C++ Exercises: Prints three highest numbers from a list of numbers in descending order

Last update on April 05 2025 13:31:19 (UTC/GMT +8 hours)

Top 3 Highest Numbers

Write a C++ program that prints the three highest numbers from a list of numbers in descending order.

Visual Presentation:

Sample Solution:

C++ Code :

#include <iostream> // Including input-output stream header file
#include <vector>   // Including vector header file
#include <algorithm> // Including algorithm header file for sort function
using namespace std; // Using the standard namespace

int main() { // Start of the main function
    vector<int> nums; // Declaring a vector to store integers

    int n;
    while (cin >> n) { // Loop to read integers from input until the end of input (Ctrl+D in terminal)
        nums.push_back(n); // Storing the read integers in the vector
    }

    sort(nums.rbegin(), nums.rend()); // Sorting the vector in descending order

    for (int i = 0; i != 3; ++i) { // Looping three times to print the first three elements of the sorted vector
        cout << nums[i] << endl; // Printing the elements
    }

    return 0; // Indicating successful completion of the program
}

Sample Output:

Sample input : 2 5 3 7 29 1
Sample Output: 
29
7
5

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C++ program that reads a list of numbers and prints the three highest unique numbers in descending order.
• Write a C++ program to determine the top 3 highest numbers from an array using sorting and then without sorting.
• Write a C++ program that finds the three largest numbers in a list using a single-pass algorithm and displays them in descending order.
• Write a C++ program to read numbers until a sentinel value is entered and then print the three highest numbers along with their indices.

C++ Code Editor:

Click to Open Editor

Previous: Write a C++ program to which reads an given integer n and prints a twin prime which has the maximum size among twin primes less than or equals to n.
Next: Write a C++ program to compute the sum of the two given integers and count the number of digits of the sum value.