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답안 #951793

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
951793 2024-03-22T16:14:41 Z EJIC_B_KEDAX Copy and Paste 3 (JOI22_copypaste3) C++17
57 / 100
 3000 ms 395516 KB 
#ifdef LOCAL
    #define _GLIBCXX_DEBUG
#endif
#include <bits/stdc++.h>

#ifndef LOCAL
    // #pragma GCC optimize("O3")
    // #pragma GCC optimize("Ofast")
    // #pragma GCC optimize("unroll-loops")
    // #pragma GCC target("avx,avx2,bmi,bmi2,popcnt,lzcnt")
#endif
using namespace std;
using ll = long long;
using ld = long double;
#define x first
#define y second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()

mt19937_64 mt(time(0));

void solve();
void init();

int32_t main() {
#ifndef LOCAL
    cin.tie(nullptr)->sync_with_stdio(false);
#endif
    cout << fixed << setprecision(30);
    init();
    int t = 1;
    // cin >> t;
    while (t--) {
        solve();
    }
}

const int N = 2525, mod = 1000000321, p = 31;
ll dp[N][N], mem[N][N];
int to[N][N], nw[N][N], hsh[N], pdeg[N], pinv[N];
vector<pair<int, int>> upd[N];

int add(int a, int b) {
    return a + b >= mod ? a + b - mod : a + b;
}

int sub(int a, int b) {
    return a >= b ? a - b : a - b + mod;
}

int mul(int a, int b) {
    return 1ll * a * b % mod;
}

int bin_pow(int a, int x) {
    int res = 1;
    while (x) {
        if (x & 1) {
            res = mul(res, a);
        }
        a = mul(a, a);
        x >>= 1;
    }
    return res;
}

int inv(int a) {
    return bin_pow(a, mod - 2);
}

void init() {
    pdeg[0] = 1;
    pdeg[1] = p;
    pinv[0] = 1;
    pinv[1] = inv(p);
    for (int i = 2; i < N; i++) {
        pdeg[i] = mul(pdeg[i - 1], p);
        pinv[i] = mul(pinv[i - 1], pinv[1]);
    }
}

int get_hash(int l, int r) {
    return mul(sub(hsh[r + 1], hsh[l]), pinv[l]);
}

struct segment_tree {
    vector<ll> st;
    int size;
    segment_tree(int sz = N) {
        st.resize(2 * sz, 0);
        size = sz;
    }
    void add(int i, ll v) {
        i += size;
        st[i] += v;
        i >>= 1;
        while (i) {
            st[i] = min(st[2 * i], st[2 * i + 1]);
            i >>= 1;
        }
    }
    ll get_min(int l, int r) {
        l += size;
        r += size;
        ll res = INT64_MAX;
        while (l <= r) {
            if (l & 1) {
                res = min(res, st[l++]);
            }
            if (~r & 1) {
                res = min(res, st[r--]);
            }
            l >>= 1;
            r >>= 1;
        }
        return res;
    }
};

segment_tree st[N];

void solve() {
    int n;
    cin >> n;
    string s;
    cin >> s;
    int a, b, c;
    cin >> a >> b >> c;
    hsh[0] = 0;
    for (int i = 0; i < n; i++) {
        hsh[i + 1] = add(hsh[i], mul(s[i] - 'a' + 1, pdeg[i]));
        upd[i].reserve(40 * N);
    }
    for (int l = 0; l < n; l++) {
        unordered_map<int, int> mp;
        for (int i = 0; i < n - l; i++) {
            int j = i + l;
            int nw = get_hash(i, j);
            if (mp.find(nw) == mp.end()) {
                to[i][j] = -1;
            } else {
                to[i][j] = mp[nw];
            }
            if (i >= l) {
                mp[get_hash(i - l, i)] = i - l;
            }
        }
    }
    for (int i = 0; i < n; i++) {
        dp[i][i] = a;
        // save[i][i] = b + c;
        st[i].add(i, b + c);
        nw[i][i] = to[i][i];
        if (to[i][i] != -1) {
            upd[i - to[i][i]].emplace_back(i, i);
        }
    }
    for (int l = 1; l < n; l++) {
        assert(upd[l].size() <= 40 * N);
        for (auto [i, j] : upd[l]) {
            int nxt = to[nw[i][j]][nw[i][j] + j - i];
            nw[i][j] = nxt;
            if (nxt >= 0) {
                upd[j - nxt].emplace_back(i, j);
            }
            // save[j][i] += b - 1ll * (j - i + 1) * a;
            // st[j].add(i, c - 1ll * (j - i + 1) * a);
            mem[j][i] += b - 1ll * (j - i + 1) * a;
        }
        for (auto [i, j] : upd[l]) {
            if (mem[j][i]) {
                st[j].add(i, c - 1ll * (j - i + 1) * a);
                mem[j][i] = 0;
            }
        }
        for (int i = 0; i < n - l; i++) {
            int j = i + l;
            dp[i][j] = min(1ll * (j - i + 1) * a + min(0ll, st[j].get_min(i + 1, j)), dp[i][j - 1] + a);
            st[j].add(i, dp[i][j] + b + c - 1ll * (j - i + 1) * a);
            nw[i][j] = to[i][j];
            if (nw[i][j] != -1) {
                upd[j - nw[i][j]].emplace_back(i, j);
            }
        }
    }
    // cout << to[3][3] << '\n';
    // for (int i = 0; i < n; i++) {
    //     for (int j = i; j < n; j++) {
    //         cout << dp[i][j] << ' ';
    //     }
    //     cout << '\n';
    // }
    cout << dp[0][n - 1] << '\n';
}

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 44 ms 108636 KB Output is correct
2 Correct 38 ms 108688 KB Output is correct
3 Correct 40 ms 108628 KB Output is correct
4 Correct 38 ms 108636 KB Output is correct
5 Correct 40 ms 108628 KB Output is correct
6 Correct 37 ms 106576 KB Output is correct
7 Correct 38 ms 106576 KB Output is correct
8 Correct 38 ms 108624 KB Output is correct
9 Correct 37 ms 108636 KB Output is correct
10 Correct 38 ms 108628 KB Output is correct

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 108632 KB Output is correct
2 Correct 39 ms 108544 KB Output is correct
3 Correct 1281 ms 300664 KB Output is correct
4 Correct 1584 ms 326212 KB Output is correct
5 Correct 2004 ms 354548 KB Output is correct
6 Correct 2371 ms 381628 KB Output is correct
7 Execution timed out 3045 ms 395516 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 44 ms 108636 KB Output is correct
2 Correct 38 ms 108688 KB Output is correct
3 Correct 40 ms 108628 KB Output is correct
4 Correct 38 ms 108636 KB Output is correct
5 Correct 40 ms 108628 KB Output is correct
6 Correct 37 ms 106576 KB Output is correct
7 Correct 38 ms 106576 KB Output is correct
8 Correct 38 ms 108624 KB Output is correct
9 Correct 37 ms 108636 KB Output is correct
10 Correct 38 ms 108628 KB Output is correct
11 Correct 38 ms 108628 KB Output is correct
12 Correct 40 ms 108624 KB Output is correct
13 Correct 43 ms 108716 KB Output is correct
14 Correct 38 ms 108540 KB Output is correct
15 Correct 38 ms 108628 KB Output is correct
16 Correct 37 ms 108628 KB Output is correct
17 Correct 38 ms 108628 KB Output is correct
18 Correct 37 ms 104532 KB Output is correct
19 Correct 37 ms 108636 KB Output is correct
20 Correct 38 ms 108632 KB Output is correct
21 Correct 40 ms 108628 KB Output is correct
22 Correct 38 ms 108628 KB Output is correct
23 Correct 39 ms 108636 KB Output is correct
24 Correct 38 ms 108736 KB Output is correct
25 Correct 39 ms 108628 KB Output is correct
26 Correct 40 ms 108880 KB Output is correct
27 Correct 38 ms 108740 KB Output is correct
28 Correct 38 ms 108788 KB Output is correct
29 Correct 38 ms 108808 KB Output is correct
30 Correct 38 ms 108628 KB Output is correct
31 Correct 38 ms 108628 KB Output is correct
32 Correct 39 ms 108628 KB Output is correct
33 Correct 38 ms 108632 KB Output is correct
34 Correct 37 ms 104556 KB Output is correct
35 Correct 38 ms 108624 KB Output is correct
36 Correct 38 ms 108624 KB Output is correct
37 Correct 38 ms 108624 KB Output is correct
38 Correct 37 ms 108624 KB Output is correct
39 Correct 42 ms 108840 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 44 ms 108636 KB Output is correct
2 Correct 38 ms 108688 KB Output is correct
3 Correct 40 ms 108628 KB Output is correct
4 Correct 38 ms 108636 KB Output is correct
5 Correct 40 ms 108628 KB Output is correct
6 Correct 37 ms 106576 KB Output is correct
7 Correct 38 ms 106576 KB Output is correct
8 Correct 38 ms 108624 KB Output is correct
9 Correct 37 ms 108636 KB Output is correct
10 Correct 38 ms 108628 KB Output is correct
11 Correct 38 ms 108628 KB Output is correct
12 Correct 40 ms 108624 KB Output is correct
13 Correct 43 ms 108716 KB Output is correct
14 Correct 38 ms 108540 KB Output is correct
15 Correct 38 ms 108628 KB Output is correct
16 Correct 37 ms 108628 KB Output is correct
17 Correct 38 ms 108628 KB Output is correct
18 Correct 37 ms 104532 KB Output is correct
19 Correct 37 ms 108636 KB Output is correct
20 Correct 38 ms 108632 KB Output is correct
21 Correct 40 ms 108628 KB Output is correct
22 Correct 38 ms 108628 KB Output is correct
23 Correct 39 ms 108636 KB Output is correct
24 Correct 38 ms 108736 KB Output is correct
25 Correct 39 ms 108628 KB Output is correct
26 Correct 40 ms 108880 KB Output is correct
27 Correct 38 ms 108740 KB Output is correct
28 Correct 38 ms 108788 KB Output is correct
29 Correct 38 ms 108808 KB Output is correct
30 Correct 38 ms 108628 KB Output is correct
31 Correct 38 ms 108628 KB Output is correct
32 Correct 39 ms 108628 KB Output is correct
33 Correct 38 ms 108632 KB Output is correct
34 Correct 37 ms 104556 KB Output is correct
35 Correct 38 ms 108624 KB Output is correct
36 Correct 38 ms 108624 KB Output is correct
37 Correct 38 ms 108624 KB Output is correct
38 Correct 37 ms 108624 KB Output is correct
39 Correct 42 ms 108840 KB Output is correct
40 Correct 41 ms 113240 KB Output is correct
41 Correct 49 ms 120092 KB Output is correct
42 Correct 45 ms 119892 KB Output is correct
43 Correct 43 ms 119888 KB Output is correct
44 Correct 42 ms 119888 KB Output is correct
45 Correct 45 ms 119892 KB Output is correct
46 Correct 42 ms 119928 KB Output is correct
47 Correct 43 ms 119892 KB Output is correct
48 Correct 44 ms 119888 KB Output is correct
49 Correct 43 ms 119996 KB Output is correct
50 Correct 44 ms 119892 KB Output is correct
51 Correct 43 ms 119868 KB Output is correct
52 Correct 43 ms 119840 KB Output is correct
53 Correct 43 ms 119896 KB Output is correct

Subtask #5
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 44 ms 108636 KB Output is correct
2 Correct 38 ms 108688 KB Output is correct
3 Correct 40 ms 108628 KB Output is correct
4 Correct 38 ms 108636 KB Output is correct
5 Correct 40 ms 108628 KB Output is correct
6 Correct 37 ms 106576 KB Output is correct
7 Correct 38 ms 106576 KB Output is correct
8 Correct 38 ms 108624 KB Output is correct
9 Correct 37 ms 108636 KB Output is correct
10 Correct 38 ms 108628 KB Output is correct
11 Correct 38 ms 108628 KB Output is correct
12 Correct 40 ms 108624 KB Output is correct
13 Correct 43 ms 108716 KB Output is correct
14 Correct 38 ms 108540 KB Output is correct
15 Correct 38 ms 108628 KB Output is correct
16 Correct 37 ms 108628 KB Output is correct
17 Correct 38 ms 108628 KB Output is correct
18 Correct 37 ms 104532 KB Output is correct
19 Correct 37 ms 108636 KB Output is correct
20 Correct 38 ms 108632 KB Output is correct
21 Correct 40 ms 108628 KB Output is correct
22 Correct 38 ms 108628 KB Output is correct
23 Correct 39 ms 108636 KB Output is correct
24 Correct 38 ms 108736 KB Output is correct
25 Correct 39 ms 108628 KB Output is correct
26 Correct 40 ms 108880 KB Output is correct
27 Correct 38 ms 108740 KB Output is correct
28 Correct 38 ms 108788 KB Output is correct
29 Correct 38 ms 108808 KB Output is correct
30 Correct 38 ms 108628 KB Output is correct
31 Correct 38 ms 108628 KB Output is correct
32 Correct 39 ms 108628 KB Output is correct
33 Correct 38 ms 108632 KB Output is correct
34 Correct 37 ms 104556 KB Output is correct
35 Correct 38 ms 108624 KB Output is correct
36 Correct 38 ms 108624 KB Output is correct
37 Correct 38 ms 108624 KB Output is correct
38 Correct 37 ms 108624 KB Output is correct
39 Correct 42 ms 108840 KB Output is correct
40 Correct 41 ms 113240 KB Output is correct
41 Correct 49 ms 120092 KB Output is correct
42 Correct 45 ms 119892 KB Output is correct
43 Correct 43 ms 119888 KB Output is correct
44 Correct 42 ms 119888 KB Output is correct
45 Correct 45 ms 119892 KB Output is correct
46 Correct 42 ms 119928 KB Output is correct
47 Correct 43 ms 119892 KB Output is correct
48 Correct 44 ms 119888 KB Output is correct
49 Correct 43 ms 119996 KB Output is correct
50 Correct 44 ms 119892 KB Output is correct
51 Correct 43 ms 119868 KB Output is correct
52 Correct 43 ms 119840 KB Output is correct
53 Correct 43 ms 119896 KB Output is correct
54 Correct 63 ms 135628 KB Output is correct
55 Correct 316 ms 189268 KB Output is correct
56 Correct 160 ms 171348 KB Output is correct
57 Correct 146 ms 169792 KB Output is correct
58 Correct 127 ms 169588 KB Output is correct
59 Correct 130 ms 169688 KB Output is correct
60 Correct 124 ms 169680 KB Output is correct
61 Correct 151 ms 170820 KB Output is correct
62 Correct 276 ms 184980 KB Output is correct
63 Correct 137 ms 170068 KB Output is correct
64 Correct 152 ms 171060 KB Output is correct
65 Correct 208 ms 177488 KB Output is correct
66 Correct 215 ms 177492 KB Output is correct
67 Correct 127 ms 169472 KB Output is correct

Subtask #6
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 44 ms 108636 KB Output is correct
2 Correct 38 ms 108688 KB Output is correct
3 Correct 40 ms 108628 KB Output is correct
4 Correct 38 ms 108636 KB Output is correct
5 Correct 40 ms 108628 KB Output is correct
6 Correct 37 ms 106576 KB Output is correct
7 Correct 38 ms 106576 KB Output is correct
8 Correct 38 ms 108624 KB Output is correct
9 Correct 37 ms 108636 KB Output is correct
10 Correct 38 ms 108628 KB Output is correct
11 Correct 38 ms 108632 KB Output is correct
12 Correct 39 ms 108544 KB Output is correct
13 Correct 1281 ms 300664 KB Output is correct
14 Correct 1584 ms 326212 KB Output is correct
15 Correct 2004 ms 354548 KB Output is correct
16 Correct 2371 ms 381628 KB Output is correct
17 Execution timed out 3045 ms 395516 KB Time limit exceeded
18 Halted 0 ms 0 KB -