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답안 #933794

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
933794 2024-02-26T10:43:20 Z boris_mihov Copy and Paste 3 (JOI22_copypaste3) C++17
100 / 100
 1483 ms 452460 KB 
#include <algorithm>
#include <iostream>
#include <numeric>
#include <cassert>
#include <vector>
#include <map>

typedef long long llong;
const int MAXN = 2500 + 10;
const int ALPHABET = 26;
const int MOD2 = 998244353;
const int MOD = 1e9 + 7;
const int INF  = 1e9;

int n;
char s[MAXN];
int letter[MAXN][ALPHABET];
int fail[MAXN];

llong a, b, c;
int next[MAXN][MAXN];
llong dp[MAXN][MAXN];
llong cnt[MAXN][MAXN];
llong best[MAXN][MAXN];
std::vector <int> increase[MAXN][MAXN];
llong prefixHash[MAXN];
llong prefixHash2[MAXN];
llong base[MAXN];
llong base2[MAXN];

llong getHash(int l, int r)
{
    llong res = prefixHash[r] + MOD - ((prefixHash[l - 1] * base[r - l + 1]) % MOD);
    if (res >= MOD) res -= MOD;
    return res;
}

llong getHash2(int l, int r)
{
    llong res = prefixHash2[r] + MOD2 - ((prefixHash2[l - 1] * base2[r - l + 1]) % MOD2);
    if (res >= MOD2) res -= MOD2;
    return res;
}

void solve()
{
    base[0] = 1;
    base2[0] = 1;
    for (int i = 1 ; i <= n ; ++i)
    {
        base[i] = (base[i - 1] * 27) % MOD;
        base2[i] = (base2[i - 1] * 27) % MOD2;
    }

    for (int i = 1 ; i <= n ; ++i)
    {
        prefixHash[i] = prefixHash[i - 1] * 27;
        prefixHash[i] += s[i] - 'a' + 1;
        prefixHash[i] %= MOD;
    }

    for (int i = 1 ; i <= n ; ++i)
    {
        prefixHash2[i] = prefixHash2[i - 1] * 27;
        prefixHash2[i] += s[i] - 'a' + 1;
        prefixHash2[i] %= MOD2;
    }

    for (int len = 1 ; len <= n ; ++len)
    {
        std::map <std::pair <int,int> ,int> map;
        for (int pos = n - len + 1 ; pos >= 1 ; --pos)
        {
            int r = pos + len - 1;
            next[pos][r] = map[{getHash(pos, r), getHash2(pos, r)}];
            if (r + len - 1 <= n)
            {
                map[{getHash(r, r + len - 1), getHash2(r, r + len - 1)}] = r;
            }
        } 
    }

    for (int l = 1 ; l <= n ; ++l)
    {
        for (int r = l ; r <= n ; ++r)
        {
            int left = l;
            int len = r - l;
            do
            {
                increase[l][left + len].push_back(r);
                left = next[left][left + len];
            } while (left != 0);
        }
    }

    for (int len = 1 ; len <= n ; ++len)
    {
        for (int l = 1 ; l + len - 1 <= n ; ++l)
        {
            int r = l + len - 1;
            best[l][r] = best[l][r - 1];
            for (const int &idx : increase[l][r])
            {
                cnt[l][idx]++;
                if (cnt[l][idx] > 1)
                {
                    best[l][r] = std::max(best[l][r], cnt[l][idx] * (idx - l + 1) * a - b - c * cnt[l][idx] - dp[l][idx]);
                }
            }

            dp[l][r] = a * (r - l + 1) - best[l][r];
            if (len > 1)
            {
                dp[l][r] = std::min(dp[l][r], dp[l + 1][r] + a);
                dp[l][r] = std::min(dp[l][r], dp[l][r - 1] + a);
            }
        }
    }

    std::cout << dp[1][n] << '\n';
}

void input()
{
    std::cin >> n;
    std::cin >> s + 1;
    std::cin >> a >> b >> c;

    // for (int i = 1 ; i <= n ; ++i)
    // {
    //     if (i % 3 == 1) assert(s[i] == 'n');
    //     if (i % 3 == 2) assert(s[i] == 'q');
    //     if (i % 3 == 0) assert(s[i] == 'v');
    // }
}

void fastIOI()
{
    std::ios_base :: sync_with_stdio(0);
    std::cout.tie(nullptr);
    std::cin.tie(nullptr);
}

int main()
{
    fastIOI();
    input();
    solve();

    return 0;
}

Compilation message

copypaste3.cpp: In function 'void input()':
copypaste3.cpp:127:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  127 |     std::cin >> s + 1;
      |                 ~~^~~

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 154476 KB Output is correct
2 Correct 35 ms 154460 KB Output is correct
3 Correct 35 ms 154460 KB Output is correct
4 Correct 38 ms 154456 KB Output is correct
5 Correct 36 ms 154464 KB Output is correct
6 Correct 34 ms 154460 KB Output is correct
7 Correct 33 ms 154460 KB Output is correct
8 Correct 34 ms 154456 KB Output is correct
9 Correct 33 ms 154452 KB Output is correct
10 Correct 34 ms 154460 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 34 ms 154448 KB Output is correct
2 Correct 34 ms 154456 KB Output is correct
3 Correct 729 ms 329492 KB Output is correct
4 Correct 857 ms 356088 KB Output is correct
5 Correct 1027 ms 384448 KB Output is correct
6 Correct 1201 ms 417884 KB Output is correct
7 Correct 1483 ms 452372 KB Output is correct
8 Correct 1402 ms 452388 KB Output is correct
9 Correct 1405 ms 452460 KB Output is correct
10 Correct 33 ms 154352 KB Output is correct
11 Correct 34 ms 154452 KB Output is correct
12 Correct 34 ms 154456 KB Output is correct
13 Correct 34 ms 154484 KB Output is correct
14 Correct 34 ms 154508 KB Output is correct
15 Correct 37 ms 154568 KB Output is correct
16 Correct 34 ms 154456 KB Output is correct
17 Correct 38 ms 154448 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 154476 KB Output is correct
2 Correct 35 ms 154460 KB Output is correct
3 Correct 35 ms 154460 KB Output is correct
4 Correct 38 ms 154456 KB Output is correct
5 Correct 36 ms 154464 KB Output is correct
6 Correct 34 ms 154460 KB Output is correct
7 Correct 33 ms 154460 KB Output is correct
8 Correct 34 ms 154456 KB Output is correct
9 Correct 33 ms 154452 KB Output is correct
10 Correct 34 ms 154460 KB Output is correct
11 Correct 34 ms 154460 KB Output is correct
12 Correct 35 ms 154460 KB Output is correct
13 Correct 33 ms 154424 KB Output is correct
14 Correct 36 ms 154488 KB Output is correct
15 Correct 34 ms 154448 KB Output is correct
16 Correct 36 ms 154452 KB Output is correct
17 Correct 34 ms 154460 KB Output is correct
18 Correct 34 ms 154448 KB Output is correct
19 Correct 34 ms 154712 KB Output is correct
20 Correct 34 ms 154460 KB Output is correct
21 Correct 34 ms 154460 KB Output is correct
22 Correct 33 ms 154448 KB Output is correct
23 Correct 34 ms 154448 KB Output is correct
24 Correct 36 ms 154460 KB Output is correct
25 Correct 34 ms 154452 KB Output is correct
26 Correct 34 ms 154460 KB Output is correct
27 Correct 37 ms 154456 KB Output is correct
28 Correct 33 ms 154596 KB Output is correct
29 Correct 34 ms 154388 KB Output is correct
30 Correct 35 ms 154712 KB Output is correct
31 Correct 34 ms 154460 KB Output is correct
32 Correct 34 ms 154380 KB Output is correct
33 Correct 34 ms 154456 KB Output is correct
34 Correct 34 ms 154716 KB Output is correct
35 Correct 35 ms 154464 KB Output is correct
36 Correct 33 ms 154468 KB Output is correct
37 Correct 35 ms 154456 KB Output is correct
38 Correct 38 ms 154496 KB Output is correct
39 Correct 34 ms 154460 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 154476 KB Output is correct
2 Correct 35 ms 154460 KB Output is correct
3 Correct 35 ms 154460 KB Output is correct
4 Correct 38 ms 154456 KB Output is correct
5 Correct 36 ms 154464 KB Output is correct
6 Correct 34 ms 154460 KB Output is correct
7 Correct 33 ms 154460 KB Output is correct
8 Correct 34 ms 154456 KB Output is correct
9 Correct 33 ms 154452 KB Output is correct
10 Correct 34 ms 154460 KB Output is correct
11 Correct 34 ms 154460 KB Output is correct
12 Correct 35 ms 154460 KB Output is correct
13 Correct 33 ms 154424 KB Output is correct
14 Correct 36 ms 154488 KB Output is correct
15 Correct 34 ms 154448 KB Output is correct
16 Correct 36 ms 154452 KB Output is correct
17 Correct 34 ms 154460 KB Output is correct
18 Correct 34 ms 154448 KB Output is correct
19 Correct 34 ms 154712 KB Output is correct
20 Correct 34 ms 154460 KB Output is correct
21 Correct 34 ms 154460 KB Output is correct
22 Correct 33 ms 154448 KB Output is correct
23 Correct 34 ms 154448 KB Output is correct
24 Correct 36 ms 154460 KB Output is correct
25 Correct 34 ms 154452 KB Output is correct
26 Correct 34 ms 154460 KB Output is correct
27 Correct 37 ms 154456 KB Output is correct
28 Correct 33 ms 154596 KB Output is correct
29 Correct 34 ms 154388 KB Output is correct
30 Correct 35 ms 154712 KB Output is correct
31 Correct 34 ms 154460 KB Output is correct
32 Correct 34 ms 154380 KB Output is correct
33 Correct 34 ms 154456 KB Output is correct
34 Correct 34 ms 154716 KB Output is correct
35 Correct 35 ms 154464 KB Output is correct
36 Correct 33 ms 154468 KB Output is correct
37 Correct 35 ms 154456 KB Output is correct
38 Correct 38 ms 154496 KB Output is correct
39 Correct 34 ms 154460 KB Output is correct
40 Correct 34 ms 154716 KB Output is correct
41 Correct 41 ms 162640 KB Output is correct
42 Correct 40 ms 162644 KB Output is correct
43 Correct 43 ms 162644 KB Output is correct
44 Correct 40 ms 162652 KB Output is correct
45 Correct 40 ms 162652 KB Output is correct
46 Correct 38 ms 162608 KB Output is correct
47 Correct 40 ms 162644 KB Output is correct
48 Correct 39 ms 162412 KB Output is correct
49 Correct 42 ms 162440 KB Output is correct
50 Correct 40 ms 162640 KB Output is correct
51 Correct 39 ms 162640 KB Output is correct
52 Correct 44 ms 162644 KB Output is correct
53 Correct 39 ms 162536 KB Output is correct

Subtask #5
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 154476 KB Output is correct
2 Correct 35 ms 154460 KB Output is correct
3 Correct 35 ms 154460 KB Output is correct
4 Correct 38 ms 154456 KB Output is correct
5 Correct 36 ms 154464 KB Output is correct
6 Correct 34 ms 154460 KB Output is correct
7 Correct 33 ms 154460 KB Output is correct
8 Correct 34 ms 154456 KB Output is correct
9 Correct 33 ms 154452 KB Output is correct
10 Correct 34 ms 154460 KB Output is correct
11 Correct 34 ms 154460 KB Output is correct
12 Correct 35 ms 154460 KB Output is correct
13 Correct 33 ms 154424 KB Output is correct
14 Correct 36 ms 154488 KB Output is correct
15 Correct 34 ms 154448 KB Output is correct
16 Correct 36 ms 154452 KB Output is correct
17 Correct 34 ms 154460 KB Output is correct
18 Correct 34 ms 154448 KB Output is correct
19 Correct 34 ms 154712 KB Output is correct
20 Correct 34 ms 154460 KB Output is correct
21 Correct 34 ms 154460 KB Output is correct
22 Correct 33 ms 154448 KB Output is correct
23 Correct 34 ms 154448 KB Output is correct
24 Correct 36 ms 154460 KB Output is correct
25 Correct 34 ms 154452 KB Output is correct
26 Correct 34 ms 154460 KB Output is correct
27 Correct 37 ms 154456 KB Output is correct
28 Correct 33 ms 154596 KB Output is correct
29 Correct 34 ms 154388 KB Output is correct
30 Correct 35 ms 154712 KB Output is correct
31 Correct 34 ms 154460 KB Output is correct
32 Correct 34 ms 154380 KB Output is correct
33 Correct 34 ms 154456 KB Output is correct
34 Correct 34 ms 154716 KB Output is correct
35 Correct 35 ms 154464 KB Output is correct
36 Correct 33 ms 154468 KB Output is correct
37 Correct 35 ms 154456 KB Output is correct
38 Correct 38 ms 154496 KB Output is correct
39 Correct 34 ms 154460 KB Output is correct
40 Correct 34 ms 154716 KB Output is correct
41 Correct 41 ms 162640 KB Output is correct
42 Correct 40 ms 162644 KB Output is correct
43 Correct 43 ms 162644 KB Output is correct
44 Correct 40 ms 162652 KB Output is correct
45 Correct 40 ms 162652 KB Output is correct
46 Correct 38 ms 162608 KB Output is correct
47 Correct 40 ms 162644 KB Output is correct
48 Correct 39 ms 162412 KB Output is correct
49 Correct 42 ms 162440 KB Output is correct
50 Correct 40 ms 162640 KB Output is correct
51 Correct 39 ms 162640 KB Output is correct
52 Correct 44 ms 162644 KB Output is correct
53 Correct 39 ms 162536 KB Output is correct
54 Correct 63 ms 174164 KB Output is correct
55 Correct 225 ms 219732 KB Output is correct
56 Correct 178 ms 211736 KB Output is correct
57 Correct 171 ms 211540 KB Output is correct
58 Correct 162 ms 211540 KB Output is correct
59 Correct 160 ms 211396 KB Output is correct
60 Correct 157 ms 211828 KB Output is correct
61 Correct 157 ms 211608 KB Output is correct
62 Correct 191 ms 217116 KB Output is correct
63 Correct 165 ms 211576 KB Output is correct
64 Correct 175 ms 211536 KB Output is correct
65 Correct 193 ms 212844 KB Output is correct
66 Correct 190 ms 212744 KB Output is correct
67 Correct 157 ms 211416 KB Output is correct

Subtask #6
38.0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 154476 KB Output is correct
2 Correct 35 ms 154460 KB Output is correct
3 Correct 35 ms 154460 KB Output is correct
4 Correct 38 ms 154456 KB Output is correct
5 Correct 36 ms 154464 KB Output is correct
6 Correct 34 ms 154460 KB Output is correct
7 Correct 33 ms 154460 KB Output is correct
8 Correct 34 ms 154456 KB Output is correct
9 Correct 33 ms 154452 KB Output is correct
10 Correct 34 ms 154460 KB Output is correct
11 Correct 34 ms 154448 KB Output is correct
12 Correct 34 ms 154456 KB Output is correct
13 Correct 729 ms 329492 KB Output is correct
14 Correct 857 ms 356088 KB Output is correct
15 Correct 1027 ms 384448 KB Output is correct
16 Correct 1201 ms 417884 KB Output is correct
17 Correct 1483 ms 452372 KB Output is correct
18 Correct 1402 ms 452388 KB Output is correct
19 Correct 1405 ms 452460 KB Output is correct
20 Correct 33 ms 154352 KB Output is correct
21 Correct 34 ms 154452 KB Output is correct
22 Correct 34 ms 154456 KB Output is correct
23 Correct 34 ms 154484 KB Output is correct
24 Correct 34 ms 154508 KB Output is correct
25 Correct 37 ms 154568 KB Output is correct
26 Correct 34 ms 154456 KB Output is correct
27 Correct 38 ms 154448 KB Output is correct
28 Correct 34 ms 154460 KB Output is correct
29 Correct 35 ms 154460 KB Output is correct
30 Correct 33 ms 154424 KB Output is correct
31 Correct 36 ms 154488 KB Output is correct
32 Correct 34 ms 154448 KB Output is correct
33 Correct 36 ms 154452 KB Output is correct
34 Correct 34 ms 154460 KB Output is correct
35 Correct 34 ms 154448 KB Output is correct
36 Correct 34 ms 154712 KB Output is correct
37 Correct 34 ms 154460 KB Output is correct
38 Correct 34 ms 154460 KB Output is correct
39 Correct 33 ms 154448 KB Output is correct
40 Correct 34 ms 154448 KB Output is correct
41 Correct 36 ms 154460 KB Output is correct
42 Correct 34 ms 154452 KB Output is correct
43 Correct 34 ms 154460 KB Output is correct
44 Correct 37 ms 154456 KB Output is correct
45 Correct 33 ms 154596 KB Output is correct
46 Correct 34 ms 154388 KB Output is correct
47 Correct 35 ms 154712 KB Output is correct
48 Correct 34 ms 154460 KB Output is correct
49 Correct 34 ms 154380 KB Output is correct
50 Correct 34 ms 154456 KB Output is correct
51 Correct 34 ms 154716 KB Output is correct
52 Correct 35 ms 154464 KB Output is correct
53 Correct 33 ms 154468 KB Output is correct
54 Correct 35 ms 154456 KB Output is correct
55 Correct 38 ms 154496 KB Output is correct
56 Correct 34 ms 154460 KB Output is correct
57 Correct 34 ms 154716 KB Output is correct
58 Correct 41 ms 162640 KB Output is correct
59 Correct 40 ms 162644 KB Output is correct
60 Correct 43 ms 162644 KB Output is correct
61 Correct 40 ms 162652 KB Output is correct
62 Correct 40 ms 162652 KB Output is correct
63 Correct 38 ms 162608 KB Output is correct
64 Correct 40 ms 162644 KB Output is correct
65 Correct 39 ms 162412 KB Output is correct
66 Correct 42 ms 162440 KB Output is correct
67 Correct 40 ms 162640 KB Output is correct
68 Correct 39 ms 162640 KB Output is correct
69 Correct 44 ms 162644 KB Output is correct
70 Correct 39 ms 162536 KB Output is correct
71 Correct 63 ms 174164 KB Output is correct
72 Correct 225 ms 219732 KB Output is correct
73 Correct 178 ms 211736 KB Output is correct
74 Correct 171 ms 211540 KB Output is correct
75 Correct 162 ms 211540 KB Output is correct
76 Correct 160 ms 211396 KB Output is correct
77 Correct 157 ms 211828 KB Output is correct
78 Correct 157 ms 211608 KB Output is correct
79 Correct 191 ms 217116 KB Output is correct
80 Correct 165 ms 211576 KB Output is correct
81 Correct 175 ms 211536 KB Output is correct
82 Correct 193 ms 212844 KB Output is correct
83 Correct 190 ms 212744 KB Output is correct
84 Correct 157 ms 211416 KB Output is correct
85 Correct 411 ms 269320 KB Output is correct
86 Correct 989 ms 387380 KB Output is correct
87 Correct 933 ms 387168 KB Output is correct
88 Correct 888 ms 387396 KB Output is correct
89 Correct 873 ms 387264 KB Output is correct
90 Correct 871 ms 387276 KB Output is correct
91 Correct 944 ms 397780 KB Output is correct
92 Correct 1130 ms 416732 KB Output is correct
93 Correct 899 ms 387400 KB Output is correct
94 Correct 1029 ms 387424 KB Output is correct
95 Correct 1258 ms 404560 KB Output is correct
96 Correct 1236 ms 404488 KB Output is correct
97 Correct 860 ms 387208 KB Output is correct