Question

Write a C++ program that reads a list of numbers 10 and displays largest,
second largest and third largest.

Note: Please do it with loops don't used arrays

Answer 1

#include<iostream>
using namespace std;
int main()
{
        int i,f=0,s=0,m=0,num,temp,temp1;
        for(i=0;i<10;i++)
        {
                cout<<"enter the " <<i+1<<" number\n";
                cin>>num;
                if(i==0)
                        {
                        f=num;  
                        }
                if(i==1)
                        {
                        if(f<num)
                        {       
                                temp=f;
                                f=num;
                                s=temp;
                        }
                        else if(f==num)
                        {
                                continue;       
                        }
                        else
                        {
                                s=num;
                        }
                        
                        }                       
                else
                {
                        if(f==num||s==num)
                        {
                                continue;
                        }
                        if(f<num)
                                {
                                temp=f;
                                f=num;
                                temp1=s;
                                s=temp;
                                m=temp1;
                                }
                        else if(s<num)
                        {
                                temp=s;
                                s=num;
                                m=temp;                 
                        }       
                        else if(num>m)
                                {
                                        m=num;
                                }
                        else
                         continue;              
                }
        }
        if(s==0)
        {
        cout<<"1st:"<<f<<" \t Not yet found 2nd largest elemnt \t Not yet found 3rd largest elemnt";  
                
        }
        if(s!=0 && m==0)
        {
        cout<<"1st:"<<f<<"\t2nd:"<<s<<"\t Not yet found 3rd largest elemnt";
                        
        }
        else
        {
        cout<<"1st largest:"<<f<<"\t2nd largest:"<<s<<"\t3rdlargest:"<<m;
        return 0;
        }
}

output::

Answer 2

Here's a C++ program that reads a list of 10 numbers and displays the largest, second largest, and third largest numbers using loops:

cppCopy code#include <iostream>int main() {    int largest = INT_MIN;    int secondLargest = INT_MIN;    int thirdLargest = INT_MIN;    for (int i = 1; i <= 10; i++) {        int num;
        std::cout << "Enter number " << i << ": ";
        std::cin >> num;        if (num > largest) {
            thirdLargest = secondLargest;
            secondLargest = largest;
            largest = num;
        } else if (num > secondLargest) {
            thirdLargest = secondLargest;
            secondLargest = num;
        } else if (num > thirdLargest) {
            thirdLargest = num;
        }
    }

    std::cout << "Largest: " << largest << std::endl;
    std::cout << "Second Largest: " << secondLargest << std::endl;
    std::cout << "Third Largest: " << thirdLargest << std::endl;    return 0;
}

In this program, we initialize three variables (largest, secondLargest, and thirdLargest) with the minimum possible integer value (INT_MIN). We then use a loop to read 10 numbers from the user. For each number, we compare it with the current largest, second largest, and third largest numbers and update the variables accordingly.

Finally, we display the largest, second largest, and third largest numbers obtained from the loop.