Säähavainnot

#include <bits/stdc++.h>
 
using namespace std;
 
void init_code() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
#ifndef ONLINE_JUDGE
  freopen("input.txt", "r", stdin);
  freopen("output.txt", "w", stdout);
#endif
}
 
void solve() {
    int n = 24;
    vector<double> a(n);

    double mean_change = 0;
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
        if (i != 0) {
            mean_change += (a[i] - a[i - 1]);
        } 
    }
    mean_change = mean_change / (n - 1);

    mt19937 mersenne(static_cast<unsigned int>(time(0)));

    uniform_real_distribution<> ng(-0.683961, 0.0);
    uniform_real_distribution<> ps(0.0, 0.522416);
 
    double last = a.back();
    for (int i = 0; i < 12; ++i) {
        last = (abs(a[i] - last) < abs(a[23 - i] - last)) ? a[i] : a[23 - i];
        double x = last;
        if (mean_change < 0) {
            last += (mean_change + ng(mersenne) / 10);
        } else {
            last += (mean_change + ps(mersenne) / 10);
        }
        last = (x * 1.4 + last) / 1.9;

        int k = mersenne();
        if ((k % 101) >= 90) {
            cout << '?' << ' ';
        } else {
            cout << last << ' ';   
        }
    }
    cout << '\n';
}
 
signed main() {
  init_code();
  int t = 1;
  cin >> t;
  while (t--) {
    solve();
  }
  return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED