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답안 #951788

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
951788 2024-03-22T16:03:16 Z EJIC_B_KEDAX Copy and Paste 3 (JOI22_copypaste3) C++17
57 / 100
 3000 ms 365752 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];
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++) {
        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);
        }
        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 38 ms 106580 KB Output is correct
2 Correct 37 ms 106588 KB Output is correct
3 Correct 39 ms 106580 KB Output is correct
4 Correct 38 ms 106580 KB Output is correct
5 Correct 37 ms 106580 KB Output is correct
6 Correct 45 ms 106584 KB Output is correct
7 Correct 37 ms 106584 KB Output is correct
8 Correct 37 ms 106588 KB Output is correct
9 Correct 37 ms 106384 KB Output is correct
10 Correct 38 ms 106580 KB Output is correct

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 37 ms 106576 KB Output is correct
2 Correct 38 ms 106576 KB Output is correct
3 Correct 1326 ms 261432 KB Output is correct
4 Correct 1496 ms 284952 KB Output is correct
5 Correct 1859 ms 309440 KB Output is correct
6 Correct 2356 ms 338740 KB Output is correct
7 Execution timed out 3060 ms 365752 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 106580 KB Output is correct
2 Correct 37 ms 106588 KB Output is correct
3 Correct 39 ms 106580 KB Output is correct
4 Correct 38 ms 106580 KB Output is correct
5 Correct 37 ms 106580 KB Output is correct
6 Correct 45 ms 106584 KB Output is correct
7 Correct 37 ms 106584 KB Output is correct
8 Correct 37 ms 106588 KB Output is correct
9 Correct 37 ms 106384 KB Output is correct
10 Correct 38 ms 106580 KB Output is correct
11 Correct 42 ms 106456 KB Output is correct
12 Correct 39 ms 106580 KB Output is correct
13 Correct 38 ms 106640 KB Output is correct
14 Correct 38 ms 106608 KB Output is correct
15 Correct 39 ms 106580 KB Output is correct
16 Correct 38 ms 106584 KB Output is correct
17 Correct 37 ms 106576 KB Output is correct
18 Correct 37 ms 104540 KB Output is correct
19 Correct 38 ms 106580 KB Output is correct
20 Correct 37 ms 106480 KB Output is correct
21 Correct 38 ms 106580 KB Output is correct
22 Correct 38 ms 106576 KB Output is correct
23 Correct 39 ms 106576 KB Output is correct
24 Correct 38 ms 106556 KB Output is correct
25 Correct 38 ms 106572 KB Output is correct
26 Correct 39 ms 106576 KB Output is correct
27 Correct 38 ms 106580 KB Output is correct
28 Correct 38 ms 106580 KB Output is correct
29 Correct 38 ms 106688 KB Output is correct
30 Correct 39 ms 106588 KB Output is correct
31 Correct 38 ms 106580 KB Output is correct
32 Correct 37 ms 106588 KB Output is correct
33 Correct 38 ms 106588 KB Output is correct
34 Correct 37 ms 104396 KB Output is correct
35 Correct 37 ms 106576 KB Output is correct
36 Correct 37 ms 106580 KB Output is correct
37 Correct 37 ms 106580 KB Output is correct
38 Correct 38 ms 106588 KB Output is correct
39 Correct 38 ms 106588 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 106580 KB Output is correct
2 Correct 37 ms 106588 KB Output is correct
3 Correct 39 ms 106580 KB Output is correct
4 Correct 38 ms 106580 KB Output is correct
5 Correct 37 ms 106580 KB Output is correct
6 Correct 45 ms 106584 KB Output is correct
7 Correct 37 ms 106584 KB Output is correct
8 Correct 37 ms 106588 KB Output is correct
9 Correct 37 ms 106384 KB Output is correct
10 Correct 38 ms 106580 KB Output is correct
11 Correct 42 ms 106456 KB Output is correct
12 Correct 39 ms 106580 KB Output is correct
13 Correct 38 ms 106640 KB Output is correct
14 Correct 38 ms 106608 KB Output is correct
15 Correct 39 ms 106580 KB Output is correct
16 Correct 38 ms 106584 KB Output is correct
17 Correct 37 ms 106576 KB Output is correct
18 Correct 37 ms 104540 KB Output is correct
19 Correct 38 ms 106580 KB Output is correct
20 Correct 37 ms 106480 KB Output is correct
21 Correct 38 ms 106580 KB Output is correct
22 Correct 38 ms 106576 KB Output is correct
23 Correct 39 ms 106576 KB Output is correct
24 Correct 38 ms 106556 KB Output is correct
25 Correct 38 ms 106572 KB Output is correct
26 Correct 39 ms 106576 KB Output is correct
27 Correct 38 ms 106580 KB Output is correct
28 Correct 38 ms 106580 KB Output is correct
29 Correct 38 ms 106688 KB Output is correct
30 Correct 39 ms 106588 KB Output is correct
31 Correct 38 ms 106580 KB Output is correct
32 Correct 37 ms 106588 KB Output is correct
33 Correct 38 ms 106588 KB Output is correct
34 Correct 37 ms 104396 KB Output is correct
35 Correct 37 ms 106576 KB Output is correct
36 Correct 37 ms 106580 KB Output is correct
37 Correct 37 ms 106580 KB Output is correct
38 Correct 38 ms 106588 KB Output is correct
39 Correct 38 ms 106588 KB Output is correct
40 Correct 41 ms 109288 KB Output is correct
41 Correct 45 ms 114064 KB Output is correct
42 Correct 44 ms 113744 KB Output is correct
43 Correct 42 ms 113748 KB Output is correct
44 Correct 42 ms 113764 KB Output is correct
45 Correct 42 ms 113744 KB Output is correct
46 Correct 43 ms 113748 KB Output is correct
47 Correct 42 ms 113880 KB Output is correct
48 Correct 42 ms 113912 KB Output is correct
49 Correct 43 ms 113748 KB Output is correct
50 Correct 42 ms 113752 KB Output is correct
51 Correct 45 ms 113900 KB Output is correct
52 Correct 43 ms 113884 KB Output is correct
53 Correct 42 ms 113804 KB Output is correct

Subtask #5
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 106580 KB Output is correct
2 Correct 37 ms 106588 KB Output is correct
3 Correct 39 ms 106580 KB Output is correct
4 Correct 38 ms 106580 KB Output is correct
5 Correct 37 ms 106580 KB Output is correct
6 Correct 45 ms 106584 KB Output is correct
7 Correct 37 ms 106584 KB Output is correct
8 Correct 37 ms 106588 KB Output is correct
9 Correct 37 ms 106384 KB Output is correct
10 Correct 38 ms 106580 KB Output is correct
11 Correct 42 ms 106456 KB Output is correct
12 Correct 39 ms 106580 KB Output is correct
13 Correct 38 ms 106640 KB Output is correct
14 Correct 38 ms 106608 KB Output is correct
15 Correct 39 ms 106580 KB Output is correct
16 Correct 38 ms 106584 KB Output is correct
17 Correct 37 ms 106576 KB Output is correct
18 Correct 37 ms 104540 KB Output is correct
19 Correct 38 ms 106580 KB Output is correct
20 Correct 37 ms 106480 KB Output is correct
21 Correct 38 ms 106580 KB Output is correct
22 Correct 38 ms 106576 KB Output is correct
23 Correct 39 ms 106576 KB Output is correct
24 Correct 38 ms 106556 KB Output is correct
25 Correct 38 ms 106572 KB Output is correct
26 Correct 39 ms 106576 KB Output is correct
27 Correct 38 ms 106580 KB Output is correct
28 Correct 38 ms 106580 KB Output is correct
29 Correct 38 ms 106688 KB Output is correct
30 Correct 39 ms 106588 KB Output is correct
31 Correct 38 ms 106580 KB Output is correct
32 Correct 37 ms 106588 KB Output is correct
33 Correct 38 ms 106588 KB Output is correct
34 Correct 37 ms 104396 KB Output is correct
35 Correct 37 ms 106576 KB Output is correct
36 Correct 37 ms 106580 KB Output is correct
37 Correct 37 ms 106580 KB Output is correct
38 Correct 38 ms 106588 KB Output is correct
39 Correct 38 ms 106588 KB Output is correct
40 Correct 41 ms 109288 KB Output is correct
41 Correct 45 ms 114064 KB Output is correct
42 Correct 44 ms 113744 KB Output is correct
43 Correct 42 ms 113748 KB Output is correct
44 Correct 42 ms 113764 KB Output is correct
45 Correct 42 ms 113744 KB Output is correct
46 Correct 43 ms 113748 KB Output is correct
47 Correct 42 ms 113880 KB Output is correct
48 Correct 42 ms 113912 KB Output is correct
49 Correct 43 ms 113748 KB Output is correct
50 Correct 42 ms 113752 KB Output is correct
51 Correct 45 ms 113900 KB Output is correct
52 Correct 43 ms 113884 KB Output is correct
53 Correct 42 ms 113804 KB Output is correct
54 Correct 59 ms 125544 KB Output is correct
55 Correct 329 ms 166796 KB Output is correct
56 Correct 168 ms 149152 KB Output is correct
57 Correct 145 ms 147296 KB Output is correct
58 Correct 127 ms 147100 KB Output is correct
59 Correct 127 ms 147104 KB Output is correct
60 Correct 128 ms 146868 KB Output is correct
61 Correct 138 ms 148084 KB Output is correct
62 Correct 300 ms 162436 KB Output is correct
63 Correct 139 ms 147536 KB Output is correct
64 Correct 144 ms 148304 KB Output is correct
65 Correct 211 ms 154964 KB Output is correct
66 Correct 213 ms 154796 KB Output is correct
67 Correct 124 ms 147024 KB Output is correct

Subtask #6
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 106580 KB Output is correct
2 Correct 37 ms 106588 KB Output is correct
3 Correct 39 ms 106580 KB Output is correct
4 Correct 38 ms 106580 KB Output is correct
5 Correct 37 ms 106580 KB Output is correct
6 Correct 45 ms 106584 KB Output is correct
7 Correct 37 ms 106584 KB Output is correct
8 Correct 37 ms 106588 KB Output is correct
9 Correct 37 ms 106384 KB Output is correct
10 Correct 38 ms 106580 KB Output is correct
11 Correct 37 ms 106576 KB Output is correct
12 Correct 38 ms 106576 KB Output is correct
13 Correct 1326 ms 261432 KB Output is correct
14 Correct 1496 ms 284952 KB Output is correct
15 Correct 1859 ms 309440 KB Output is correct
16 Correct 2356 ms 338740 KB Output is correct
17 Execution timed out 3060 ms 365752 KB Time limit exceeded
18 Halted 0 ms 0 KB -