Answer to Question #187790 in C++ for Devashish Yadav

Question

Teacher has Prepared the result of a class containing n number of students. He wants to give the award to 3 toppers of the class. Display the result for 3 toppers as reflected as percentage form in floating type data

Answer 1

#include <iostream>
#include <string>
using std::string;
using std::cin;
using std::cout;
using std::endl;


struct Student
{
    string name;
    float  percentage{ -1 };
};


int main()
{
    const int n = 3;
    Student stud[n];
    Student result[3];
    // Input of initial data
    for (int i = 0; i < n; i++) 
    {
        cout << "Enter student's name: ";
        cin>> stud[i].name;
        cout << "Enter the test result as a percentage: ";
        cin >> stud[i].percentage;
    }
    // data processing
    for (int i = 0; i < n; i++) 
    {
        if (stud[i].percentage > result[0].percentage) 
        {
            result[2].name = result[1].name;
            result[2].percentage = result[1].percentage;
            result[1].name = result[0].name;
            result[1].percentage = result[0].percentage;
            result[0].name = stud[i].name;
            result[0].percentage = stud[i].percentage;
            
        }
        else if (stud[i].percentage <= result[0].percentage && stud[i].percentage > result[1].percentage) 
        {
            result[2].name = result[1].name;
            result[2].percentage = result[1].percentage;
            result[1].name = stud[i].name;
            result[1].percentage = stud[i].percentage;
        }
        else if (stud[i].percentage <= result[1].percentage && stud[i].percentage > result[2].percentage) 
        {
            result[2].name = stud[i].name;
            result[2].percentage = stud[i].percentage;
        }
    }
    // output result
    cout << "Students top print" << endl;
    for (int i = 0; i < 3; i++) 
    {
        cout << i + 1 << "   " << result[i].name << "    " << result[i].percentage << endl;
    }
    return 0;
}