Submission #364710

#	Time	Username	Problem	Language	Result	Execution time	Memory
364710		arayi	Bali Sculptures (APIO15_sculpture)	C++17	100 / 100	181 ms	876 KiB

sculpture

//Arayi
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <queue>
#include <stack>
#include <algorithm>
#include <math.h>
#include <vector>
#include <cstring>
#include <ctime>
#include <set>
#include <bitset>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <ctime>
#include <climits>
#include <cassert>
#include <chrono>
#include <random>
#include <complex>

#define fr first
#define sc second
#define MP make_pair
#define ad push_back
#define PB push_back
#define fastio ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define lli long long int
#define y1 arayikhalatyan
#define j1 jigglypuff
#define ld long double
#define itn int
#define pir pair<int, int> 
#define all(x) (x).begin(), (x).end()
#define str string
#define enl endl
#define en endl
#define cd complex<long double>
#define vcd vector<cd>
#define vii vector<int>
#define vlli vector<lli>
using namespace std;

lli gcd(lli a, lli b) { return (b == 0LL ? a : gcd(b, a % b)); }
ld dist(ld x, ld y1, ld x2, ld y2)
{
    return sqrt((x - x2) * (x - x2) + (y1 - y2) * (y1 - y2));
}
lli S(lli a)
{
    return (a * (a + 1LL)) / 2;
}
mt19937 rnd(363542);
char vow[] = { 'a', 'e', 'i', 'o', 'u' };
int dx[] = { 0, -1, 0, 1, -1, -1, 1, 1, 0 };
int dy[] = { -1, 0, 1, 0, -1, 1, -1, 1, 0 };


const int N = 1e6 + 30;
const lli mod = 1e9 + 7;
const ld pi = acos(-1);
const int T = 238;
const ld e = 1e-13;

lli bp(lli a, lli b = mod - 2LL)
{
    lli ret = 1;
    while (b)
    {
        if (b & 1) ret *= a, ret %= mod;
        a *= a;
        a %= mod;
        b >>= 1;
    }
    return ret;
}
ostream& operator<<(ostream& c, pir a)
{
    c << a.fr << " " << a.sc;
    return c;
}
struct pt
{
    lli x, y;
    int ind;
    int bl;
    bool operator==(const pt& a)
    {
        return ind == a.ind;
    }
    bool operator<(const pt& b)
    {
        if (x == b.x) return y < b.y;
        return x < b.x;
    }
};



int n, A, B;
lli a[N], dp[N], sm, ans;
bool check(lli sm)
{
    lli sum = 0;
    for (int i = 1; i <= n; i++) dp[i] = mod;
    for (int i = 1; i <= n; i++)
    {
        sum = 0;
        for (int j = i; j > 0; j--)
        {
            sum += a[j];
            if((sum & sm) == 0) dp[i] = min(dp[i], dp[j - 1] + 1);
        }
    }
    return dp[n] <= B;
}
lli dp1[2020][2020];
bool chk(lli sm)
{
    lli sum = 0;
    for (int i = 0; i <= n; i++)
        for (int j = 0; j <= n; j++)
            dp1[i][j] = mod;
    dp1[0][0] = 0;
    for (int i = 1; i <= n; i++)
    {
        for (int k = 1; k <= n; k++)
        {
            sum = 0;
            for (int j = i; j > 0; j--)
            {
                sum += a[j];
                if ((sum & sm) == 0) dp1[i][k] = min(dp1[i][k], dp1[j - 1][k - 1] + 1);
            }
        }
    }
    for (int i = A; i <= B; i++)
    {
        if (dp1[n][i] < mod) return 1;
    }
    return 0;
}
int main()
{
    fastio;
    cin >> n >> A >> B;
    for (int i = 1; i <= n; i++)
        cin >> a[i];
    if (A == 1)
    {
        for (int i = 50; i >= 0; i--)
        {
            if (check(sm + (1LL << i))) sm += (1LL << i);
            else ans += (1LL << i);
        }
        cout << ans << endl;
    }
    else
    {

        for (int i = 50; i >= 0; i--)
        {
            if (chk(sm + (1LL << i))) sm += (1LL << i);
            else ans += (1LL << i);
        }
        cout << ans << endl;
    }
    return 0;
}

/*

  __
*(><)*
  \/ /
  ||/
--||
  ||
  /\
 /  \
/    \

*/

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