Program that accepts 10 numbers and will then display and count the repeating numbers. (Array Exercises #3)

repeating nums.cpp

#include <unordered_map>
#include <vector>
#include <iostream>
using namespace std;

unordered_map<int, unsigned int> c(const vector<int> & x) {
    unordered_map<int, unsigned int> z;

    for (auto y : x) {
        z[y]++;
    }

    return z;
}

void display(const unordered_map<int, unsigned int> & counts) {
    for (auto count : counts) {
        cout << count.first << " = " << count.second << ", ";
    }
}

int main(int argc, char** argv) {
    vector<int> array = { 1, 1, 9, 7, 8, 6, 4, 6, 6 };
    display(c(array));

    return 0;
}