Add more problems

2026-02-14 12:32:06 -03:00
parent 05414bf7f7
commit eccccddcc8
16 changed files with 2414 additions and 0 deletions
--- a/Version).cpp
+++ b/Version).cpp
@@ -0,0 +1,190 @@
+/* Problem URL: https://codeforces.com/problemset/problem/2129/C1 */
+
+#include <bits/stdc++.h>
+#include <ext/pb_ds/assoc_container.hpp>
+#include <ext/pb_ds/tree_policy.hpp>
+
+using namespace std;
+using namespace __gnu_pbds;
+
+template <class T, class comp = less<>>
+using ordered_set = tree<T, null_type , comp , rb_tree_tag , tree_order_statistics_node_update>;
+
+#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;
+}
+
+const int oo = INT32_MAX >> 1;
+const ll OO = INT64_MAX >> 1;
+
+
+void pre()
+{
+
+}
+
+#define TEST 1
+
+void solve()
+{
+    int n;
+    cin >> n;
+
+    string ans(n, ' ');
+
+    vi pos(n);
+    rep(i, n) {
+        pos[i] = i + 1;
+    }
+    bool rev = false;
+
+    int total;
+    cout << "? " << n;
+    nrep(i, 1, n + 1) {
+        cout << ' ' << i;
+    }
+    cout << endl;
+    cin >> total;
+
+    if (total == 0) {
+        rev = true;
+        reverse(all(pos));
+        cout << "? " << n;
+        rep(i, n) {
+            cout << ' ' << pos[i];
+        }
+        cout << endl;
+        cin >> total;
+    }
+
+    auto sfirstclose = [&]() {
+        int low = 2;
+        int high = n;
+        int ans = 2;
+        while (low <= high) {
+            int mid = (low + high) >> 1;
+
+            cout << "? " << mid;
+            rep(i, mid) {
+                cout << ' ' << pos[i];
+            }
+            cout << endl;
+            int cur;
+            cin >> cur;
+
+            if (cur == total) {
+                ans = mid;
+                high = mid - 1;
+                continue;
+            }
+
+            low = mid + 1;
+        }
+
+        return ans;
+    };
+
+    int c = sfirstclose();
+
+    int v = pos[c -  1];
+    for (int i = 0; i + 1 < n; i += 2)  {
+        cout << "? 9 " << i + 1 << ' ' << v << ' '  << v << ' ' << i + 2 << ' ' <<  v << ' ' <<  i + 1 << ' ' << i + 1 << ' ' << i + 2 << ' ' << i + 2 << endl;
+        int cur;
+        cin >> cur;
+
+        char a1[] = {')', ')', '(', '('};
+        char a2[] = {')', '(', '(', ')'};
+
+        ans[i] = a1[cur];
+        ans[i + 1] = a2[cur];
+    }
+
+    if (n & 1) {
+        cout << "? 2 " << n << ' ' << pos[c - 1] << endl;
+        int cur;
+        cin >> cur;
+
+        if (cur == 1) {
+            ans.back() = '(';
+        } else {
+            ans.back() = ')';
+        }
+    }
+
+    cout << "! " << ans << endl;
+}
+
+int main()
+{
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    pre();
+
+    int t;
+    (TEST && cin >> t) || (t = 1);
+    while (t--) {
+        solve();
+    }
+}