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Submission #988459

# Submission time Handle Problem Language Result Execution time Memory
988459 2024-05-24T18:02:26 Z LOLOLO Popeala (CEOI16_popeala) C++17
0 / 100
 82 ms 8476 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define           f     first
#define           s     second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (int)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    (ll)__builtin_popcountll(x)
#define       len(x)    (int)(x.length())
 
const int N = 20000 + 10;

ll mask[N], p[N];
ll dp[51][N];

bool minimize(ll &a, ll b) {
    if (a > b) {
        a = b;
        return 1;
    }

    return 0;
}

void solve() {
    mem(dp, 0x3f);

    int n, t, s;
    cin >> n >> t >> s;

    for (int i = 1; i <= t; i++) {
        cin >> p[i];
        p[i] += p[i - 1];
    }

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= t; j++) {
            char c;
            cin >> c;
            if (c == '1') {
                mask[j] |= ((ll)1 << (i - 1));
            }
        }
    }

    dp[0][0] = 0;
    for (int k = 1; k <= s; k++) {
        vector <pair <ll, ll>> best;
        for (int i = 1; i <= t; i++) {
            vector <pair <ll, ll>> nxt;
            ll val = -1, id = 0;
            for (auto x : best) {
                if ((mask[i] & x.f) == x.f) {
                    val = x.f;
                    break;
                } 
                id++;
            }

            pair <ll, ll> cur = {mask[i], i};
            ll all = mask[i], all2 = mask[i - 1];
            for (int j = i; j >= 1; j--) {
                all &= mask[j];

                if (j < i)
                    all2 &= mask[j];

                if (all != cur.f) {
                    nxt.pb(cur);
                    cur = {all, j};
                } else {
                    if (dp[k - 1][cur.s - 1] + (p[i] - p[cur.s - 1]) * cntbit(cur.f) > dp[k - 1][j - 1] + (p[i] - p[j - 1]) * cntbit(all)) {
                        cur = {all, j};
                    }
                }

                if (all2 == val)
                    break;
            }

            if (cur.f != val) {
                nxt.pb(cur);
            } else if (id < sz(best)) {
                auto cur = best[id];
                if (dp[k - 1][i - 1] + (p[i] - p[i - 1]) * cntbit(val) < dp[k - 1][cur.s - 1] + (p[i] - p[cur.s - 1]) * cntbit(cur.f)) {
                    best[id] = {mask[i], i};
                } 
            }

            for (auto x : best) {
                if (x.f <= val)
                    nxt.pb({x.f, x.s});
            } 

            best = nxt;
            for (auto cur : best)
                minimize(dp[k][i], dp[k - 1][cur.s - 1] + (p[i] - p[cur.s - 1]) * cntbit(cur.f)); 
        }
    }

    for (int i = 1; i <= s; i++) {
        cout << dp[i][t] << '\n';
    }
}

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

    int t = 1;
    //cin >> t;

    while (t--) {
        solve();
        //cout << solve() << '\n';
    }

    return 0;
}

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8284 KB Output is correct
2 Incorrect 4 ms 8284 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 8476 KB Output is correct
2 Incorrect 21 ms 8280 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 82 ms 8476 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 74.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8284 KB Output is correct
2 Incorrect 4 ms 8284 KB Output isn't correct
3 Halted 0 ms 0 KB -