Submission #1193328

#	Time	Username	Problem	Language	Result	Execution time	Memory
1193328		trvhung	Bali Sculptures (APIO15_sculpture)	C++17	100 / 100	54 ms	480 KiB

sculpture

#include <bits/stdc++.h>
// #include <ext/rope>
// #include <ext/pb_ds/assoc_container.hpp>

// using namespace __gnu_pbds;
// using namespace __gnu_cxx;
using namespace std;

// #define   ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define            ll long long
#define           ull unsigned long long
#define            ld long double
#define            pb push_back
#define  bit(mask, i) ((mask >> i) & 1)
#define            el '\n'
#define             F first
#define             S second

template <class X, class Y> bool maximize(X &x, const Y &y) { return (x < y ? x = y, 1 : 0); }
template <class X, class Y> bool minimize(X &x, const Y &y) { return (x > y ? x = y, 1 : 0); }

const int INF = 1e9;
const ll LINF = 1e18;
const int MOD = 1e9 + 7;
const int MULTI = 0;
const ld eps = 1e-9;
const int dx[4] = {0, 1, 0, -1}, dy[4] = {1, 0, -1, 0}; // R D L U
const int ddx[4] = {-1, 1, 1, -1}, ddy[4] = {1, 1, -1, -1}; // UR DR DL UL
const char cx[4] = {'R', 'D', 'L', 'U'};
const ll base = 31;
const int nMOD = 2;
const ll mods[] = {(ll)1e9 + 10777, (ll)1e9 + 19777, (ll)1e9 + 3, (ll)1e9 + 3777};

const int N = 2e3 + 5;
const int LOG = 40;
int n, a, b, y[N];
ll pref[N];

namespace four {
	const int N = 1e2 + 5;
	bool dp[N][N];

	void solve() {
		ll mask = 0, res = 0;
		for (int t = LOG; t >= 0; --t) {
			mask |= (1LL << t);
			memset(dp, 0, sizeof(dp));

			dp[0][0] = 1;
			for (int i = 1; i <= n; ++i)
				for (int j = 1; j <= n; ++j)
					for (int k = 0; k < i; ++k)
						if (((pref[i] - pref[k]) & mask) == 0)
							dp[i][j] |= dp[k][j - 1];

			bool c = 0;
			for (int i = a; i <= b; ++i)
				if (dp[n][i])
					c = 1;

			if (!c) mask ^= (1LL << t), res |= (1LL << t);
		}

		cout << res;
	}
}

namespace five {
	int dp[N];

	void solve() {
		ll mask = 0, res = 0;
		for (int t = LOG; t >= 0; --t) {
			mask |= (1LL << t);
			memset(dp, 0x3f, sizeof(dp));

			dp[0] = 0;
			for (int i = 1; i <= n; ++i)
				for (int j = 0; j < i; ++j)
					if (((pref[i] - pref[j]) & mask) == 0)
						minimize(dp[i], dp[j] + 1);

			if (dp[n] > b) mask ^= (1LL << t), res |= (1LL << t);
		}

		cout << res;
	}
}

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    cin >> n >> a >> b;
	for (int i = 1; i <= n; ++i)
		cin >> y[i];

	for (int i = 1; i <= n; ++i)
		pref[i] = pref[i - 1] + y[i];

	if (a != 1) return four::solve(), 0;
	five::solve();
    
    return 0;
}

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