1#include <iostream>
2#include <vector>
3using namespace std;
4
5vector<int> findConsecutiveNumbers(vector<int> nums) {
6    vector<int> result;
7    int count = 1;
8    for (size_t i = 1; i < nums.size(); i++) {
9        if (nums[i] == nums[i - 1]) {
10            count++;
11            if (count == 3) result.push_back(nums[i]);
12        } else {
13            count = 1;
14        }
15    }
16    return result;
17}
18
19int main() {
20    vector<int> nums = {1, 1, 1, 2, 1, 2, 2};
21    vector<int> result = findConsecutiveNumbers(nums);
22    for (int num : result) cout << num << endl;
23    return 0;
24}
25

1using System;
using System.Collections.Generic;

class Program {
    static List<int> FindConsecutiveNumbers(int[] nums) {
        var count = new Dictionary<int, bool>();
        var result = new List<int>();
        int consecutive = 1;
        for (int i = 1; i < nums.Length; i++) {
            if (nums[i] == nums[i - 1]) {
                consecutive++;
                if (consecutive == 3 && !count.ContainsKey(nums[i])) {
                    result.Add(nums[i]);
                    count[nums[i]] = true;
                }
            } else {
                consecutive = 1;
            }
        }
        return result;
    }

    static void Main() {
        int[] nums = {1, 1, 1, 2, 1, 2, 2};
        var result = FindConsecutiveNumbers(nums);
        foreach (var num in result) {
            Console.WriteLine(num);
        }
    }
}