173 lines
3.3 KiB
C++
173 lines
3.3 KiB
C++
/* Problem URL: https://codeforces.com/problemset/problem/2128/E1 */
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#include <bits/stdc++.h>
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#include <ext/pb_ds/assoc_container.hpp>
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#include <ext/pb_ds/tree_policy.hpp>
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using namespace std;
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using namespace __gnu_pbds;
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template <class T, class comp = less<>>
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using ordered_set = tree<T, null_type , comp , rb_tree_tag , tree_order_statistics_node_update>;
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#define V vector
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#define rmin(a, b) a = min(a, b)
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#define rmax(a, b) a = max(a, b)
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#define rep(i, lim) for (int i = 0; i < (lim); i++)
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#define nrep(i, s, lim) for (int i = s; i < (lim); i++)
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#define repv(i, v) for (auto &i : (v))
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#define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; }
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#define sortv(v) sort(v.begin(), v.end())
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#define all(v) (v).begin(), (v).end()
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using vi = vector<int>;
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using vvi = vector<vi>;
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using vvvi = vector<vvi>;
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using vvvvi = vector<vvvi>;
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using ll = long long;
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using vl = vector<ll>;
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using vvl = vector<vl>;
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using vvvl = vector<vvl>;
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using vvvvl = vector<vvvl>;
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template<class v>
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auto operator<<(ostream &os, const vector<v> &vec)->ostream& {
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os << vec[0];
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for (size_t i = 1; i < vec.size(); i++) {
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os << ' ' << vec[i];
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}
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os << '\n';
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return os;
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}
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template<class v>
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auto operator>>(istream &is, vector<v> &vec)->istream& {
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for (auto &i : vec) {
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is >> i;
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}
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return is;
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}
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template<class v>
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auto operator<<(ostream &os, const vector<vector<v>> &vec)->ostream& {
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for (auto &i : vec) {
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os << i[0];
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for (size_t j = 1; j < i.size(); j++) {
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os << ' ' << i[j];
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}
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os << '\n';
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}
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return os;
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}
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template<class v>
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auto operator>>(istream &is, vector<vector<v>> &vec)->istream& {
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for (auto &i : vec) {
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for (auto &j : i) {
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is >> j;
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}
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}
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return is;
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}
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const int oo = INT32_MAX >> 1;
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const ll OO = INT64_MAX >> 1;
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void pre()
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{
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}
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#define TEST 1
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void solve()
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{
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ordered_set<pair<int, int>> ord;
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int n, k;
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cin >> n >> k;
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vi p(n);
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cin >> p;
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int ans = -1;
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int al = -1;
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int ar = -1;
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auto getans = [&](int l, int r, int med) {
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if (med > ans) {
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ans = med;
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al = l;
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ar = r;
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}
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};
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int low = 1;
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int high = n;
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while (low <= high) {
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int mid = (low + high) >> 1;
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vi big(n);
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rep(i, n) {
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big[i] = (p[i] >= mid) - (p[i] < mid);
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}
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vl sum(n + 1);
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nrep(i, 1, k + 1) {
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sum[i] = sum[i - 1] + big[i - 1];
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}
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int tl = 1;
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int ttl = 1;
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int tr = k;
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ll cur = sum[k];
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ll act = cur;
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ll mi = 0;
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nrep(i, k + 1, n + 1) {
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cur += big[i - 1];
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if (mi > sum[i - k]) {
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mi = sum[i - k];
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tl = i - k + 1;
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}
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if (act < cur - mi) {
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act = cur - mi;
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tr = i;
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ttl = tl;
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}
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sum[i] = cur;
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}
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if (act >= 0) {
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ans = mid;
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al = ttl;
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ar = tr;
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low = mid + 1;
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continue;
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}
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high = mid - 1;
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}
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cout << ans << ' ' << al << ' ' << ar << '\n';
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}
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int main()
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{
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ios::sync_with_stdio(false);
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cin.tie(nullptr);
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pre();
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int t;
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(TEST && cin >> t) || (t = 1);
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while (t--) {
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solve();
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}
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}
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