从列表到数组c++中查找模式或最常看到的数字

#include <iostream>
#include <vector>
#include <unordered_map>

int findMostFrequentNumber(const std::vector<int>& nums) {
    std::unordered_map<int, int> countMap;
    int maxCount = 0;
    int mostFrequentNum = 0;
    
    for (int num : nums) {
        countMap[num]++;
        
        if (countMap[num] > maxCount) {
            maxCount = countMap[num];
            mostFrequentNum = num;
        }
    }
    
    return mostFrequentNum;
}

int main() {
    std::vector<int> nums = {1, 2, 2, 3, 3, 3, 4, 4, 4, 4};
    int mostFrequentNum = findMostFrequentNumber(nums);
    
    std::cout << "Most frequent number: " << mostFrequentNum << std::endl;
    
    return 0;
}