2 Write the_code for the function printRoster, it should print out the contacts in a format similar to theexample. You can use a range-based for-loop and auto to simplify the solution, if you wish.} #include #include #include #include #include 3 using namespace std;) void printRoster(map>>& roster) {) |/ Fill code here| }2 int main({map>> roster;roster["UCLA"]["CS15"]. emplace_back("Anthony Davis");roster("UCLA"]["CS15"].emplace_back("Talen Horton-Tucker");5 roster("UCLA"]"MATH-101"]. emplace_back("LeBron James");1 roster("SMC"]["CHEM-101"]. emplace_back("Russel1 Westbrook");3 printRoster(roster);} return;Sample Output2 UCBMATH101:LeBron JamesCs15:Anthony DavisTalen Horton-TuckerSMCCHEM-101:Russell Westbrook

1. Run loop for each pair in roster i. print the key and end line. ii. run loop for each data present in pair.first a. print the '\t' and the data b. run loop for each item in data A. print '\t\t' and the value 2. Done #include<iostream>#include<list>#include<string>#include <utility>#include <map>using namespace std;void printRoster(map<string, map<string,list<string>>> & roster){ for(auto key : roster){ cout<<key.first<<"\n"; for(auto newkey : key.second){ cout<<"\t"<<newkey.first<<":\n"; for(auto data : newkey.second){ cout<<"\t\t"<<data<<"\n"; } } } }int main(int argc, char const *argv[]){ map<string, map<string,list<string>>> roster; roster["UCLA"]["CS15"].emplace_back("Anthony Davis"); roster["UCLA"]["CS15"].emplace_back("Talen Sorton-Tucker"); roster["UCLA"]["MATH-101"].emplace_back("LeBron James"); roster["UCLA"]["CHEm-101"].emplace_back("Russell Westbrook"); printRoster(roster); return 0;}Here SMC comes first because there is sorting with key behind the map storage. I tried the unordered_map too but result is same.

Answered: Write the_code for the function…

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Write the_code for the function printRoster, it should print out the contacts in a format similar to the example. You can use a range-based for-loop and auto to simplify the solution, if you wish.

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

2 Write the_code for the function printRoster, it should print out the contacts in a format similar to the
example. You can use a range-based for-loop and auto to simplify the solution, if you wish.
} #include <iostream>
#include <list>
#include <string>
#include <utility>
#include <map>
3 using namespace std;
) void printRoster(map<string, map<string, list<string>>>& roster) {
) |/ Fill code here
| }
2 int main({
map<string, map<string, list<string>>> roster;
roster["UCLA"]["CS15"]. emplace_back("Anthony Davis");
roster("UCLA"]["CS15"].emplace_back("Talen Horton-Tucker");
5 roster("UCLA"]"MATH-101"]. emplace_back("LeBron James");
1 roster("SMC"]["CHEM-101"]. emplace_back("Russel1 Westbrook");
3 printRoster(roster);
} return;
Sample Output
2 UCB
MATH101:
LeBron James
Cs15:
Anthony Davis
Talen Horton-Tucker
SMC
CHEM-101:
Russell Westbrook

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