Submission #923537

#	Time	Username	Problem	Language	Result	Execution time	Memory
923537		andrei_iorgulescu	Bowling (BOI15_bow)	C++14	82 / 100	1016 ms	101464 KiB

bow

#include <bits/stdc++.h>

using namespace std;

#define int long long

int dp[11][301][11][11][32];
int n;
char a[25];
int v[15];
int f[11][11][11][11];

bool ok(int x,int pos,int prec)
{
    if (a[pos] == '?')
        return true;
    char cx;
    if (x == -1)
        cx = '-';
    else if (prec == -1)
    {
        if (x >= 0 and x <= 9)
            cx = (char)('0' + x);
        else
            cx = 'x';
    }
    else
    {
        if (x + prec < 10)
            cx = (char)('0' + x);
        else
            cx = '/';
    }
    if (cx == a[pos])
        return true;
    return false;
}

bool okv(int x,int pos)
{
    if (v[pos] == -1)
        return true;
    if (x == v[pos])
        return true;
    return false;
}

int F(int c11,int c12,int c21,int c22)
{
    if (c11 == 10)
    {
        if (c12 != c21)
            return 31;
        return 10 + c21 + c22;
    }
    if (c11 + c12 < 10)
        return c11 + c12;
    else if (c11 + c12 > 10)
        return 31;
    return 10 + c21;
}

void testcase()
{
    for (int i = 0; i < 11; i++)
        for (int ii = 0; ii < 11; ii++)
            for (int j = 0; j < 11; j++)
                for (int jj = 0; jj < 11; jj++)
                    f[i][ii][j][jj] = F(i,ii,j,jj);
    for (int i = 0; i < 11; i++)
        for (int j = 0; j < 301; j++)
            for (int ii = 0; ii < 11; ii++)
                for (int jj = 0; jj < 11; jj++)
                    for (int kkk = 0; kkk < 32; kkk++)
                        dp[i][j][ii][jj][kkk] = 0;
    cin >> n;
    for (int i = 1; i <= 2 * n + 1; i++)
        cin >> a[i];
    for (int i = 1; i <= n; i++)
        cin >> v[i];
    for (int s = 0; s <= 30 * n; s++)
    {
        for (int h1 = 0; h1 <= 10; h1++)
        {
            if (h1 == 10)
            {
                for (int h2 = 0; h2 <= 10; h2++)
                {
                    if (h2 == 10)
                    {
                        for (int h3 = 0; h3 <= 10; h3++)
                        {
                            if (h1 + h2 + h3 <= s and ok(h1,2 * n - 1,-1) and ok(h2,2 * n,-1) and ok(h3,2 * n + 1,-1) and okv(s,n))
                                dp[n][s][h1][h2][h1 + h2 + h3]++;
                        }
                    }
                    else
                    {
                        for (int h3 = 0; h3 <= 10 - h2; h3++)
                        {
                            if (h1 + h2 + h3 <= s and ok(h1,2 * n - 1,-1) and ok(h2,2 * n,-1) and ok(h3,2 * n + 1,h2) and okv(s,n))
                                dp[n][s][h1][h2][h1 + h2 + h3]++;
                        }
                    }
                }
            }
            else
            {
                for (int h2 = 0; h2 <= 10 - h1; h2++)
                {
                    if (h1 + h2 == 10 and ok(h1,2 * n - 1,-1) and ok(h2, 2 * n,h1))
                    {
                        for (int h3 = 0; h3 <= 10; h3++)
                        {
                            if (ok(h3,2 * n + 1,-1) and h1 + h2 + h3 <= s and okv(s,n))
                                dp[n][s][h1][h2][h1 + h2 + h3]++;
                        }
                    }
                    else if (h1 + h2 < 10)
                    {
                        if (h1 + h2 <= s and ok(h1,2 * n - 1,-1) and ok(h2,2 * n,h1) and ok(-1,2 * n + 1,-1) and okv(s,n))
                            dp[n][s][h1][h2][h1 + h2]++;
                    }
                }
            }
        }
    }
    for (int i = n; i > 1; i--)
    {
        for (int s = 0; s <= 30 * i; s++)
        {
            for (int h1 = 0; h1 <= 10; h1++)
            {
                for (int h2 = 0; h2 <= 10; h2++)
                {
                    for (int vl = 0; vl <= min(30ll,s); vl++)
                    {
                        if (dp[i][s][h1][h2][vl] == 0)
                            continue;
                        if (!okv(s - vl,i - 1))
                            continue;
                        //cout << i << ' ' << s << ' ' << h1 << ' ' << h2 << ' ' << vl << endl;
                        for (int h1p = 0; h1p <= 10; h1p++)
                        {
                            for (int h2p = 0; h2p <= 10; h2p++)
                            {
                                if (f[h1p][h2p][h1][h2] <= s - vl)
                                {
                                    if (h1p == 10 and ok(10,2 * i - 3,-1) and ok(-1,2 * i - 2,-1))
                                        dp[i - 1][s - vl][h1p][h2p][f[h1p][h2p][h1][h2]] += dp[i][s][h1][h2][vl];
                                    else if (h1p != 10)
                                    {
                                        if (h1p + h2p <= 10 and ok(h1p,2 * i - 3,-1) and ok(h2p,2 * i - 2,h1p))
                                            dp[i - 1][s - vl][h1p][h2p][f[h1p][h2p][h1][h2]] += dp[i][s][h1][h2][vl];
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    int ans = 0;
    for (int s = 0; s <= 30; s++)
    {
        for (int h1 = 0; h1 <= 10; h1++)
        {
            for (int h2 = 0; h2 <= 10; h2++)
            {
                //if (dp[1][s][h1][h2][s] != 0)
                  //  cout << s << ' ' << h1 << ' ' << h2 << ' ' << dp[1][s][h1][h2][s] << endl;
                ans += dp[1][s][h1][h2][s];
            }
        }
    }
    cout << ans << '\n';
}

signed main()
{
    int tc;
    cin >> tc;
    while (tc--)
        testcase();
    return 0;
}

/**
hoping for a miracle
**/

/*
1
2
?????
10 -1
*/

• Subtask 1: 16 / 16
• Subtask 2: 17 / 17
• Subtask 3: 26 / 26
• Subtask 4: 23 / 23
• Subtask 5: 0 / 18