Submission #232524

#	Time	Username	Problem	Language	Result	Execution time	Memory
232524		NONAME	Parametriziran (COCI19_parametriziran)	C++17	110 / 110	1559 ms	5752 KiB

Main

#include <bits/stdc++.h>
#define sz(x) int(x.size())
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#define N 100500
#define oo ll(1e16)
#define ft first
#define sd second
#define mp make_pair
#define pb push_back
#define ppb pop_back
#define el '\n'
#define elf endl
#define base ll(1e9 + 7)
using namespace std;
typedef long long ll;
typedef long double ld;

int n, m;
ll ans;
string s[N];
vector <int> v[128];

ll f(int x, int y) {
    map <string, ll> ma;

    ll rs = 0;

    for (int i = 0; i < sz(v[x]); i++) {
        string t = "";

        for (int j = 0; j < m; j++)
            if (((1 << j) & x) && ((1 << j) & y))
                t += s[v[x][i]][j];

        ma[t]++;
    }

    for (int i = 0; i < sz(v[y]); i++) {
        string t = "";

        for (int j = 0; j < m; j++)
            if (((1 << j) & x) && ((1 << j) & y))
                t += s[v[y][i]][j];

        rs += ma[t];
    }

    return rs;
}

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

//    in("input.txt");

    cin >> n >> m;
    for (int i = 0; i < n; i++) {
        cin >> s[i];

        int msk = 0;

        for (int j = 0; j < m; j++)
            if (s[i][j] != '?')
                msk |= (1 << j);

        v[msk].pb(i);
    }

    ans = -n;

    for (int i = 0; i < (1 << m); i++)
    for (int j = 0; j < (1 << m); j++)
        ans += f(i, j);

    cout << ans / 2;
}

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 11 / 11
• Subtask 5: 11 / 11
• Subtask 6: 11 / 11
• Subtask 7: 11 / 11
• Subtask 8: 11 / 11
• Subtask 9: 11 / 11
• Subtask 10: 11 / 11