oj.uz

Submission #1060894

# Submission time Handle Problem Language Result Execution time Memory
1060894 2024-08-16T04:11:19 Z sleepntsheep Copy and Paste 3 (JOI22_copypaste3) C++17
57 / 100
 3000 ms 314736 KB 
#pragma GCC optimize("O3,unroll-loops")

#include <iostream>
#include <map>
#include <cstring>
#include <vector>
#include <algorithm>
using namespace std;
using ll = long long;
template <typename T>
using ve = vector<T>;

const int N = 2001;
const ll B = 137, M = 1000000007,
      B2 = 141, M2 = 1000000009;

int n;
ll dp[N][N], a, b, c;
char s[N];

ll hs[N], bp[N], ibp[N], bp2[N], ibp2[N], hs2[N];

ll bpow(ll a, ll b, ll m) {
    if (!b) return 1;
    ll r { bpow(a, b / 2, m) };
    if (b & 1) return r * r % m * a % m;
    return r * r % m;
}

void do_hash() {
    bp[0] = ibp[0] = bp2[0] = ibp2[0] = 1;
    for (int i = 1; i <= n; ++i) bp[i] = bp[i - 1] * B % M, ibp[i] = bpow(bp[i], M - 2, M);
    for (int i = 1; i <= n; ++i) hs[i] = bp[i] * (s[i] - 'a' + 1) % M, hs[i] = (hs[i] + hs[i - 1]) % M;

    for (int i = 1; i <= n; ++i) bp2[i] = bp2[i - 1] * B2 % M2, ibp2[i] = bpow(bp2[i], M2 - 2, M2);
    for (int i = 1; i <= n; ++i) hs2[i] = bp2[i] * (s[i] - 'a' + 1) % M2, hs2[i] = (hs2[i] + hs2[i - 1]) % M2;
}

pair<ll, ll> get_hash(int l, int r) {
    return {ibp[l] * (hs[r] - hs[l - 1] + M) % M, ibp2[l] * (hs2[r] - hs2[l - 1] + M2) % M2};
}

map<pair<ll, ll>, ve<int>> oo, op[N];

void init() {
    do_hash();
    memset(dp, 63, sizeof dp);

    for (int i = 1; i <= n; ++i) {
        dp[i][i] = a;
        for (int j = i; j <= n; ++j) 
            oo[get_hash(i, j)].push_back(i);
    }

    for (int i = 1; i <= n; ++i) {
        for (int j = i; j <= n; ++j) {
            auto x = get_hash(i, j);
            auto &v = oo[x];
            auto it = lower_bound(v.begin(), v.end(), i);
            while (it != v.end()) {
                op[i][x].push_back(*it);
                it = lower_bound(v.begin(), v.end(), *it + j - i + 1);
            }
        }
    }
}

int main() {
    scanf("%d%s%lld%lld%lld", &n, s + 1, &a, &b, &c);

    init();

    for (int l = 1; l <= n; ++l) {
        for (int i = 1, j = l; j <= n; ++i, ++j) {
            if (i < j) dp[i][j] = min(dp[i][j], dp[i + 1][j] + a);
            if (j > i) dp[i][j] = min(dp[i][j], dp[i][j - 1] + a);
            auto x = get_hash(i, j);

            auto &oc = op[i][x];
            auto it = lower_bound(oc.begin(), oc.end(), i);
            int cnt = 1;
            for (; it != oc.end(); ++it, ++cnt) {
                int jj = *it + l - 1;
                dp[i][jj] = min(dp[i][jj], dp[i][j] + b + cnt * c + (jj - i + 1 - cnt * l) * a);
            }
        }
    }

    printf("%lld", dp[1][n]);
}

Compilation message

copypaste3.cpp: In function 'int main()':
copypaste3.cpp:69:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   69 |     scanf("%d%s%lld%lld%lld", &n, s + 1, &a, &b, &c);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 31832 KB Output is correct
2 Correct 4 ms 31836 KB Output is correct
3 Correct 3 ms 31836 KB Output is correct
4 Correct 3 ms 31836 KB Output is correct
5 Correct 4 ms 31836 KB Output is correct
6 Correct 4 ms 31880 KB Output is correct
7 Correct 3 ms 31828 KB Output is correct
8 Correct 4 ms 31836 KB Output is correct
9 Correct 3 ms 31836 KB Output is correct
10 Correct 3 ms 31836 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 31836 KB Output is correct
2 Correct 4 ms 31836 KB Output is correct
3 Correct 2472 ms 273740 KB Output is correct
4 Execution timed out 3004 ms 314736 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 31832 KB Output is correct
2 Correct 4 ms 31836 KB Output is correct
3 Correct 3 ms 31836 KB Output is correct
4 Correct 3 ms 31836 KB Output is correct
5 Correct 4 ms 31836 KB Output is correct
6 Correct 4 ms 31880 KB Output is correct
7 Correct 3 ms 31828 KB Output is correct
8 Correct 4 ms 31836 KB Output is correct
9 Correct 3 ms 31836 KB Output is correct
10 Correct 3 ms 31836 KB Output is correct
11 Correct 4 ms 31832 KB Output is correct
12 Correct 4 ms 31836 KB Output is correct
13 Correct 4 ms 31836 KB Output is correct
14 Correct 4 ms 31836 KB Output is correct
15 Correct 4 ms 31836 KB Output is correct
16 Correct 3 ms 31836 KB Output is correct
17 Correct 4 ms 31836 KB Output is correct
18 Correct 3 ms 31832 KB Output is correct
19 Correct 4 ms 31836 KB Output is correct
20 Correct 3 ms 31836 KB Output is correct
21 Correct 4 ms 31832 KB Output is correct
22 Correct 4 ms 31820 KB Output is correct
23 Correct 4 ms 31836 KB Output is correct
24 Correct 4 ms 31824 KB Output is correct
25 Correct 4 ms 31836 KB Output is correct
26 Correct 4 ms 31836 KB Output is correct
27 Correct 4 ms 31872 KB Output is correct
28 Correct 4 ms 31836 KB Output is correct
29 Correct 4 ms 31836 KB Output is correct
30 Correct 5 ms 31808 KB Output is correct
31 Correct 4 ms 31836 KB Output is correct
32 Correct 4 ms 31832 KB Output is correct
33 Correct 4 ms 31836 KB Output is correct
34 Correct 3 ms 31836 KB Output is correct
35 Correct 4 ms 31836 KB Output is correct
36 Correct 4 ms 31836 KB Output is correct
37 Correct 4 ms 31824 KB Output is correct
38 Correct 3 ms 31804 KB Output is correct
39 Correct 4 ms 31836 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 31832 KB Output is correct
2 Correct 4 ms 31836 KB Output is correct
3 Correct 3 ms 31836 KB Output is correct
4 Correct 3 ms 31836 KB Output is correct
5 Correct 4 ms 31836 KB Output is correct
6 Correct 4 ms 31880 KB Output is correct
7 Correct 3 ms 31828 KB Output is correct
8 Correct 4 ms 31836 KB Output is correct
9 Correct 3 ms 31836 KB Output is correct
10 Correct 3 ms 31836 KB Output is correct
11 Correct 4 ms 31832 KB Output is correct
12 Correct 4 ms 31836 KB Output is correct
13 Correct 4 ms 31836 KB Output is correct
14 Correct 4 ms 31836 KB Output is correct
15 Correct 4 ms 31836 KB Output is correct
16 Correct 3 ms 31836 KB Output is correct
17 Correct 4 ms 31836 KB Output is correct
18 Correct 3 ms 31832 KB Output is correct
19 Correct 4 ms 31836 KB Output is correct
20 Correct 3 ms 31836 KB Output is correct
21 Correct 4 ms 31832 KB Output is correct
22 Correct 4 ms 31820 KB Output is correct
23 Correct 4 ms 31836 KB Output is correct
24 Correct 4 ms 31824 KB Output is correct
25 Correct 4 ms 31836 KB Output is correct
26 Correct 4 ms 31836 KB Output is correct
27 Correct 4 ms 31872 KB Output is correct
28 Correct 4 ms 31836 KB Output is correct
29 Correct 4 ms 31836 KB Output is correct
30 Correct 5 ms 31808 KB Output is correct
31 Correct 4 ms 31836 KB Output is correct
32 Correct 4 ms 31832 KB Output is correct
33 Correct 4 ms 31836 KB Output is correct
34 Correct 3 ms 31836 KB Output is correct
35 Correct 4 ms 31836 KB Output is correct
36 Correct 4 ms 31836 KB Output is correct
37 Correct 4 ms 31824 KB Output is correct
38 Correct 3 ms 31804 KB Output is correct
39 Correct 4 ms 31836 KB Output is correct
40 Correct 5 ms 32604 KB Output is correct
41 Correct 15 ms 34396 KB Output is correct
42 Correct 21 ms 36284 KB Output is correct
43 Correct 17 ms 36196 KB Output is correct
44 Correct 17 ms 36188 KB Output is correct
45 Correct 18 ms 36188 KB Output is correct
46 Correct 23 ms 36060 KB Output is correct
47 Correct 17 ms 34652 KB Output is correct
48 Correct 22 ms 35264 KB Output is correct
49 Correct 18 ms 35676 KB Output is correct
50 Correct 18 ms 35676 KB Output is correct
51 Correct 17 ms 35376 KB Output is correct
52 Correct 17 ms 35164 KB Output is correct
53 Correct 19 ms 36188 KB Output is correct

Subtask #5
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 31832 KB Output is correct
2 Correct 4 ms 31836 KB Output is correct
3 Correct 3 ms 31836 KB Output is correct
4 Correct 3 ms 31836 KB Output is correct
5 Correct 4 ms 31836 KB Output is correct
6 Correct 4 ms 31880 KB Output is correct
7 Correct 3 ms 31828 KB Output is correct
8 Correct 4 ms 31836 KB Output is correct
9 Correct 3 ms 31836 KB Output is correct
10 Correct 3 ms 31836 KB Output is correct
11 Correct 4 ms 31832 KB Output is correct
12 Correct 4 ms 31836 KB Output is correct
13 Correct 4 ms 31836 KB Output is correct
14 Correct 4 ms 31836 KB Output is correct
15 Correct 4 ms 31836 KB Output is correct
16 Correct 3 ms 31836 KB Output is correct
17 Correct 4 ms 31836 KB Output is correct
18 Correct 3 ms 31832 KB Output is correct
19 Correct 4 ms 31836 KB Output is correct
20 Correct 3 ms 31836 KB Output is correct
21 Correct 4 ms 31832 KB Output is correct
22 Correct 4 ms 31820 KB Output is correct
23 Correct 4 ms 31836 KB Output is correct
24 Correct 4 ms 31824 KB Output is correct
25 Correct 4 ms 31836 KB Output is correct
26 Correct 4 ms 31836 KB Output is correct
27 Correct 4 ms 31872 KB Output is correct
28 Correct 4 ms 31836 KB Output is correct
29 Correct 4 ms 31836 KB Output is correct
30 Correct 5 ms 31808 KB Output is correct
31 Correct 4 ms 31836 KB Output is correct
32 Correct 4 ms 31832 KB Output is correct
33 Correct 4 ms 31836 KB Output is correct
34 Correct 3 ms 31836 KB Output is correct
35 Correct 4 ms 31836 KB Output is correct
36 Correct 4 ms 31836 KB Output is correct
37 Correct 4 ms 31824 KB Output is correct
38 Correct 3 ms 31804 KB Output is correct
39 Correct 4 ms 31836 KB Output is correct
40 Correct 5 ms 32604 KB Output is correct
41 Correct 15 ms 34396 KB Output is correct
42 Correct 21 ms 36284 KB Output is correct
43 Correct 17 ms 36196 KB Output is correct
44 Correct 17 ms 36188 KB Output is correct
45 Correct 18 ms 36188 KB Output is correct
46 Correct 23 ms 36060 KB Output is correct
47 Correct 17 ms 34652 KB Output is correct
48 Correct 22 ms 35264 KB Output is correct
49 Correct 18 ms 35676 KB Output is correct
50 Correct 18 ms 35676 KB Output is correct
51 Correct 17 ms 35376 KB Output is correct
52 Correct 17 ms 35164 KB Output is correct
53 Correct 19 ms 36188 KB Output is correct
54 Correct 106 ms 53964 KB Output is correct
55 Correct 646 ms 102224 KB Output is correct
56 Correct 891 ms 142932 KB Output is correct
57 Correct 936 ms 142300 KB Output is correct
58 Correct 867 ms 141652 KB Output is correct
59 Correct 921 ms 141560 KB Output is correct
60 Correct 893 ms 141392 KB Output is correct
61 Correct 709 ms 110160 KB Output is correct
62 Correct 589 ms 100184 KB Output is correct
63 Correct 811 ms 127824 KB Output is correct
64 Correct 851 ms 129324 KB Output is correct
65 Correct 889 ms 118808 KB Output is correct
66 Correct 873 ms 118716 KB Output is correct
67 Correct 925 ms 141396 KB Output is correct

Subtask #6
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 31832 KB Output is correct
2 Correct 4 ms 31836 KB Output is correct
3 Correct 3 ms 31836 KB Output is correct
4 Correct 3 ms 31836 KB Output is correct
5 Correct 4 ms 31836 KB Output is correct
6 Correct 4 ms 31880 KB Output is correct
7 Correct 3 ms 31828 KB Output is correct
8 Correct 4 ms 31836 KB Output is correct
9 Correct 3 ms 31836 KB Output is correct
10 Correct 3 ms 31836 KB Output is correct
11 Correct 3 ms 31836 KB Output is correct
12 Correct 4 ms 31836 KB Output is correct
13 Correct 2472 ms 273740 KB Output is correct
14 Execution timed out 3004 ms 314736 KB Time limit exceeded
15 Halted 0 ms 0 KB -