at the time of the trade is 120 and we sell at 90,
so we make a total loss of 60. We trade 2 lots, so the loss-per-
lot is 30:
2. PNL from tradelD. 10: (100 - 80) * 4 = 80
o Facebook price at the time of the trade is 80 and we buy at
100, so we make a total loss of 80. We trade 4 lots, so in total
we make a loss-per-lot of 20.
For both Facebook and Apple, we do exactly one bad trade
which is hence also the worst trade for each instrument.

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