Add a bunch of other problems.

Some are not finished...

2024 United Kingdom and Ireland Programming Contest (UKIEPC 2024)/D. Drone Control.cpp

@@ -0,0 +1,123 @@
+/* Problem URL: https://codeforces.com/gym/105446/problem/D */
+
+#include <bits/stdc++.h>
+
+#include <algorithm>
+
+using namespace std;
+
+#define V vector
+
+#define rmin(a, b) a = min(a, b)
+#define rmax(a, b) a = max(a, b)
+
+#define rep(i, lim) for (int i = 0; i < (lim); i++)
+#define nrep(i, s, lim) for (int i = s; i < (lim); i++)
+
+#define repv(i, v) for (auto &i : (v))
+#define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; }
+#define sortv(v) sort(v.begin(), v.end())
+#define all(v) (v).begin(), (v).end()
+
+using vi = vector<int>;
+using vvi = vector<vi>;
+using vvvi = vector<vvi>;
+using vvvvi = vector<vvvi>;
+
+using ll = long long;
+
+using vl = vector<ll>;
+using vvl = vector<vl>;
+using vvvl = vector<vvl>;
+using vvvvl = vector<vvvl>;
+
+template<class v>
+auto operator<<(ostream &os, const vector<v> &vec)->ostream& {
+    os << vec[0];
+    for (size_t i = 1; i < vec.size(); i++) {
+        os << ' ' << vec[i];
+    }
+    os << '\n';
+    return os;
+}
+
+template<class v>
+auto operator>>(istream &is, vector<v> &vec)->istream& {
+    for (auto &i : vec) {
+        is >> i;
+    }
+    return is;
+}
+
+template<class v>
+auto operator<<(ostream &os, const vector<vector<v>> &vec)->ostream& {
+    for (auto &i : vec) {
+        os << i[0];
+        for (size_t j = 1; j < i.size(); j++) {
+            os << ' ' << i[j];
+        }
+        os << '\n';
+    }
+    return os;
+}
+
+template<class v>
+auto operator>>(istream  &is, vector<vector<v>> &vec)->istream& {
+    for (auto &i : vec) {
+        for (auto &j : i) {
+            is >> j;
+        }
+    }
+    return is;
+}
+
+int main()
+{
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int q;
+    cin >> q;
+    while (q--) {
+        double p, r, y;
+        cin >> p >> r >> y;
+
+        double low = -1.5;
+        double high = 1.5;
+
+        while (high - low >= 1e-10) {
+            double third = (high - low) / 3;
+            double mid1 = low + third;
+            double mid2 = high - third;
+
+            auto check = [&](double mid) {
+                double w = mid;
+                double s = (y - p - r) / 2 + w;
+                double n = r + s;
+                double e = p + w;
+
+                return max({abs(w), abs(s), abs(n), abs(e)});
+            };
+
+            if (check(mid1) < check(mid2)) {
+                high = mid1;
+                continue;
+            }
+
+            if (check(mid1) > check(mid2)) {
+                low = mid2;
+                continue;
+            }
+
+            low = mid1;
+            high = mid2;
+        }
+
+        double w = low;
+        double s = (y - p - r) / 2 + w;
+        double n = r + s;
+        double e = p + w;
+
+        cout << fixed << setprecision(6) << n << ' ' << e << ' ' << s << ' ' << w << '\n';
+    }
+}