제출 #1090348

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1090348		andrei_iorgulescu	Genetics (BOI18_genetics)	C++14	27 / 100	2048 ms	10068 KiB

genetics

#include <bits/stdc++.h>

using namespace std;

mt19937 rng(8962);

int n, m, k;
char a[4105][4105];
bitset<4105> bs[4105];

bool mna(int x, int y)
{
    int df = 0;
    for (int i = 1; i <= m; i++)
        if (a[x][i] != a[y][i])
            df++;
    if (df == k)
        return true;
    return false;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin >> n >> m >> k;
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= m; j++)
            cin >> a[i][j];
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= m; j++)
            if (a[i][j] == 'C')
                bs[i][j] = 1;
    vector<int> candi;
    for (int i = 1; i <= n; i++)
    {
        vector<int> alti;
        for (int j = 1; j <= n; j++)
            if (j != i)
                alti.push_back(j);
        shuffle(alti.begin(), alti.end(), default_random_engine(rng()));
        bool ok = true;
        int cate = 0;
        for (auto it : alti)
        {
            if (!mna(i, it))
            {
                ok = false;
                break;
            }
            cate++;
            if (cate == 300)
                break;
        }
        if (ok)
            candi.push_back(i);
    }
    vector<int> candi2;
    for (auto i : candi)
    {
        vector<int> alti;
        for (auto j : candi)
            if (j != i)
                alti.push_back(j);
        shuffle(alti.begin(), alti.end(), default_random_engine(rng()));
        bool ok = true;
        int cate = 0;
        for (auto it : alti)
        {
            if (!mna(i, it))
            {
                ok = false;
                break;
            }
        }
        if (ok)
            candi2.push_back(i);
    }
    if (candi2.size() == 1)
    {
        cout << candi2[0];
        return 0;
    }
    for (auto i : candi2)
    {
        vector<int> alti;
        for (int j = 1; j <= n; j++)
            if (j != i)
                alti.push_back(j);
        shuffle(alti.begin(), alti.end(), default_random_engine(rng()));
        bool ok = true;
        int cate = 0;
        for (auto it : alti)
        {
            if (!mna(i, it))
            {
                ok = false;
                break;
            }
        }
        if (ok)
        {
            cout << i;
            return 0;
        }
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

genetics.cpp: In function 'int main()':
genetics.cpp:68:13: warning: unused variable 'cate' [-Wunused-variable]
   68 |         int cate = 0;
      |             ^~~~
genetics.cpp:93:13: warning: unused variable 'cate' [-Wunused-variable]
   93 |         int cate = 0;
      |             ^~~~

• Subtask 1: 27 / 27
• Subtask 2: 0 / 19
• Subtask 3: 0 / 28
• Subtask 4: 0 / 26