oj.uz

Submission #578577

# Submission time Handle Problem Language Result Execution time Memory
578577 2022-06-17T10:15:13 Z InternetPerson10 Copy and Paste 3 (JOI22_copypaste3) C++17
57 / 100
 3000 ms 536472 KB 
#include <bits/stdc++.h>
typedef long long ll;

using namespace std;

ll ans[2501][2501];
ll num_ma[2501][2501];

int n;
string s;
ll a, b, c;

unordered_map<string, int> ma, revma;
vector<vector<int>> apps;
vector<vector<int>> ne;
vector<vector<vector<int>>> lift;
vector<int> siz;

ll f(int x, int y) {
    if(ans[x][y] != -1) return ans[x][y];
    if(y - x == 1) {
        return ans[x][y] = a;
    }
    ll best = f(x, y-1) + a;
    for(int i = x + (y - x + 1) / 2; i < y; i++) {
        if(a * (y - i) < c) break;
        int str_idx = num_ma[i][y];
        int l = 0, r = apps[str_idx].size();
        while(l != r - 1) {
            int mid = (l + r) / 2;
            if(apps[str_idx][mid] <= i) l = mid;
            else r = mid;
        }
        assert(apps[str_idx][l] == i);
        int ctApps = 1;
        // Optimize with binary lifting if this is right
        /*
        while(apps[str_idx][l] >= x) {
            ctApps++;
            l = ne[str_idx][l];
            if(l == -1) break;
        }
        */
        // Optimized
        for(int z = lift[str_idx][l].size() - 1; z >= 0; z--) {
            int tent = lift[str_idx][l][z];
            if(tent != -1) {
                if(apps[str_idx][tent] >= x) {
                    l = tent;
                    ctApps += (1 << z);
                }
            }
        }
        int indivChars = y - x - ctApps * (y - i);
        best = min(best, f(i, y) + b + a * indivChars + c * ctApps);
    }
    return ans[x][y] = best;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> s >> a >> b >> c;
    for(int i = 0; i <= n; i++) {
        for(int j = 0; j <= n; j++) {
            ans[i][j] = -1;
        }
    }
    for(int i = 0; i < n; i++) {
        string s2 = s.substr(i, 1);
        for(int j = i+1; j <= n; j++) {
            int x;
            if(!ma.count(s2)) {
                x = ma[s2] = ma.size();
                apps.push_back(vector<int>());
                siz.push_back(j-i);
            }
            else x = ma[s2];
            apps[x].push_back(i);
            num_ma[i][j] = x;
            if(j != n) s2.push_back(s[j]);
        }
    }
    for(auto p : ma) {
        string s2 = p.first;
        reverse(s2.begin(), s2.end());
        revma[s2] = p.second;
    }
    ne = apps;
    lift.resize(ne.size());
    for(int j = 0; j < ne.size(); j++) {
        lift[j].resize(ne[j].size());
        vector<int> v = ne[j];
        queue<int> q;
        for(int i = v.size() - 1; i >= 0; i--) {
            q.push(i);
            int g = q.front();
            while(v[g] - v[i] >= siz[j]) {
                q.pop();
                ne[j][g] = i;
                g = q.front();
            }
        }
        while(q.size()) {
            int g = q.front();
            q.pop();
            ne[j][g] = -1;
        }
        for(int k = 0; k < v.size(); k++) {
            lift[j][k].push_back(ne[j][k]);
        }
        for(int l = 1; l < 13; l++) {
            for(int k = 0; k < v.size(); k++) {
                lift[j][k].push_back(-1);
                if(lift[j][k][l-1] == -1) lift[j][k][l] = -1;
                else lift[j][k][l] = lift[j][lift[j][k][l-1]][l-1];
            }
            if(lift[j].back()[l] == -1) break;
        }
    }
    cout << (ll)f(0, n) << '\n';
}

Compilation message

copypaste3.cpp: In function 'int main()':
copypaste3.cpp:91:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |     for(int j = 0; j < ne.size(); j++) {
      |                    ~~^~~~~~~~~~~
copypaste3.cpp:109:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  109 |         for(int k = 0; k < v.size(); k++) {
      |                        ~~^~~~~~~~~~
copypaste3.cpp:113:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  113 |             for(int k = 0; k < v.size(); k++) {
      |                            ~~^~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Execution timed out 3077 ms 171840 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 412 KB Output is correct
13 Correct 0 ms 468 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 680 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 724 KB Output is correct
26 Correct 1 ms 724 KB Output is correct
27 Correct 1 ms 596 KB Output is correct
28 Correct 1 ms 596 KB Output is correct
29 Correct 1 ms 724 KB Output is correct
30 Correct 1 ms 724 KB Output is correct
31 Correct 1 ms 724 KB Output is correct
32 Correct 1 ms 724 KB Output is correct
33 Correct 1 ms 724 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 596 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 412 KB Output is correct
13 Correct 0 ms 468 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 680 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 724 KB Output is correct
26 Correct 1 ms 724 KB Output is correct
27 Correct 1 ms 596 KB Output is correct
28 Correct 1 ms 596 KB Output is correct
29 Correct 1 ms 724 KB Output is correct
30 Correct 1 ms 724 KB Output is correct
31 Correct 1 ms 724 KB Output is correct
32 Correct 1 ms 724 KB Output is correct
33 Correct 1 ms 724 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 596 KB Output is correct
40 Correct 5 ms 2516 KB Output is correct
41 Correct 18 ms 3916 KB Output is correct
42 Correct 35 ms 12120 KB Output is correct
43 Correct 36 ms 12212 KB Output is correct
44 Correct 28 ms 12300 KB Output is correct
45 Correct 43 ms 12292 KB Output is correct
46 Correct 34 ms 12340 KB Output is correct
47 Correct 12 ms 5976 KB Output is correct
48 Correct 22 ms 9244 KB Output is correct
49 Correct 24 ms 10544 KB Output is correct
50 Correct 22 ms 10632 KB Output is correct
51 Correct 19 ms 9132 KB Output is correct
52 Correct 28 ms 9048 KB Output is correct
53 Correct 30 ms 12360 KB Output is correct

Subtask #5
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 412 KB Output is correct
13 Correct 0 ms 468 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 680 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 724 KB Output is correct
26 Correct 1 ms 724 KB Output is correct
27 Correct 1 ms 596 KB Output is correct
28 Correct 1 ms 596 KB Output is correct
29 Correct 1 ms 724 KB Output is correct
30 Correct 1 ms 724 KB Output is correct
31 Correct 1 ms 724 KB Output is correct
32 Correct 1 ms 724 KB Output is correct
33 Correct 1 ms 724 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 596 KB Output is correct
40 Correct 5 ms 2516 KB Output is correct
41 Correct 18 ms 3916 KB Output is correct
42 Correct 35 ms 12120 KB Output is correct
43 Correct 36 ms 12212 KB Output is correct
44 Correct 28 ms 12300 KB Output is correct
45 Correct 43 ms 12292 KB Output is correct
46 Correct 34 ms 12340 KB Output is correct
47 Correct 12 ms 5976 KB Output is correct
48 Correct 22 ms 9244 KB Output is correct
49 Correct 24 ms 10544 KB Output is correct
50 Correct 22 ms 10632 KB Output is correct
51 Correct 19 ms 9132 KB Output is correct
52 Correct 28 ms 9048 KB Output is correct
53 Correct 30 ms 12360 KB Output is correct
54 Correct 289 ms 73028 KB Output is correct
55 Correct 1890 ms 55408 KB Output is correct
56 Correct 2048 ms 534556 KB Output is correct
57 Correct 2070 ms 535376 KB Output is correct
58 Correct 2145 ms 535936 KB Output is correct
59 Correct 2094 ms 536240 KB Output is correct
60 Correct 2115 ms 536472 KB Output is correct
61 Correct 1497 ms 302640 KB Output is correct
62 Correct 1348 ms 58236 KB Output is correct
63 Correct 1989 ms 467860 KB Output is correct
64 Correct 1475 ms 475092 KB Output is correct
65 Correct 1921 ms 365220 KB Output is correct
66 Correct 989 ms 365292 KB Output is correct
67 Correct 1986 ms 536172 KB Output is correct

Subtask #6
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Execution timed out 3077 ms 171840 KB Time limit exceeded
14 Halted 0 ms 0 KB -