Submission #948149

#	Time	Username	Problem	Language	Result	Execution time	Memory
948149		Blagoj	Vještica (COCI16_vjestica)	C++17	160 / 160	86 ms	1520 KiB

vjestica

#include <bits/stdc++.h>

using namespace std;

#define endl '\n'
#define ll long long
#define all(x) (x).begin(), (x).end()

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin >> n;
    int len[n], cnt[n][26];
    memset(cnt, 0, sizeof(cnt));
    for (int i = 0; i < n; i++) {
        string s;
        cin >> s;
        len[i] = s.size();
        for (auto x : s) cnt[i][x - 'a']++;
    }
    ll dp[1 << n];
    for (int mask = 1; mask < (1 << n); mask++) {
        if (__builtin_popcount(mask) == 1) {
            for (int j = 0; j < n; j++) {
                if (mask & (1 << j)) dp[mask] = len[j];
            }
            continue;
        }
        int sum = 0;
        int mn[26];
        for (int j = 0; j < 26; j++) mn[j] = 1e9;
        for (int j = 0; j < n; j++) {
            if (mask & (1 << j)) {
                for (int k = 0; k < 26; k++) mn[k] = min(mn[k], cnt[j][k]);
            }
        }
        for (int j = 0; j < 26; j++) sum += mn[j];
        dp[mask] = 1e9;
        for (int sub = mask & (mask - 1); sub; sub = mask & (sub - 1)) {
            dp[mask] = min(dp[mask], dp[sub] + dp[mask ^ sub] - sum);
        }
    }
    cout << dp[(1 << n) - 1] + 1;
}

• Subtask 1: 160 / 160