Project $27\mathrm{.}2$: Student Grades $($map$)$

Given a map pre$-$filled with student names as keys and grades as values, complete main$()$ by reading in the name of a student, outputting their original grade, and then reading in and outputting their new grade.

Ex: If the input is:

Quincy Wraight

$73\mathrm{.}1$

the output is:

Quincy Wraight's original grade: $65\mathrm{.}4$

Quincy Wraight's new grade: $73\mathrm{.}1$

Use this as a template for your file, a$2\mathrm{.}2.$cpp:

#include

#include

#include

using namespace std;

int main $()\{$

string studentName;

double studentGrade;

map studentGrades;

$//$ Students' grades $($pre$-$entered$)$

studentGrades.emplace$("$Harry Rawlins", $84\mathrm{.}3)$;

studentGrades.emplace$("$Stephanie Kong", $91\mathrm{.}0)$;

studentGrades.emplace$("$Shailen Tennyson", $78\mathrm{.}6)$;

studentGrades.emplace$("$Quincy Wraight", $65\mathrm{.}4)$;

studentGrades.emplace$("$Janine Antinori", $98\mathrm{.}2)$;

$//$ TODO: Read in new grade for a student, output initial

$//$ grade, replace with new grade in map,

$//$ output new grade

$\}$