Submission #870018

#	Time	Username	Problem	Language	Result	Execution time	Memory
870018		truongdoan2012	K blocks (IZhO14_blocks)	C++17	53 / 100	1035 ms	80988 KiB

blocks

#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "algo/debug.h"
#else
#define debug(...) 42
#endif

using i64 = long long;
const int N = 1e5 + 10;
i64 dp[N][101]; // min val khi chia i phan tu vao j nhom
i64 a[N], pm[N];

void solve() {
  int n, k;
  cin >> n >> k;
  for (int i = 1; i <= n; i++) {
    cin >> a[i];
    pm[i] = max(pm[i - 1], a[i]);
  }
  memset(dp, 127, sizeof dp);
  for (int i = 1; i <= n; i++) {
    dp[i][1] = pm[i];
  }
  for (int j = 2; j <= k; j++) {
    for (int i = j; i <= n; i++) {
      i64 t = a[i];
      for (int p = i; p >= 1; p--) {
        t = max(t, a[p]);
        dp[i][j] = min(dp[i][j], dp[p - 1][j - 1] + t);
      }
    }
  }
  cout << dp[n][k];
}

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int TC = 1;
  // cin >> TC;
  while (TC--) {
    solve();
  }
}

• Subtask 1: 14 / 14
• Subtask 2: 18 / 18
• Subtask 3: 21 / 21
• Subtask 4: 0 / 47