Submission #853678

#	Time	Username	Problem	Language	Result	Execution time	Memory
853678		NeroZein	Bali Sculptures (APIO15_sculpture)	C++17	100 / 100	149 ms	600 KiB

sculpture

#include "bits/stdc++.h"
using namespace std;

#ifdef Nero
#include "Deb.h"
#else
#define deb(...)
#endif

signed main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n, u, b;
  cin >> n >> u >> b;
  vector<int> a(n + 1); 
  vector<long long> pref(n + 1); 
  for (int i = 1; i <= n; ++i) {
    cin >> a[i]; 
    pref[i] = pref[i - 1] + a[i];
  }
  long long d = 0;
  long long ans = 0;
  if (u == 1) {
    for (int bit = 60; bit >= 0; --bit) {
      d |= 1LL << bit; 
      vector<int> dp(n + 1, b + 1); 
      dp[0] = 0; 
      for (int i = 1; i <= n; ++i) {
        for (int j = i - 1; j >= 0; --j) {
          long long sum = pref[i] - pref[j]; 
          if ((sum & d) == 0) {
            dp[i] = min(dp[i], dp[j] + 1); 
          }
        }
      }
      if (dp[n] > b) {
        d ^= 1LL << bit;
        ans |= 1LL << bit;
      }
    }
    cout << ans << '\n';
  } else {
    for (int bit = 60; bit >= 0; --bit) {
      d |= 1LL << bit; 
      vector<vector<int>> dp(n + 1, vector<int> (b + 1));
      dp[0][0] = true;
      for (int i = 1; i <= n; ++i) {
        for (int j = i - 1; j >= 0; --j) {
          for (int k = 0; k <= j; ++k) {
            long long sum = pref[i] - pref[j];
            if (k + 1 <= b && (sum & d) == 0) {
              dp[i][k + 1] |= dp[j][k]; 
            }
          }
        }
      }
      bool f = false;
      for (int i = u; i <= b; ++i) {
        f |= dp[n][i];
      }
      if (!f) {
        d ^= 1LL << bit;
        ans |= 1LL << bit;
      }
    }
    cout << ans << '\n';
  }
  return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 16 / 16
• Subtask 3: 21 / 21
• Subtask 4: 25 / 25
• Subtask 5: 29 / 29