oj.uz

답안 #154778

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
154778 2019-09-24T15:09:30 Z jacynkaa Bali Sculptures (APIO15_sculpture) C++14
50 / 100
 140 ms 23288 KB 
#include <bits/stdc++.h>
#include <math.h>
#include <chrono>
using namespace std;
#pragma GCC optimize("-O3")
#define endl "\n"
#define mp make_pair
#define st first
#define nd second
#define pii pair<int, int>
#define pb push_back
#define _upgrade ios_base::sync_with_stdio(0), cout.setf(ios::fixed), cout.precision(10) //cin.tie(0); cout.tie(0);
#define REP(i, n) for (int i = 0; i < (n); ++i)
#define FWD(i, a, b) for (int i = (a); i < (b); ++i)
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define fwd(i, a, b) for (int i = (a); i < (b); ++i)
#define all(c) (c).begin(), (c).end()
#define what(x) cerr << #x << " is " << x << endl;
#define int long long

const int MAXN = 2e3 + 10;
const int MAXK = 44; //UWAGA

unsigned int E[MAXN][MAXN];
int n, a, b;
int tab[MAXN];
pii dist[MAXN];
int shortest[MAXN];
bitset<MAXN> wszystkie[MAXN];

void mini(pii A, pii &B)
{
    B.st = min(B.st, A.st + 1);
    B.nd = max(B.nd, A.nd + 1);
}

bool solveHeura(int q) //czy wynik zawiera sie na inkluzje w q
{
    fill(dist, dist + MAXN, mp(100000, -100000));
    dist[0] = {0, 0};

    rep(i, n) for (int k = i + 1; k <= n; k++)
    {
        if ((E[i][k] | q) == q)
            mini(dist[i], dist[k]);
    }
    //bitset<64> D(q);
    //cerr << D << " " << dist[n].st << " " << dist[n].nd << endl;
    return (dist[n].st <= b && dist[n].nd >= a);
}

bool solveShortest(int q)
{
    fill(shortest, shortest + MAXN, 1e9);
    shortest[0] = 0;
    rep(i, n) for (int k = i + 1; k <= n; k++)
    {
        if ((E[i][k] | q) == q)
            shortest[k] = min(shortest[k], shortest[i] + 1);
    }
    //cerr << shortest[n] << endl;
    return shortest[n] <= b;
}

bool solveBitset(int q)
{
    rep(i, n + 1) wszystkie[i].reset();
    wszystkie[0][0] = true;
    rep(i, n) for (int k = i + 1; k <= n; k++)
    {
        if ((E[i][k] | q) == q)
            wszystkie[k] = (wszystkie[k] | (wszystkie[i] << 1));
    }
    for (int i = a; i <= b; i++)
        if (wszystkie[n][i])
            return true;
    return false;
}

void wzorShortest(int &wynik)
{
    for (int k = MAXK; k >= 0; k--)
        if (!solveShortest(wynik + (1ll << k) - 1))
            wynik += (1ll << k);
}

void wzorBitset(int &wynik)
{
    for (int k = MAXK; k >= 0; k--)
        if (!solveBitset(wynik + (1ll << k) - 1))
            wynik += (1ll << k);
}

void wzor(int &wynik)
{
    if (a == 1)
        wzorShortest(wynik);
    else
        wzorBitset(wynik);
}

void Heura1(int &wynik)
{
    for (int k = MAXK; k >= 0; k--)
        if (!solveHeura(wynik + (1ll << k) - 1))
            wynik += (1ll << k);
}
void Heura2(int &wynik)
{
    wzorShortest(wynik);
}

void slow(int &wynik)
{
    int x = accumulate(tab, tab + n, 0) + 2;
    rep(i, x) if ((a == 1) ? solveShortest(i) : solveBitset(i))
    {
        wynik = i;
        return;
    }
}

void brut(int &wynik)
{
    wynik = 1e18;
    rep(S, (1ll << (n - 1)))
    {
        int xoor = 0;
        vector<int> X(1, -1);
        rep(j, n - 1) if (S & (1ll << j)) X.pb(j);

        if (X.size() >= a && X.size() <= b)
        {
            X.push_back(n - 1);
            rep(j, X.size() - 1)
            {
                int suum = 0;
                for (int l = X[j] + 1; l <= X[j + 1]; l++)
                    suum += tab[l];
                xoor = xoor | suum;
            }
            wynik = min(wynik, xoor);
        }
    }
}

void pre()
{
    cin >> n >> a >> b;
    rep(i, n) cin >> tab[i];

    rep(i, n)
    {
        int val = tab[i];
        for (int k = i + 1; k <= n; k++)
        {
            E[i][k] = val;
            val += tab[k];
        }
    }
}

main()
{
    _upgrade;
    pre();
    int wynik = 0;
    Heura2(wynik);
    cout << wynik << endl;
}

Compilation message

sculpture.cpp: In function 'bool solveHeura(long long int)':
sculpture.cpp:44:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if ((E[i][k] | q) == q)
             ~~~~~~~~~~~~~~^~~~
sculpture.cpp: In function 'bool solveShortest(long long int)':
sculpture.cpp:58:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if ((E[i][k] | q) == q)
             ~~~~~~~~~~~~~~^~~~
sculpture.cpp: In function 'bool solveBitset(long long int)':
sculpture.cpp:71:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if ((E[i][k] | q) == q)
             ~~~~~~~~~~~~~~^~~~
sculpture.cpp: In function 'void brut(long long int&)':
sculpture.cpp:132:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if (X.size() >= a && X.size() <= b)
             ~~~~~~~~~^~~~
sculpture.cpp:132:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if (X.size() >= a && X.size() <= b)
                              ~~~~~~~~~^~~~
sculpture.cpp:15:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define rep(i, n) for (int i = 0; i < (n); ++i)
                                     ^
sculpture.cpp:135:13: note: in expansion of macro 'rep'
             rep(j, X.size() - 1)
             ^~~
sculpture.cpp: At global scope:
sculpture.cpp:163:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^

Subtask #1
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Incorrect 2 ms 424 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #2
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 424 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 380 KB Output is correct
15 Incorrect 2 ms 376 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 3 ms 504 KB Output is correct
19 Correct 2 ms 632 KB Output is correct
20 Correct 2 ms 504 KB Output is correct
21 Correct 2 ms 504 KB Output is correct
22 Correct 2 ms 632 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 2 ms 632 KB Output is correct
25 Correct 2 ms 632 KB Output is correct
26 Correct 3 ms 760 KB Output is correct
27 Correct 3 ms 760 KB Output is correct
28 Correct 3 ms 892 KB Output is correct
29 Correct 3 ms 760 KB Output is correct
30 Correct 3 ms 888 KB Output is correct
31 Correct 3 ms 760 KB Output is correct
32 Correct 3 ms 760 KB Output is correct

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 424 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 508 KB Output is correct
11 Correct 3 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Incorrect 2 ms 376 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #5
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 388 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 504 KB Output is correct
21 Correct 2 ms 504 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 3 ms 376 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 504 KB Output is correct
27 Correct 2 ms 504 KB Output is correct
28 Correct 2 ms 632 KB Output is correct
29 Correct 2 ms 504 KB Output is correct
30 Correct 3 ms 632 KB Output is correct
31 Correct 3 ms 504 KB Output is correct
32 Correct 2 ms 504 KB Output is correct
33 Correct 3 ms 504 KB Output is correct
34 Correct 2 ms 632 KB Output is correct
35 Correct 2 ms 636 KB Output is correct
36 Correct 3 ms 632 KB Output is correct
37 Correct 3 ms 760 KB Output is correct
38 Correct 3 ms 760 KB Output is correct
39 Correct 3 ms 888 KB Output is correct
40 Correct 3 ms 760 KB Output is correct
41 Correct 3 ms 888 KB Output is correct
42 Correct 3 ms 892 KB Output is correct
43 Correct 3 ms 632 KB Output is correct
44 Correct 2 ms 632 KB Output is correct
45 Correct 3 ms 760 KB Output is correct
46 Correct 3 ms 764 KB Output is correct
47 Correct 3 ms 760 KB Output is correct
48 Correct 3 ms 888 KB Output is correct
49 Correct 3 ms 760 KB Output is correct
50 Correct 3 ms 888 KB Output is correct
51 Correct 3 ms 760 KB Output is correct
52 Correct 14 ms 3960 KB Output is correct
53 Correct 20 ms 5496 KB Output is correct
54 Correct 36 ms 8352 KB Output is correct
55 Correct 34 ms 8312 KB Output is correct
56 Correct 138 ms 23160 KB Output is correct
57 Correct 133 ms 23288 KB Output is correct
58 Correct 136 ms 23032 KB Output is correct
59 Correct 133 ms 23288 KB Output is correct
60 Correct 140 ms 23288 KB Output is correct
61 Correct 4 ms 888 KB Output is correct
62 Correct 21 ms 5624 KB Output is correct
63 Correct 36 ms 8312 KB Output is correct
64 Correct 33 ms 8312 KB Output is correct
65 Correct 61 ms 13816 KB Output is correct
66 Correct 107 ms 19128 KB Output is correct
67 Correct 138 ms 23160 KB Output is correct
68 Correct 140 ms 23032 KB Output is correct
69 Correct 134 ms 23160 KB Output is correct