oj.uz

Submission #567450

# Submission time Handle Problem Language Result Execution time Memory
567450 2022-05-23T13:30:06 Z piOOE Popeala (CEOI16_popeala) C++17
17 / 100
 2000 ms 47940 KB 
#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 = 4001;
const ll infL = 3e18;

int s, n, t, A[T], ct[T][T], opt[T][S];
ll dp[T][S], pref[T];

bool solved[N][T];

template<typename T>
bool ckmn(T &a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}

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

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> n >> t >> s;
    for (int i = 1; i <= t; ++i) {
        cin >> A[i];
        pref[i] = pref[i - 1] + 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 k = 1; k <= n; k++) {
        for (int i = 1; i <= t; i++) {
            int cur = solved[k][i];
            ct[i][i] += cur;
            for (int j = i + 1; j <= t; j++) {
                if (solved[k][j] == 0) cur = 0;
                ct[i][j] += cur;
            }
        }
    }
    fill(dp[0] + 1, dp[0] + s + 1, infL);
    for (int i = 1; i <= t; ++i) {
        dp[i][1] = pref[i] * ct[1][i];
        for (int cnt = s; cnt > 1; --cnt) {
            dp[i][cnt] = infL;
            for (int j = max(i - 1, (cnt == s ? i - 1 : opt[i][cnt + 1])); j >= cnt - 1; --j) {
                if (ckmn(dp[i][cnt], dp[j][cnt - 1] + (pref[i] - pref[j]) * ct[j + 1][i])) {
                    opt[i][cnt] = j;
                }
            }
        }
    }
    for (int i = 1; i <= s; ++i)
        cout << dp[t][i] << '\n';
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 596 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 3284 KB Output is correct
2 Correct 20 ms 3324 KB Output is correct
3 Correct 15 ms 3316 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 750 ms 20172 KB Output is correct
2 Correct 1715 ms 32108 KB Output is correct
3 Execution timed out 2074 ms 47940 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 74.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 16 ms 3284 KB Output is correct
4 Correct 20 ms 3324 KB Output is correct
5 Correct 15 ms 3316 KB Output is correct
6 Correct 750 ms 20172 KB Output is correct
7 Correct 1715 ms 32108 KB Output is correct
8 Execution timed out 2074 ms 47940 KB Time limit exceeded
9 Halted 0 ms 0 KB -