Submission #78027

#	Time	Username	Problem	Language	Result	Execution time	Memory
78027		xiaowuc1	Bali Sculptures (APIO15_sculpture)	C++14	0 / 100	2 ms	620 KiB

sculpture

#include <bits/stdc++.h>

/*
unsigned seed1 = std::chrono::system_clock::now().time_since_epoch().count();
mt19937 g1.seed(seed1);

ios_base::sync_with_stdio(false);
cin.tie(NULL);
*/
using namespace std;

const double PI = 2 * acos(0);

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef pair<int, ll> pill;
typedef pair<ll, ll> pll;
typedef long double ld;
typedef vector<vector<ll>> matrix;

ll pref[2001];

int n, a, b;
ll dp[2001];
ll nextDP[2001];

int main() {
  scanf("%d%d%d", &n, &a, &b);
  for(int i = 0; i < n; i++) {
    scanf("%lld", &pref[i+1]);
    pref[i+1] += pref[i];
    dp[i+1] = 1LL << 60;
  }
  ll ret = 1LL << 60;
  for(int x = 1; x <= b; x++) {
    for(int i = 0; i <= n; i++) {
      nextDP[i] = 1LL << 60;
    }
    for(int i = 0; i < n; i++) {
      for(int j = i+1; j <= n; j++) {
        nextDP[j] = min(nextDP[j], dp[i] | (pref[j] - pref[i]));
      }
    }
    memcpy(dp, nextDP, sizeof(dp));
    if(x >= a) {
      ret = min(ret, dp[n]);
    }
  }
  printf("%lld\n", ret);
}

Compilation message (stderr)

sculpture.cpp: In function 'int main()':
sculpture.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &n, &a, &b);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~
sculpture.cpp:31:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld", &pref[i+1]);
     ~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 21
• Subtask 4: 0 / 25
• Subtask 5: 0 / 29