func_code_string: #include <bits/stdc++.h>   using namespace std;   const int inf = 0x3f3f3f3f;   const int idata = 2e5 + 7;   int i, j, k;   int judge, flag;   long long step[idata];   long long temp;   int n, m, t;   double maxx = 0, minn = inf;   long long cnt, len, sum, ans;   long long high, wigh;   map<long long, int> pre[2];   signed main() {     while (cin >> n >> k) {       memset(step, 0, sizeof step);       for (i = 1; i <= n; i++) {         cin >> step[i];         pre[0][step[i]]++;       }       for (i = 1; i <= n; i++) {         pre[0][step[i]]--;         if (step[i] % k == 0) {           ans += (long long)pre[1][step[i] / k] * pre[0][step[i] * k];         }         pre[1][step[i]]++;       }       cout << ans << endl;     }     return 0;   }   