제출 #1035078

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1035078		May27_th	Financial Report (JOI21_financial)	C++17	0 / 100	4051 ms	7000 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);
  vector<pair<int, int>> f(N + 1);
  for (int i = 1; i <= N; i ++) cin >> a[i];
  int ans = 1;
  for (int st = 1; st <= N; st ++) { 
    f[st] = mp(1, a[st]);
    for (int i = st + 1; i <= N; i ++) {
      f[i] = mp(-INF, INF);
      for (int j = i - 1; j >= max(st, i - D); j --) {
        if (f[j].first == -INF || a[i] < f[j].second) continue;
        pair<int, int> cur = mp(f[j].first + (a[i] > f[j].second), max(a[i], f[j].second));
        Maximize(f[i], cur);
      }
      // cout << i << " " << f[i].first << " " << f[i].second << "\n";
      ans = max(ans, f[i].first);
    }
    // cout << st << " " << ans << "\n";
  }
  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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