/* Name: Florah Charles
Date: 02/21/2022
Assignment: Assignment#5
Due Date: 02/21/2022
About this project: This program will calculate the NFL passer rating for 2
quarterbacks using the real formula used in the National Football League. The
program will display the passer rating for each quarterback, and then prints a
message detailing who's rating was the best, and what the difference between the
ratings was. The program will then allow the user to repeat this process, if they
choose.
Assumptions: Assumes correct user input
All work below was performed by Florah Charles */
#include <iostream>
#include <iomanip>
using namespace std;
double getPasserRating(int, int, int, int, int);
double check(double);
int main()
{
int att1, att2, com1, com2, py1, py2, td1, td2, inter1, inter2, total;
double rating1, rating2;
char compare;
cout << "Welcome to the NFL Quarterback Passer Rating Calculator!" << endl;
do{
cout << "\nEnter single game information for Player A:" << endl;
cout << "Attempts: ";
cin >> att1;
cout << "Completions: ";
cin >> com1;
cout << "Passing Yards: ";
cin >> py1;
cout << "Touchdowns: ";
cin >> td1;
cout << "Interceptions: ";
cin >> inter1;
cout << "\nEnter single game information for Player B:" << endl;
cout << "Attempts: ";
cin >> att2;
cout << "Completions: ";
cin >> com2;
cout << "Passing Yards: ";
cin >> py2;
cout << "Touchdowns: ";
cin >> td2;
cout << "Interceptions: ";
cin >> inter2;
rating1 = getPasserRating(att1, com1, py1, td1, inter1);
rating2 = getPasserRating(att2, com2, py2, td2, inter2);
cout << "\nPlayer A's single game passer rating: " << fixed << setprecision(1) << rating1 << endl;
cout << "Player B's single game passer rating: " << fixed << setprecision(1) << rating2 << endl;
total++;
if (rating1 > rating2)
{
cout << "Player A was better than Player B by a difference of ";
cout << rating1-rating2;
if(rating1 == 158.3)
{
cout << "Player A had a PERFECT passer rating.";
}
}
else if(rating2 > rating1)
{
cout << "Player B was better than Player A by a difference of ";
cout << rating2-rating1;
if(rating2 == 158.3)
{
cout << "Player B had a PERFECT passer rating.";
}
}
else
{
cout << "Player A and B have the same rating!";
}
cout << "\n \nWould you like to compare another pair of players? (Y or N) ";
cin >> compare;
} while(compare == 'Y' || compare == 'y');
if(compare == 'N' || compare == 'n')
{
if(total == 1)
{
cout << "You compared " << total << " pair of players.";
}
else
{
cout << "You compared " << total << " pairs of players.";
}
}
else
{
cout << "Invalid entry. Exiting program...";
}
return 0;
}
double check(double checking)
{
if(checking > 2.375)
{
checking = 2.375;
}
else if (checking < 0)
{
checking = 0;
}
return checking;
}
double getPasserRating(int att, int comp, int yds, int td, int inter)
{
double a, b, c, d, pr;
a = (((comp/att) - 0.3)*5);
b = (((yds/att) - 3)*0.25);
c = ((td/att)*20);
d = 2.375 - ((inter/att)*25);
a = check(a);
b = check(b);
c = check(c);
d = check(d);
pr = ((a+b+c+d)/6)*100;
return pr;
} Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!
OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.
#include <iostream>
#include <string>
using namespace std;
int main()
{
string name;
cout << "Enter name:";
getline (cin, name);
cout << "Hello " << name;
return 0;
}
C++ is a widely used middle-level programming language.
When ever you want to perform a set of operations based on a condition If-Else is used.
if(conditional-expression) {
//code
}
else {
//code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression){
case value1:
// code
break; // optional
case value2:
// code
break; // optional
......
default:
code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement){
//code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while (condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
// code
}