func_code_string: #include <bits/stdc++.h>   using namespace std;   map<long long, long long> mp1, mp2;   long long n, k;   long long a[200001];   int main() {     ios_base::sync_with_stdio(false);     cin >> n >> k;     long long res = 0;     for (int i = 1; i <= n; ++i) cin >> a[i];     for (int i = n; i >= 1; --i) {       res += mp1[a[i] * k];       if (a[i] % k == 0) mp1[a[i]] += mp2[a[i] * k];       if (a[i] % (k * k) == 0) ++mp2[a[i]];     }     cout << res;   }   