제출 #1349924

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1349924		the_commando_x	Bali Sculptures (APIO15_sculpture)	C++17	71 / 100	4 ms	464 KiB

sculpture

// #pragma GCC optimize("O3")
#include <bits/stdc++.h>

using namespace std;

using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;

using pii = pair<int, int>;
using vii = vector<pii>;
using vvii = vector<vii>;

using l = long long;
using vl = vector<l>;
using vvl = vector<vl>;
using vvvl = vector<vvl>;

using pll = pair<l, l>;
using vll = vector<pll>;
using vvll = vector<vll>;

using d = double;
using vd = vector<d>;
using vvd = vector<vd>;
using vvvd = vector<vvd>;

using ld = long double;
using vld = vector<ld>;
using vvld = vector<vld>;
using vvvld = vector<vvld>;

using vb = vector<bool>;
using vvb = vector<vb>;
using vvvb = vector<vvb>;
using pbb = pair<bool, bool>;
using vbb = vector<pbb>;

#define ff first
#define ss second

#define pb push_back
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define sz(x) (int)(x).size()

void setIO(string name = "")
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    if (!name.empty())
    {
        (void)freopen((name + ".in").c_str(), "r", stdin);
        (void)freopen((name + ".out").c_str(), "w", stdout);
    }
}

const ld pi = 3.14159265358979323846;

const l LINF = 1e18;
const l INF = 1e9;

const l MOD = 1e9 + 7;
// const l MOD = 998244353;

const l MAXN = 1e2 + 5;

int N, A, B;
vl Y(MAXN);
vl prefY(MAXN + 1);

bool canPartition(l mask)
{
    vvb dp(MAXN, vb(MAXN, false)); // * [pos][group]

    dp[0][0] = true;
    for (int g = 0; g <= B; ++g)
    {
        for (int i = 0; i < N; ++i)
        {
            if (!dp[i][g])
                continue;

            if (g == B)
                continue;

            for (int j = i; j < N; ++j)
                if (((prefY[j + 1] - prefY[i]) & mask) == 0)
                    dp[j + 1][g + 1] = true;
        }
    }

    for (int g = A; g <= B; ++g)
        if (dp[N][g])
            return true;

    return false;
}

void solve()
{
    cin >> N >> A >> B;
    for (int i = 0; i < N && cin >> Y[i]; ++i)
        prefY[i + 1] = prefY[i] + Y[i];

    l curMask = 0;
    for (int bit = 40; bit >= 0; --bit)
    {
        l nxtMask = curMask | (1LL << bit);

        if (canPartition(nxtMask))
            curMask = nxtMask;
    }

    l ans = ((1LL << 41) - 1) - curMask;
    cout << ans;
}

int main()
{
    setIO("");

#ifndef ONLINE_JUDGE
    // setIO("filename");
#endif

    int t = 1;
    // cin >> t;
    while (t--)
        solve();

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

sculpture.cpp: In function 'void setIO(std::string)':
sculpture.cpp:54:22: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   54 |         (void)freopen((name + ".in").c_str(), "r", stdin);
      |               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sculpture.cpp:55:22: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   55 |         (void)freopen((name + ".out").c_str(), "w", stdout);
      |               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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