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Submission #778951

# Submission time Handle Problem Language Result Execution time Memory
778951 2023-07-11T05:06:27 Z 이성호(#10001) PIN (CEOI10_pin) C++17
100 / 100
 29 ms 15100 KB 
#include <iostream>
#define int long long
using namespace std;
int cnt[37][37][37][37];
//�� ���ڿ� �ڿ����� ��������� �� digit, 0�̸� ��ü
int conv(char c)
{
    if ('0' <= c && c <= '9') return c - '0' + 1;
    else return c - 'a' + 11; //[1, 36]
}
signed main()
{
    int N, D; cin >> N >> D;
    for (int i = 1; i <= N; i++) {
        char s[4]; cin >> s;
        cnt[conv(s[0])][conv(s[1])][conv(s[2])][conv(s[3])]++;
    }
    for (int i = 36; i >= 0; i--) {
        for (int j = 36; j >= 0; j--) {
            for (int k = 36; k >= 0; k--) {
                for (int l = (i && j && k) ? 0 : 36; l >= 0; l--) {
                    if (i == 0) {
                        for (int p = 1; p <= 36; p++) cnt[i][j][k][l] += cnt[p][j][k][l];
                    }
                    else if (j == 0) {
                        for (int p = 1; p <= 36; p++) cnt[i][j][k][l] += cnt[i][p][k][l];
                    }
                    else if (k == 0) {
                        for (int p = 1; p <= 36; p++) cnt[i][j][k][l] += cnt[i][j][p][l];
                    }
                    else if (l == 0) {
                        for (int p = 1; p <= 36; p++) cnt[i][j][k][l] += cnt[i][j][k][p];
                    }
                }
            }
        }
    }
    int ans[5] = {}; //���� ���� �� ���� (���� ����)
    for (int i = 1; i <= 36; i++) {
        for (int j = 1; j <= 36; j++) {
            for (int k = 1; k <= 36; k++) {
                for (int l = 1; l <= 36; l++) {
                    ans[0] += cnt[i][j][k][l] * cnt[i][j][k][l];
                }
            }
        }
    }
    //ans[1]: 1������ �ٸ� �� ����
    for (int i = 1; i <= 36; i++) {
        for (int j = 1; j <= 36; j++) {
            for (int k = 1; k <= 36; k++) {
                for (int l = 1; l <= 36; l++) {
                    if (!cnt[i][j][k][l]) continue;
                    ans[1] += cnt[i][j][k][l] * (cnt[0][j][k][l] + cnt[i][0][k][l] + cnt[i][j][0][l] + cnt[i][j][k][0]);
                }
            }
        }
    }
    ans[1] -= 4 * ans[0];
    for (int i = 1; i <= 36; i++) {
        for (int j = 1; j <= 36; j++) {
            for (int k = 1; k <= 36; k++) {
                for (int l = 1; l <= 36; l++) {
                    if (!cnt[i][j][k][l]) continue;
                    ans[2] += cnt[i][j][k][l] * (cnt[0][0][k][l] + cnt[0][j][0][l] + cnt[0][j][k][0] + cnt[i][0][0][l] + cnt[i][0][k][0] + cnt[i][j][0][0]);
                }
            }
        }
    }
    ans[2] -= (6 * ans[0] + 3 * ans[1]);
    for (int i = 1; i <= 36; i++) {
        for (int j = 1; j <= 36; j++) {
            for (int k = 1; k <= 36; k++) {
                for (int l = 1; l <= 36; l++) {
                    if (!cnt[i][j][k][l]) continue;
                    ans[3] += cnt[i][j][k][l] * (cnt[0][0][0][l] + cnt[0][0][k][0] + cnt[0][j][0][0] + cnt[i][0][0][0]);
                }
            }
        }
    }
    ans[3] -= (4 * ans[0] + 3 * ans[1] + 2 * ans[2]);
    ans[4] = N * N - ans[0] - ans[1] - ans[2] - ans[3];
    cout << ans[D] / 2 << '\n';
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 14932 KB Output is correct
2 Correct 21 ms 14860 KB Output is correct
3 Correct 27 ms 14932 KB Output is correct
4 Correct 21 ms 15048 KB Output is correct
5 Correct 22 ms 15036 KB Output is correct
6 Correct 23 ms 15060 KB Output is correct
7 Correct 27 ms 14964 KB Output is correct
8 Correct 23 ms 15060 KB Output is correct
9 Correct 27 ms 15012 KB Output is correct
10 Correct 27 ms 15020 KB Output is correct
11 Correct 24 ms 14980 KB Output is correct
12 Correct 24 ms 15100 KB Output is correct
13 Correct 23 ms 15048 KB Output is correct
14 Correct 29 ms 15048 KB Output is correct
15 Correct 26 ms 15096 KB Output is correct
16 Correct 23 ms 15020 KB Output is correct
17 Correct 28 ms 15072 KB Output is correct
18 Correct 28 ms 15100 KB Output is correct
19 Correct 28 ms 15060 KB Output is correct
20 Correct 28 ms 15084 KB Output is correct