oj.uz

Submission #1055155

# Submission time Handle Problem Language Result Execution time Memory
1055155 2024-08-12T14:59:53 Z j_vdd16 Copy and Paste 3 (JOI22_copypaste3) C++17
15 / 100
 3000 ms 917432 KB 
#include <algorithm>
#include <bitset>
#include <cstdint>
#include <cstring>
#include <iostream>
#include <limits.h>
#include <math.h>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>

#define int long long
#define loop(X, N) for(int X = 0; X < (N); X++)
#define all(V) V.begin(), V.end()
#define rall(V) V.rbegin(), V.rend()

using namespace std;

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> ii;
typedef vector<ii> vii;
typedef vector<vector<ii>> vvii;
typedef vector<bool> vb;
typedef vector<vector<bool>> vvb;

typedef uint64_t u64;
typedef int64_t i64;

int n;
string s;
int A, B, C;
int maxCost;

vector<vvb> isEqualSubstring;
map<pair<ii, ii>, int> memoize;
int solve(int a, int b, int c, int d) {
    if (a == b) {
        a = 0;
        b = 0;
    }
    if (c == d) {
        c = 0;
        d = 0;
    }

    if (d - c == 0) return (b - a) * A;

    if (memoize.count({{a, b}, {c, d}})) 
        return memoize[{{a, b}, {c, d}}];

    /*
    [a, b, c, d] depends on:
    [a, x < b, c, d]
    
    [0, 0, a, b] depends on:
    [a, b, c, y <= b]
    
    */

    int res = maxCost;
    if (b - 1 >= a)
        res = min(res, solve(a, b - 1, c, d) + A);
    
    if (b - (d - c) >= a && d > c && isEqualSubstring[c][d][b - (d - c)]) {
        res = min(res, solve(a, b - (d - c), c, d) + C);
    }
    
    if (a == 0 && b == 0) {
        loop(x, c) {
            for (int y = x; y < d; y++) {
                res = min(res, solve(c, d, x, y) + B);
            }
        }
    }

    memoize[{{a, b}, {c, d}}] = res;
    return res;
}

vector<vector<vvi>> dp;
int& get(int a, int b, int c, int d) {
    if (a == b) {
        a = 0;
        b = 0;
    }
    if (c == d) {
        c = 0;
        d = 0;
    }

    return dp[a][b][c][d];
}

signed main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);

    //dp cost of building S[a, b] with S[c, d] in clipboard

    cin >> n;

    cin >> s;

    cin >> A >> B >> C;

    maxCost = max({A, B, C}) * n;

    isEqualSubstring = vector<vvb>(n + 1, vvb(n + 1, vb(n + 1)));
    loop(i, n) {
        loop(j, n) {
            int sz = 1;
            while (max(i, j) + sz <= n && s[i + sz - 1] == s[j + sz - 1]) {
                isEqualSubstring[i][i + sz][j] = true;
                sz++;
            }
        }
    }
    /*
    dp[a][b][c][d]
    */
    // loop(i, n) {
    //     dp[i][i][n][n] = A;
    // }
    // for (int i = 1; i <= 2 * n; i++) {

    // }

    /*
    dp[a][b][c][d]

    dp[a][b][c][d] = min(dp[a][b][c][d], dp[a][b - 1][c][d] + A)
    dp[0][0][c][d] = min(dp[c][d][a][b] + B)

    if (s[b-(d-c), b] == s[c, d]) dp[a][b][c][d] = min(dp[a][b][c][d], dp[a][b-(d-c)][c][d] + C)

    */
    // dp = vector<vector<vvi>>(n + 1, vector<vvi>(n + 1, vvi(n + 1, vi(n + 1, maxCost))));

    // dp[0][0][0][0] = 0;
    // loop(c, n + 1) {
    //     for (int d = c; d < n + 1; d++) {
    //         loop(a, n + 1) {
    //             for (int b = a; b < n + 1; b++) {
    //                 /*
    //                 [a, b, c, d] depends on:
    //                 [a, x < b, c, d]
                    
    //                 [0, 0, a, b] depends on:
    //                 [a, b, c, y <= b]
                    
    //                 */

    //                 if (b - 1 >= a)
    //                     get(a, b, c, d) = min(get(a, b, c, d), get(a, b - 1, c, d) + A);
                    
    //                 if (b - (d - c) >= a && d > c && s.substr(b - (d - c), d - c) == s.substr(c, d - c)) {
    //                     get(a, b, c, d) = min(get(a, b, c, d), get(a, b - (d - c), c, d) + C);
    //                 }
                    
    //                 if (d <= b)
    //                     get(0, 0, a, b) = min(get(0, 0, a, b), get(a, b, c, d) + B);
    //             }
    //         }
    //     }
    // }

    int result = maxCost;
    loop(c, n + 1) {
        for (int d = c; d < n + 1; d++) {
            //result = min(result, dp[0][n][c][d]);
            result = min(result, solve(0, n, c, d));
        }
    }

    cout << result << endl;

    // map<string, int> clipBoardCost;
    // clipBoardCost[""] = 0;
    // loop(i, n) {
    //     clipBoardCost[s.substr(i, 1)] = A + B;
    // }
    // for (int sz = 2; sz <= n; sz++) {
    //     loop(i, n) {
    //         string goal = s.substr(i, sz);
    //         string prev = goal;
    //         prev.pop_back();

    //         clipBoardCost[goal] = min(clipBoardCost[goal], sz * A);
            
    //     }
    // }

    return 0;

    // vvi cost(n + 1, vi(n + 1, maxCost));
    // cost[0][0] = 0;
    
    // //cost[0][j] = min(cost[j][i] + B)
    // //cost[i][j] = min(cost[i - j][j] + C, cost[i - 1][j] + A)
    // loop(i, n + 1) {
    //     loop(j, n + 1) {
    //         if (i - 1 >= 0) cost[i][j] = min(cost[i][j], cost[i - 1][j] + A);
    //         if (i - j >= 0) cost[i][j] = min(cost[i][j], cost[i - j][j] + C);

    //         cost[0][i] = min(cost[0][i], cost[i][j] + B);
    //     }
    // }

    // int result = maxCost;
    // loop(j, n + 1) {
    //     result = min(result, cost[n][j]);
    // }

    // cout << result << endl;

	// return 0;
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 452 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1116 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Execution timed out 3081 ms 917432 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 452 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 4 ms 1116 KB Output is correct
13 Correct 4 ms 1672 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 5 ms 1960 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 40 ms 9392 KB Output is correct
22 Correct 35 ms 9176 KB Output is correct
23 Correct 42 ms 9300 KB Output is correct
24 Correct 36 ms 9300 KB Output is correct
25 Correct 34 ms 9368 KB Output is correct
26 Correct 37 ms 9280 KB Output is correct
27 Correct 48 ms 9332 KB Output is correct
28 Correct 44 ms 9300 KB Output is correct
29 Correct 37 ms 9296 KB Output is correct
30 Correct 32 ms 9300 KB Output is correct
31 Correct 33 ms 9220 KB Output is correct
32 Correct 32 ms 9300 KB Output is correct
33 Correct 31 ms 9296 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 448 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 2 ms 604 KB Output is correct
39 Correct 37 ms 9296 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 452 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 4 ms 1116 KB Output is correct
13 Correct 4 ms 1672 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 5 ms 1960 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 40 ms 9392 KB Output is correct
22 Correct 35 ms 9176 KB Output is correct
23 Correct 42 ms 9300 KB Output is correct
24 Correct 36 ms 9300 KB Output is correct
25 Correct 34 ms 9368 KB Output is correct
26 Correct 37 ms 9280 KB Output is correct
27 Correct 48 ms 9332 KB Output is correct
28 Correct 44 ms 9300 KB Output is correct
29 Correct 37 ms 9296 KB Output is correct
30 Correct 32 ms 9300 KB Output is correct
31 Correct 33 ms 9220 KB Output is correct
32 Correct 32 ms 9300 KB Output is correct
33 Correct 31 ms 9296 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 448 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 2 ms 604 KB Output is correct
39 Correct 37 ms 9296 KB Output is correct
40 Correct 2717 ms 532032 KB Output is correct
41 Execution timed out 3090 ms 441624 KB Time limit exceeded
42 Halted 0 ms 0 KB -

Subtask #5
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 452 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 4 ms 1116 KB Output is correct
13 Correct 4 ms 1672 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 5 ms 1960 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 40 ms 9392 KB Output is correct
22 Correct 35 ms 9176 KB Output is correct
23 Correct 42 ms 9300 KB Output is correct
24 Correct 36 ms 9300 KB Output is correct
25 Correct 34 ms 9368 KB Output is correct
26 Correct 37 ms 9280 KB Output is correct
27 Correct 48 ms 9332 KB Output is correct
28 Correct 44 ms 9300 KB Output is correct
29 Correct 37 ms 9296 KB Output is correct
30 Correct 32 ms 9300 KB Output is correct
31 Correct 33 ms 9220 KB Output is correct
32 Correct 32 ms 9300 KB Output is correct
33 Correct 31 ms 9296 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 448 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 2 ms 604 KB Output is correct
39 Correct 37 ms 9296 KB Output is correct
40 Correct 2717 ms 532032 KB Output is correct
41 Execution timed out 3090 ms 441624 KB Time limit exceeded
42 Halted 0 ms 0 KB -

Subtask #6
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 452 KB Output is correct
11 Correct 3 ms 1116 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Execution timed out 3081 ms 917432 KB Time limit exceeded
14 Halted 0 ms 0 KB -