제출 #1035181

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1035181		May27_th	Financial Report (JOI21_financial)	C++17	0 / 100	4091 ms	4700 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define i64 long long
#define mp make_pair
#define pb push_back
#define all(x) (x).begin(), (x).end()
const int INF = 1e9;
void Maximize(pair<int, int> &a, pair<int, int> b) {
  if (a.first < b.first) a = b;
  else if (a.first == b.first) a.second = min(a.second, b.second);
}
void Solve(void) {
  int N, D; cin >> N >> D;
  vector<int> a(N + 1);
  for (int i = 1; i <= N; i ++) cin >> a[i];
  int ans = 0;
  for (int st = 1; st <= N; st ++) {
    vector<pair<int, int>> lis;
    for (int i = st; i <= N; i ++) {
      if (lis.empty()) lis.pb(mp(a[i], i));
      else {
        auto it = lower_bound(all(lis), mp(a[i], 0));
        if (it == lis.end()) {
          it --;
          if ((*it).second + D >= i) lis.pb(mp(a[i], i));
        } else {
          if (it == lis.begin()) {
            (*it) = mp(a[i], i);
          } else {
            auto prev = it; prev --;
            if ((*prev).second + D >= i) (*it) = mp(a[i], i);
            else {
              (*it).second = i;
            }
          }
        }
      }
      // cout << i << " " << (int)lis.size() << "\n";
      // for (auto [x, id] : lis) {
      //   cout << "(" << x << "," << id << ")" << "\n";
      // }
    }
    ans = max(ans, (int)lis.size());
  }
  cout << ans << "\n";
}
signed main() {
  ios_base::sync_with_stdio(false); cin.tie(0);
  cout << fixed << setprecision(10);
  int Tests = 1; // cin >> Tests;
  while (Tests --) {
    Solve();
  }
}

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