Submission #878137

#	Time	Username	Problem	Language	Result	Execution time	Memory
878137		vjudge1	Genetics (BOI18_genetics)	C++17	46 / 100	2085 ms	40984 KiB

genetics

#include <bits/stdc++.h>
using namespace std;

#define ll long long 
#define pb push_back

#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2")

const int N = 4100 + 4;

int n, m, k;
bool done[N];
char s[N][N];
bitset<N> tmp, a[N], g[N], c[N], t[N];

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);

    bool AC = true;

    cin >> n >> m >> k;
    for (int i = 0; i < n; ++i) {
        cin >> s[i];
        for (int j = 0; j < m; ++j) {
            if (s[i][j] == 'A') {
                a[i][j] = true;
            }
            else if (s[i][j] == 'G') {
                g[i][j] = true;
            }
            else if (s[i][j] == 'C') {
                c[i][j] = true;
            }
            else if (s[i][j] == 'T') {
                t[i][j] = true;
            }
        }
    }

    for (int i = 0; i < n; ++i) {
        bool ok = true;
        for (int j = i + 1; j < n; ++j) {
            int cnt = 0;
            tmp = a[i] & a[j];
            cnt += tmp.count();
            tmp = g[i] & g[j];
            cnt += tmp.count();
            tmp = c[i] & c[j];
            cnt += tmp.count();
            tmp = t[i] & t[j];
            cnt += tmp.count();

            // cout << i + 1 << ' ' << j + 1 << ' ' << cnt << '\n';

            if (m - cnt != k) {
                ok = false;
                done[j] = true;
            }
        }
        if (ok == true && done[i] == false) {
            cout << i + 1;
            return 0;
        }
    }

    return 0;
}

Compilation message (stderr)

genetics.cpp: In function 'int main()':
genetics.cpp:21:10: warning: unused variable 'AC' [-Wunused-variable]
   21 |     bool AC = true;
      |          ^~

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