C++(씨쁠쁠)(cplusplus)-백준(baekjoon)(BaekJoon)코딩 1037번:약수 답

#include <iostream>
using namespace std;
int compare(const void*a, const void*b) { return *(int*)a - *(int*)b; }
int main() {
    int N;
    cin >> N;
    int *a = new int[N];
    for (int i = 0; i < N; i++)
    {
        cin >> a[i];
    }
    qsort(a, N, sizeof(int), compare);
    cout << a[0] * a[N - 1];
}