Question

I need to update this C++ code according to these instructions. The team name should be "Scooterbacks".

I appreciate any help!

Create a text based menu to perform the following functions: -Enter "" Display team name. -Enter "1" Sort players from highest score to lowest score and display to screen -Enter "2" Search by player name. Enter "3" Search by jersey number Enter "4" Search by position played -Enter "5" Sort by player name and display to screen. -Enter "6" Sort by jersey number and display to screen. Enter "7" Sort by position and display to screen. -Enter "8" Print to file. -Enter"9" to Exit.

Here is my code:

#include <iostream>
#include <string>
#include <fstream>

using namespace std;

void menu();

int loadFile(string file,string names[],int jNo[],string pos[],int scores[]);
string lowestScorer(string names[],int scores[],int size);
string highestScorer(string names[],int scores[],int size);
void searchByName(string names[],int jNo[],string pos[],int scores[],int size);
int totalPoints(int scores[],int size);
void sortByName(string names[],int jNo[],string pos[],int scores[],int size);
void displayToScreen(string names[],int jNo[],string pos[],int scores[],int size);
void writeToFile(string filename,string names[],int jNo[],string pos[],int scores[],int size);

const int SIZE=25;

int main()
{
string names[SIZE],pos[SIZE];
int jNo[SIZE],scores[SIZE];
string filename;
int ch=0;

cout<<"Enter file name to read player stats : ";cin>>filename;
int size=loadFile(filename,names,jNo,pos,scores);

while(ch!=8)
{
menu();
cin>>ch;//input choice

switch(ch)
{
case 1:
//Displays lowest scorer and their score.
cout<<"\nLowest scorer : "<<lowestScorer(names,scores,size);
break;
case 2:
//Displays highest scorer and their score.
cout<<"\nHighest scorer : "<<highestScorer(names,scores,size);
break;

case 3:
/*Asks user to enter a name. If the user enters one of the players'
names, the program displays that player's name, their
jersey number, their position on the team, and their score.
*/
searchByName(names,jNo,pos,scores,size);
break;

case 4:
//Displays the team's combined point total.
cout<<"\nTotal Points : "<<totalPoints(scores,size);
break;

case 5:
/*Alphabetically sorts the player names, then displays the sorted
list of players along with their respective jersey numbers,
positions, and individual scores.
*/
sortByName(names,jNo,pos,scores,size);
cout<<"\nSorted list of players "<<endl;
displayToScreen(names,jNo,pos,scores,size);
break;

case 6:
/*Displays the list of players along with their respective
jersey numbers, positions, and individual scores. If the user
selects this option before sorting the names, the player stats
will be displayed in the order they appear in
the file "scores.txt".
*/
displayToScreen(names,jNo,pos,scores,size);
break;
case 7:
/*Writes player stats to a file. If the user
selects this option before sorting the names, the player stats
will be written to the new file in the order they appear in
the file "scores.txt".
*/
cout<<"\nEnter filename to write : ";cin>>filename;
writeToFile(filename,names,jNo,pos,scores,size);
break;
case 8:
//Quits and closes the program.
cout<<"Goodbye.";
break;
default:
cout<<"Invalid menu choice, try again!!";
}
}

return 0;
}

void menu()
{
cout<<"\n1. Lowest scorer"<<endl;
cout<<"2. Highest scorer"<<endl;
cout<<"3. Search by Name"<<endl;
cout<<"4. Total team points"<<endl;
cout<<"5. Sort by names"<<endl;
cout<<"6. Display all"<<endl;
cout<<"7. Write to file"<<endl;
cout<<"8. Exit"<<endl;
}

int loadFile(string file,string names[],int jNo[],string pos[],int scores[])
{
ifstream infile(file.c_str());//open file for reading
int count=0;//initially count is 0

infile>>names[count]>>jNo[count]>>pos[count]>>scores[count];

count++;
while(!infile.eof()) //read until end of file
{
infile>>names[count]>>jNo[count]>>pos[count]>>scores[count];
count++;
}
infile.close(); //close file
return count;
}

string lowestScorer(string names[],int scores[],int size)
{
int score=scores[0];
string name;
for(int i=0;i<size;i++)
{
if(score>scores[i])
{
score = scores[i];
name=names[i];
}
}
return name;
}

string highestScorer(string names[],int scores[],int size)
{
int score=scores[0];
int indx=0;
for(int i=0;i<size;i++)
{
if(score<scores[i])
{
//as in each new high score it needs to be updated
score = scores[i];
indx=i;
}
}

return names[indx];
}

void searchByName(string names[],int jNo[],string pos[],int scores[],int size)
{
string name;
bool flag=false;
cout<<"Enter player name to search (seach is case sensitive) : ";cin>>name;
for(int i=0;i<size;i++)
{
if(name==names[i]) //compare and found
{
cout<<names[i]<<", "<<jNo[i]<<", "<<pos[i]<<", "<<scores[i]<<endl;
flag=true;
break;
}
}
if(!flag)
cout<<"\nThere is no player with that name.";
}

int totalPoints(int scores[],int size)
{
int total=0;
for(int i=0;i<size;i++)
total+=scores[i];
return total;
}

//function sorts by player name, jersey number, and score
void sortByName(string names[],int jNo[],string pos[],int scores[],int size)
{
//using bubble sort
for(int i=0;i<size-1;i++)
for(int j=0;j<size-i-1;j++)
{
if(names[j]>names[j+1])
{

string t1=names[j];
names[j]=names[j+1];
names[j+1]=t1;

int t2=jNo[j];
jNo[j]=jNo[j+1];
jNo[j+1]=t2;

string t3=pos[j];
pos[j]=pos[j+1];
pos[j+1]=t3;

int t4=scores[j];
scores[j]=scores[j+1];
scores[j+1]=t4;
}

}
}

void writeToFile(string filename,string names[],int jNo[],string pos[],int scores[],int size)
{
ofstream outfile(filename.c_str());//open file for writing
for(int i=0;i<size;i++)
{
outfile<<names[i]<<" "<<jNo[i]<<" "<<pos[i]<<" "<<scores[i]<<endl;
}

outfile.close();
cout<<"\nData is written to "<<filename;
}

void displayToScreen(string names[],int jNo[],string pos[],int scores[],int size)
{
for(int i=0;i<size;i++)
{
cout<<names[i]<<", "<<jNo[i]<<", "<<pos[i]<<", "<<scores[i]<<endl;
}
}

/*file to read from—>scores.txt:

Drake 9 LeftWideReceiver 13
Clemont 11 LeftTackle 1
Sean 7 LeftGuard 1
Noah 5 Center 7
Sam 10 RightGuard 1
Will 8 RightTackle 1
Josh 3 TightEnd 6
Matt 4 Quarterback 21
Rob 6 FullBack 6
Timmy 2 HalfBack 6
Eddy 1 RightWideReceiver 13
Alfred 12 Substitution 0
Freddy 16 Substituion 1
Billy 23 Substituiton 3
Tommy 20 Substitution 1
*/

Answer 1

#include <iostream>
#include <cstring>
#include <fstream>
#include <algorithm>

using namespace std ;

struct player {
   string name ;
   int jersynumber ;
   string position ;
   int score ;
} ;

// assuming u know about comparators

// this is comparator to sort players by high to low score
bool scoreComparator(player a, player b){
   return a.score >= b.score ;
}
// this is comparator to sort by names
bool nameComaprator(player a, player b){
   return a.name < b.name ;
}
// this is comparator to sort by jersy number
bool jersyComaparator(player a, player b){
   return a.jersynumber < b.jersynumber ;
}
// this is comparator to sort by position of the player
bool positionComparator(player a, player b){
   return a.position < b.position ;
}

// sorting the players based on the scores using scoreComaprator
void sortByScoresHighToLow(player playerList[], int n){
   sort(playerList, playerList+n, scoreComparator);
}
//searching players with playername as key
void searchByPlayerName(player playerList[], int n, string playerName){
   for (int i = 0; i < n; ++i){
       // if player name is found then printiing details and exiting
       if(playerList[i].name == playerName){
           player p = playerList[i] ;
           cout << "found ..... " << endl ;
           cout << p.name << " " << p.jersynumber << " " << p.position << " " << p.score << endl << endl;
           return ;
       }
   }
   // if anything not found then printing message
   cout << "Player Not found" << endl << endl;
}
//searching players with jersy number as key
void searchByJersy(player playerList[], int n, int jersyNumber){
   for (int i = 0; i < n; ++i){
       // if player jersy is found then printiing details and exiting
       if(playerList[i].jersynumber == jersyNumber){
           player p = playerList[i] ;
           cout << "found ..... " << endl ;
           cout << p.name << " " << p.jersynumber << " " << p.position << " " << p.score << endl << endl;
           return ;
       }
   }
   // if anything not found then printing message
   cout << "Player Not found" << endl << endl ;
}
//searching players with position as key
void searchByPosition(player playerList[], int n, string position){
   bool b = false ;
   for (int i = 0; i < n; ++i){
       // if player position is found then printiing details and exiting
       if(playerList[i].position == position){
           b = true ;
           player p = playerList[i] ;
           cout << p.name << " " << p.jersynumber << " " << p.position << " " << p.score << endl << endl;
           return ;
       }
   }
   // if anything not found then printing message
   if(!b) cout << "Player Not found" << endl << endl ;
}

// sorting the players based on the names using nameComaprator
void sortByName(player playerList[], int n){
   sort(playerList, playerList+n, nameComaprator);
}
// sorting the players based on the Jersy number using jersyComaparator
void sortByJersy(player playerList[], int n){
   sort(playerList, playerList+n, jersyComaparator);
}
// sorting the players based on the positions using positionComparator
void sortByPosition(player playerList[], int n){
   sort(playerList, playerList+n, positionComparator);
}

void printToScreen(player playerList[], int n){
   player p ;
   // printing all values to screen
   for (int i = 0; i < n; ++i){
       p = playerList[i] ;
       cout << p.name << " " << p.jersynumber << " " << p.position << " " << p.score << endl;
   }
   cout << endl ;
}

int loadFile(char filename[], player plist[]){
   ifstream fin ;
   fin.open(filename); // loading file object
   int index = 0 ;
   while(!fin.eof()){
       // reading from file
       fin >> plist[index].name >> plist[index].jersynumber >> plist[index].position >> plist[index].score ;
       index++;
   }
   // returning number of players read
   return index ;
}

void printToFile(char filename[], player plist[], int n){
   player p ;
   ofstream fout ; // loading output file object
   fout.open(filename);
   // wrinting every player into a file
   for (int i = 0; i < n; ++i){
       p = plist[i] ;
       fout << p.name << " " << p.jersynumber << " " << p.position << " " << p.score << endl ;
   }

}

// you can change this depending on the contents of the files
const int SIZE=25;

int main(int argc, char const *argv[])
{
   player plist[SIZE] ;

   // u can write code to display the menu
   int option ;
   char filename[1000] ;
   cout << "enter filename : " ;
   cin >> filename ;
   int n = loadFile(filename, plist);
   string tp ;
   int pt ;
   do{
       // you can just display the menu here ...
       cout << "enter a option : " ;
       cin >> option ;
       switch(option){
           case 0 :
               printToScreen(plist, n);
               break ;
           case 1 :
               sortByScoresHighToLow(plist, n);
               printToScreen(plist, n);
               break ;
           case 2 :
               cout << "enter name :" ;
               cin >> tp ;
               searchByPlayerName(plist, n, tp);
               break ;
           case 3 :
               cout << "enter jersy number : ";
               cin >> pt ;
               searchByJersy(plist, n, pt);
               break ;
           case 4 :
               cout << "enter position : " ;
               cin >> tp ;
               searchByPosition(plist, n, tp);
               break ;
           case 5 :
               sortByName(plist, n);
               printToScreen(plist, n);
               break ;
           case 6 :
               sortByJersy(plist, n);
               printToScreen(plist, n);
               break ;
           case 7 :
               sortByPosition(plist, n);
               printToScreen(plist, n);
               break ;
           case 8 :
               cout << "enter filename : " ;
               cin >> filename ;
               printToFile(filename, plist, n);
               break ;
           case 9 :
               cout << "\nexiting ..... \n" ;
               break ;
           default :
               cout << "wrong option\n " ;
               break ;
       }

   }while(option != 9) ;

   return 0;
}