Question

How to get the top 3 largest values from array in C#

Answer 1

using System;

class Program
{
    static int first, second, third;
     
    static void getTop3(int[] arr) {
        int len = arr.Length;
 
        if (len < 3) {
            return;
        }
 
        first = third = second = Int32.MinValue;

        for (int i = 0; i < len; i++) {
            if (arr[i] > first) {
                third = second;
                second = first;
                first = arr[i];
            }
 
            else if (arr[i] > second) {
                third = second;
                second = arr[i];
            }
 
            else if (arr[i] > third)
                third = arr[i];
        }
    }
    static void Main() {
        int[] arr = new int[] { 12, 98, 80, 50, 88, 35, 70, 60, 97, 85, 89 };

        getTop3(arr);
        
        Console.WriteLine(first + " " + second + " " + third);
    }
}




/*
run:

98 97 89

*/

 

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