제출 #1112375

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1112375		JelalTkm	Bigger segments (IZhO19_segments)	C++17	27 / 100	1562 ms	70984 KiB

segments

#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")

using namespace std;

#define int long long int

const int N = 3e5 + 10;
const int md = 1e9 + 7;
const int INF = 1e18;

int32_t main(int32_t argc, char *argv[]) {

  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int T = 1;
  // cin >> T;
  while (T--) {
    int n;
    cin >> n;
    vector<int> a(n + 1), pref(n + 1);
    for (int i = 1; i <= n; i++) {
      cin >> a[i];
      pref[i] = pref[i - 1] + a[i];
    }

    vector<vector<int>> dp(n + 1, vector<int> (n + 1, INF));
    dp[0][0] = 0;
    int ans = 1;
    for (int i = 1; i <= n; i++) {
      dp[i][1] = pref[i];
      for (int j = 2; j <= i; j++) {
        for (int k = i - 1; k >= 1; k--) {
          if (dp[k][j - 1] <= pref[i] - pref[k]) {
            dp[i][j] = pref[i] - pref[k];
            break;
          }
        }

        if (i == n && dp[i][j] != INF)
          ans = max(ans, j);
      }
    }

    cout << ans << '\n';
  }

  return 0;
}

• Subtask 1: 13 / 13
• Subtask 2: 14 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27