Submission #567386

#	Time	Username	Problem	Language	Result	Execution time	Memory
567386		piOOE	Popeala (CEOI16_popeala)	C++17	0 / 100	556 ms	2356 KiB

popeala

#include <bits/stdc++.h>

using namespace std;

#define all(x) begin(x), end(x)
#define sz(x) ((int)size(x))
#define trace(x) cout << #x << ": " << (x) << endl;

typedef long long ll;

mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

const int S = 51, N = 51, T = 20001;
const ll infL = 3e18;

int L[S][T], R[S][T], W[S][T], s, n, t, A[T];
ll dp[S][T];

bool solved[N][T];

ll weight(int l, int r) {
    ll every = 0;
    for (int i = 1; i <= n; ++i) {
        ll sum = 0;
        bool ok = true;
        for (int j = l; j <= r; ++j) {
            if (!solved[i][j]) {
                ok = false;
                break;
            }
            sum += A[j];
        }
        every += (ok ? sum : 0ll);
    }
    return every;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> n >> t >> s;
    for (int i = 1; i <= t; ++i) {
        cin >> A[i];
    }
    for (int i = 1; i <= n; ++i) {
        string ss;
        cin >> ss;
        for (int j = 1; j <= t; ++j) {
            solved[i][j] = (ss[j - 1] == '1');
        }
    }
    for (int i = 1; i <= t; ++i) {
        for (int cnt = 1; cnt <= min(s, i); ++cnt) {
            dp[i][cnt] = infL;
            for (int j = i - 1; j >= 0; --j) {
                dp[i][cnt] = min(dp[i][cnt], dp[j][cnt - 1] + weight(j + 1, i));
            }
            if (i == t) {
                cout << dp[i][cnt] << '\n';
            }
        }
    }
    return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 74