Submission #657406

#	Time	Username	Problem	Language	Result	Execution time	Memory
657406		pls33	Cards (LMIO19_korteles)	C++17	0 / 100	440 ms	59184 KiB

korteles

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

using namespace std;
using namespace __gnu_pbds;

#pragma region dalykai
using p32 = pair<int, int>;
using p32u = pair<uint32_t, uint32_t>;
using p64 = pair<int64_t, int64_t>;
using p64u = pair<uint64_t, uint64_t>;
using vi16 = vector<int16_t>;
using vi16u = vector<uint16_t>;
using vi32 = vector<int>;
using vi32u = vector<uint32_t>;
using vi64 = vector<int64_t>;
using vi64u = vector<uint64_t>;
using vp32 = vector<p32>;
using vp32u = vector<p32u>;
using vp64 = vector<p64>;
using vp64u = vector<p64u>;
using vvi32 = vector<vi32>;
using vvi32u = vector<vi32u>;
using vvi64 = vector<vi64>;
using vvi64u = vector<vi64u>;
using vvp32 = vector<vp32>;
using vvp32u = vector<vp32u>;
using vvp64 = vector<vp64>;
using vvp64u = vector<vp64u>;

using pf32 = pair<float, float>;
using pf64 = pair<double, double>;
using pf80 = pair<long double, long double>;
using vf32 = vector<float>;
using vf64 = vector<double>;
using vf80 = vector<long double>;
using vpf32 = vector<pf32>;
using vpf64 = vector<pf64>;
using vpf80 = vector<pf80>;
using vvf32 = vector<vf32>;
using vvf64 = vector<vf64>;
using vvf80 = vector<vf80>;
using vvpf32 = vector<vpf32>;
using vvpf64 = vector<vpf64>;
using vvpf80 = vector<vpf80>;

template <typename key, typename val>
using ord_map = tree<key, val, less<key>, rb_tree_tag,
                     tree_order_statistics_node_update>;

template <typename key>
using ord_set = tree<key, null_type, less<key>, rb_tree_tag,
                     tree_order_statistics_node_update>;

const int BUF_SZ = 1 << 15;
inline namespace fast_in
{
    char buf[BUF_SZ];
    int pos;
    int len;

    char next_char(FILE *f)
    {
        if (pos == len)
        {
            pos = 0;
            len = (int)fread(buf, 1, BUF_SZ, f);

            if (!len)
            {
                return EOF;
            }
        }

        return buf[pos++];
    }

    int read_int(FILE *f)
    {
        int x;
        char ch;
        int sgn = 1;

        while (!isdigit(ch = next_char(f)))
        {
            if (ch == '-')
            {
                sgn *= -1;
            }
        }

        x = ch - '0';
        while (isdigit(ch = next_char(f)))
        {
            x = x * 10 + (ch - '0');
        }

        return x * sgn;
    }
}

/**
 * @brief gale programos flush_out kviest!!
 */
inline namespace fast_out
{
    char buf[BUF_SZ];
    int pos;

    void flush_out(FILE *f)
    {
        fwrite(buf, 1, pos, f);
        pos = 0;
    }

    void write_char(char c, FILE *f)
    {
        if (pos == BUF_SZ)
        {
            flush_out(f);
        }

        buf[pos++] = c;
    }

    void write_int(int x, FILE *f)
    {
        static char num_buf[100];

        if (x < 0)
        {
            write_char('-', f);
            x *= -1;
        }

        int len = 0;
        for (; x >= 10; x /= 10)
        {
            num_buf[len++] = (char)('0' + (x % 10));
        }

        write_char((char)('0' + x), f);
        while (len)
        {
            write_char(num_buf[--len], f);
        }
        write_char('\n', f);
    }
}
#pragma endregion

struct card_t
{
    string s1, s2;

    void fix()
    {
        s1[0] -= 'A';
        s1[1] -= 'A';

        s2[0] -= 'A';
        s2[1] -= 'A';
    }
};

using vvi16u = vector<vi16u>;

uint16_t compress(char a, char b, uint16_t dir)
{
    return uint16_t(uint16_t(a - 'A') * 1000 +
                    uint16_t(b - 'A') * 10 +
                    dir);
}

vi16u get_parts(card_t &card, bool opposite)
{
    vi16u opp = opposite ? vi16u{2, 3, 0, 1} : vi16u{0, 1, 2, 3};

    return {
        compress(card.s1[0], card.s1[1], opp[0]),
        compress(card.s1[1], card.s2[1], opp[1]),
        compress(card.s2[0], card.s2[1], opp[2]),
        compress(card.s1[0], card.s2[0], opp[3])};
}

int main()
{
#ifndef _AAAAAAAAA
    ios_base::sync_with_stdio(false);
    cin.tie(0);
#else
    freopen("cards.in", "r", stdin);
#ifndef __linux__
    atexit([]()
           {
        freopen("con", "r", stdin);
        system("pause"); });
#endif
#endif
    int n;
    cin >> n;

    map<uint16_t, set<uint16_t>> common;
    vector<card_t> cards(n);
    vvi16u parts(n);
    vi16u flat;
    for (int i = 0; i < n; i++)
    {
        cin >> cards[i].s1 >> cards[i].s2;

        parts[i] = get_parts(cards[i], false);

        for (size_t j = 0; j < parts[i].size(); j++)
        {
            flat.push_back(parts[i][j]);
            // for (size_t k = 0; k < parts[i].size(); k++)
            // {
            //     if (j == k)
            //     {
            //         continue;
            //     }

            //     common[parts[i][j]].insert(parts[i][k]);
            //     common[parts[i][k]].insert(parts[i][j]);
            // }
        }
    }

    map<uint16_t, int64_t> edge_count;
    for (auto &i : flat)
    {
        edge_count[i]++;
    }

    int64_t total = 0;
    for (size_t i = 0; i < cards.size(); i++)
    {
        auto &card = cards[i];
        auto &part = parts[i];
        auto opp = get_parts(card, true);

        for (auto &p : opp)
        {
            total += edge_count[p];
            total -= find(part.begin(), part.end(), p) != part.end();
        }
    }

    cout << total / 2 << '\n';

    return 0;
}

Compilation message (stderr)

korteles.cpp:8: warning: ignoring '#pragma region dalykai' [-Wunknown-pragmas]
    8 | #pragma region dalykai
      | 
korteles.cpp:151: warning: ignoring '#pragma endregion ' [-Wunknown-pragmas]
  151 | #pragma endregion
      |

• Subtask 1: 0 / 16
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 19
• Subtask 5: 0 / 25