Find the second most frequent element in a list.

Medium

Problem Statement

Sample Input

[1, 2, 3, 3, 2, 2, 1, 1, 1]

Sample Output

Limits

Time: 2s · Memory: 256 MB

Code Editor

00:00

import java.util.*; public class Main { public static int secondMostFrequent() { List<Integer> lst = Arrays.asList(1, 2, 3, 3, 2, 2, 1, 1, 1); // Your code here return 0; } }

Input

[1, 2, 3, 3, 2, 2, 1, 1, 1]

Expected Output

Custom Input (stdin)

Program Output

> Run your code to see console output.

Programming Exercises

Find the second most frequent element in a list.

Problem Statement

Sample Input

Sample Output

Limits

Hint 1