Submission #699334

#	Time	Username	Problem	Language	Result	Execution time	Memory
699334		CatalinT	Bali Sculptures (APIO15_sculpture)	C++17	50 / 100	77 ms	364 KiB

sculpture

#include <vector>
#include <iostream>
#include <cassert>
#include <algorithm>
#include <numeric>
#include <iostream>
#include <set>
#include <map>
#include <string>
#include <unordered_map>
#include <functional>
#include <bitset>
#include <sstream>

using namespace std;

using int64 = long long;

int N, A, B;
vector<int> X;

int64 S;

bool can_do(int64 mask, int64 care) {
    vector<int> dp(N + 1, (1<<30));
    dp[0] = 0;

    for (int i = 1; i <= N; i++) {
        int64 cur = 0;
        int64 ored = 0;

        for (int j = i; j >= 1; j--) {
            cur += X[j];

            if (((cur & care) | mask) == mask) {
                if (dp[i] > dp[j-1] + 1) {
                    dp[i] = dp[j-1] + 1; 
                }    
            }
        }
    }

    return dp[N] <= B;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> N >> A >> B;
    X.resize(N + 1);

    for (int i = 1; i <= N; i++) {
        cin >> X[i];
        S += X[i];
    }

    const int max_bit = 42;

    int64 mask = 0;
    int64 care = 0;

    for (int i = max_bit; i >= 0; i--) {
        int64 bit = (1LL<<i);
        care |= bit;


        if (can_do(mask, care)) {
        } else {
            mask |= bit;
        }
    }

    cout << mask << "\n";

    return 0;
}

Compilation message (stderr)

sculpture.cpp: In function 'bool can_do(int64, int64)':
sculpture.cpp:30:15: warning: unused variable 'ored' [-Wunused-variable]
   30 |         int64 ored = 0;
      |               ^~~~

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