Question

Below is the problem that I have and here is the code that I have in c++. Can someone help me on what I am doing wrong or the correct code.

A teacher has asked all her students to line up according to their first name. For example, in one class Amy will be at the front of the line, and Yolanda will be at the end. Write a program that prompts the user to enter the number of students in the class, then loops to read that many names. Once all the names have been read, it reports which student would be at the front of the line and which one would be at the end of the line. You may assume that no two students have the same name.

Input Validation: Do not accept a number less than 1 or greater than 25 for the number of students

#include "pch.h"
#include <iostream>
using namespace std;

int main()
{
   // declaring interger type values
   ifstream inputFile;
   string names[20];
   int i, n = 0;
   // opening a file
   inputFile.open("lineUp.txt");

   if (!inputFile)// check for file
       cout << "error in opening file\n";
   else
   {
       while (inputFile >> names[n])
       {
           n++;

       }
       n++;

       //sorting names
       int temp;
       // loop to iterate all names
       for (int i = 0;i <= n - 1;i++)
       {
           temp = i;
           //for string each string
           for (int j = i + 1;j

               if (names[j]
                   temp = j;
                   names[i].swap(names[temp]);
       }
       inputFile.close();

   }
   //end close
       //display name at front
   cout << "Front line:" <<names[1] << endl;
       //display name at end
       cout << "end line:" <<names[n - 1] << endl;
   //pause system for a while
   system("pause");
  
   return 0;
}
}

Answer 1

//C++ program

#include <iostream>
using namespace std;

int main()
{
// declaring interger type values
int no_of_students;
string front,end;


while(1){
        cout<<"Enter the number of students in the class : ";
        cin>>no_of_students;
        if(no_of_students>=1 && no_of_students<=25)break;
        cout<<"Number of students should between 1 and 25\n";
}

cin.get();
string name[no_of_students];

for(int i=0;i<no_of_students;i++){
       
        cout<<"Enter name of student-"<<i+1<<" : ";
        getline(cin,name[i]);
       
        if(i==0){
            front = name[0];
            end = name[0];
       }
       else{
           if(name[i]<front)front = name[i];
           if(name[i]>end) end = name[i];
       }
}

cout << "Front line:" <<front << endl;
//display name at end
cout << "end line:" <<end << endl;
//pause system for a while
system("pause");
  
return 0;
}

//sample output