oj.uz

Submission #249353

# Submission time Handle Problem Language Result Execution time Memory
249353 2020-07-14T16:37:06 Z SamAnd Koala Game (APIO17_koala) C++17
63 / 100
 75 ms 1500 KB 
#include "koala.h"
#include <bits/stdc++.h>
using namespace std;
#define m_p make_pair
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define fi first
#define se second
const int N = 102;

int n, w;

int minValue(int N, int W)
{
    // TODO: Implement Subtask 1 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    n = N;
    w = W;

    int* a;
    a = new int[n];
    for (int i = 0; i < n; ++i)
        a[i] = 0;

    a[0] = 1;

    int* b = new int[n];
    playRound(a, b);

    for (int i = 0; i < n; ++i)
    {
        if (b[i] == 0)
            return i;
    }
    return 0;
}

int maxValue(int N, int W)
{
    // TODO: Implement Subtask 2 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    n = N;
    w = W;

    vector<int> v;
    for (int i = 0; i < n; ++i)
        v.push_back(i);

    while (1)
    {
        if (sz(v) == 1)
            return v[0];

        int* a;
        a = new int[n];
        for (int i = 0; i < n; ++i)
            a[i] = 0;

        for (int i = 0; i < v.size(); ++i)
        {
            a[v[i]] = W / sz(v);
        }

        int* b;
        b = new int[n];
        playRound(a, b);

        vector<int> nv;
        for (int i = 0; i < v.size(); ++i)
        {
            if (b[v[i]] > a[v[i]])
                nv.push_back(v[i]);
        }
        v = nv;
    }
    return 0;
}

bool c[N];
vector<int> g[N];

bool dfs(int x, int y)
{
    if (c[x])
        return false;
    c[x] = true;
    if (x == y)
        return true;
    for (int i = 0; i < g[x].size(); ++i)
    {
        int h = g[x][i];
        if (dfs(h, y))
            return true;
    }
    return false;
}

bool so(int i, int j)
{
    if (i == j)
        return false;

    memset(c, false, sizeof c);
    if (dfs(i, j))
        return false;
    memset(c, false, sizeof c);
    if (dfs(j, i))
        return true;

    int l = 1;
    int r = 14;

    while (1)
    {
        int m = (l + r) / 2;

        int* a;
        a = new int[n];
        for (int i = 0; i < n; ++i)
            a[i] = 0;
        a[i] = a[j] = m;

        if (m * 2 > w)
        {
            r = m - 1;
            continue;
        }

        int* b;
        b = new int[n];
        playRound(a, b);

        if (b[i] > a[i] && b[j] <= a[j])
        {
            g[i].push_back(j);
            return false;
        }
        if (b[i] <= a[i] && b[j] > a[j])
        {
            g[j].push_back(i);
            return true;
        }

        if (b[i] <= a[i])
            r = m - 1;
        else
            l = m + 1;
    }
    assert(false);
}

int greaterValue(int N, int W)
{
    // TODO: Implement Subtask 3 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    for (int i = 0; i < n; ++i)
        g[i].clear();
    n = N;
    w = W;

    if (so(0, 1))
        return 1;
    return 0;
}

void allValues(int N, int W, int *P)
{
    for (int i = 0; i < n; ++i)
        g[i].clear();
    n = N;
    w = W;

    int* a;
    a = new int[n];
    for (int i = 0; i < n; ++i)
        a[i] = i;
    sort(a, a + n, so);
    for (int i = 0; i < n; ++i)
        P[a[i]] = i + 1;

    if (W == 2 * N)
    {
        // TODO: Implement Subtask 4 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
    }
    else
    {
        // TODO: Implement Subtask 5 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
    }
}

Compilation message

koala.cpp: In function 'int maxValue(int, int)':
koala.cpp:61:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 0; i < v.size(); ++i)
                         ~~^~~~~~~~~~
koala.cpp:71:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 0; i < v.size(); ++i)
                         ~~^~~~~~~~~~
koala.cpp: In function 'bool dfs(int, int)':
koala.cpp:91:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < g[x].size(); ++i)
                     ~~^~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 6 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 640 KB Output is correct
2 Correct 18 ms 640 KB Output is correct
3 Correct 18 ms 640 KB Output is correct
4 Correct 17 ms 640 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 1240 KB Output is correct
2 Correct 75 ms 1500 KB Output is correct
3 Correct 61 ms 1240 KB Output is correct
4 Correct 62 ms 1256 KB Output is correct
5 Correct 61 ms 1240 KB Output is correct
6 Correct 67 ms 1240 KB Output is correct
7 Correct 59 ms 1240 KB Output is correct
8 Correct 59 ms 1240 KB Output is correct
9 Correct 63 ms 1368 KB Output is correct
10 Correct 64 ms 1240 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 57 ms 888 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
26.0 / 53.0

# Verdict Execution time Memory Grader output
1 Partially correct 26 ms 888 KB Output is partially correct
2 Partially correct 34 ms 1016 KB Output is partially correct
3 Partially correct 32 ms 1016 KB Output is partially correct
4 Partially correct 32 ms 892 KB Output is partially correct
5 Partially correct 38 ms 1016 KB Output is partially correct
6 Partially correct 31 ms 1016 KB Output is partially correct
7 Partially correct 36 ms 1024 KB Output is partially correct
8 Partially correct 35 ms 1020 KB Output is partially correct
9 Partially correct 32 ms 1016 KB Output is partially correct
10 Partially correct 29 ms 888 KB Output is partially correct
11 Partially correct 34 ms 888 KB Output is partially correct
12 Partially correct 19 ms 768 KB Output is partially correct
13 Partially correct 33 ms 1016 KB Output is partially correct
14 Partially correct 31 ms 888 KB Output is partially correct
15 Partially correct 32 ms 1016 KB Output is partially correct
16 Partially correct 33 ms 1016 KB Output is partially correct
17 Partially correct 47 ms 1144 KB Output is partially correct
18 Partially correct 37 ms 1016 KB Output is partially correct
19 Partially correct 31 ms 888 KB Output is partially correct
20 Partially correct 33 ms 1016 KB Output is partially correct
21 Partially correct 31 ms 888 KB Output is partially correct
22 Partially correct 34 ms 1016 KB Output is partially correct
23 Partially correct 25 ms 896 KB Output is partially correct
24 Partially correct 38 ms 1016 KB Output is partially correct
25 Partially correct 33 ms 1020 KB Output is partially correct
26 Partially correct 36 ms 1016 KB Output is partially correct
27 Partially correct 32 ms 1016 KB Output is partially correct
28 Partially correct 34 ms 1024 KB Output is partially correct
29 Partially correct 33 ms 1016 KB Output is partially correct
30 Partially correct 34 ms 1016 KB Output is partially correct
31 Partially correct 31 ms 996 KB Output is partially correct
32 Partially correct 33 ms 1020 KB Output is partially correct
33 Partially correct 33 ms 1016 KB Output is partially correct
34 Partially correct 25 ms 888 KB Output is partially correct
35 Partially correct 32 ms 1024 KB Output is partially correct
36 Partially correct 30 ms 896 KB Output is partially correct
37 Partially correct 35 ms 1040 KB Output is partially correct
38 Partially correct 33 ms 1016 KB Output is partially correct
39 Partially correct 32 ms 896 KB Output is partially correct
40 Partially correct 32 ms 928 KB Output is partially correct