#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MX=2505;
int N, A, B, C;
string s;
ll dp[MX][MX];
const ll P=1e9+409, mod=2e9-223;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
ll hsh[MX][MX], pw[MX], key[MX];
int nxt[MX][MX];
vector<pair<ll,ll>> v[MX];
int main() {
cin.tie(0); ios_base::sync_with_stdio(0);
for(int i=0;i<MX;i++)
for(int j=i;j<MX;j++)
dp[i][j]=2e18;
pw[0]=1;
for(int i=1;i<MX;i++) pw[i]=pw[i-1]*P%mod;
cin>>N;
cin>>s;
cin>>A>>B>>C;
s='#'+s;
for(int c=0;c<26;c++) key[c]=rng()%mod;
for(int l=1;l<=N;l++) {
for(int r=l;r<=N;r++) {
int p=r-l+1;
hsh[l][r]=hsh[l][r-1]+pw[p]*(key[s[r]-'a'])%mod;
hsh[l][r]%=mod;
v[p].push_back({hsh[l][r],l});
}
}
for(int i=1;i<=N;i++) {
sort(v[i].begin(),v[i].end());
int k=0;
for(int j=0;j<v[i].size();j++) {
if(k<j) k++;
while(k<v[i].size() && v[i][k+1].first==v[i][k].first
&& v[i][k].second<v[i][j].second+i) {
k++;
}
if(k>=v[i].size()) {
nxt[v[i][j].second][v[i][j].second+i-1]= -1;
continue;
}
if(v[i][k].second<v[i][j].second+i) {
nxt[v[i][j].second][v[i][j].second+i-1]= -1;
continue;
}
nxt[v[i][j].second][v[i][j].second+i-1]=v[i][k].second;
}
}
for(int l=N;l>0;l--) {
for(int r=l;r<=N;r++) {
dp[l][r]=min(dp[l][r],dp[l][r-1]+A);
ll k=nxt[l][r], p=r-l+1, z=1;
while(k!=-1) {
z++;
ll len=k+p-1-l+1;
dp[l][k+p-1]=min(dp[l][k+p-1],dp[l][r]+z*C+B+(len-p*z)*A);
k=nxt[k][k+p-1];
}
dp[l-1][r]=min(dp[l-1][r],dp[l][r]+A);
}
}
cout<<dp[1][N]<<'\n';
}
Compilation message
copypaste3.cpp: In function 'int main()':
copypaste3.cpp:53:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
53 | for(int j=0;j<v[i].size();j++) {
| ~^~~~~~~~~~~~
copypaste3.cpp:56:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
56 | while(k<v[i].size() && v[i][k+1].first==v[i][k].first
| ~^~~~~~~~~~~~
copypaste3.cpp:60:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
60 | if(k>=v[i].size()) {
| ~^~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
43352 KB |
Output is correct |
2 |
Correct |
9 ms |
42332 KB |
Output is correct |
3 |
Correct |
7 ms |
42320 KB |
Output is correct |
4 |
Correct |
9 ms |
43292 KB |
Output is correct |
5 |
Correct |
8 ms |
43356 KB |
Output is correct |
6 |
Correct |
8 ms |
43340 KB |
Output is correct |
7 |
Correct |
7 ms |
42332 KB |
Output is correct |
8 |
Correct |
7 ms |
42332 KB |
Output is correct |
9 |
Correct |
7 ms |
42332 KB |
Output is correct |
10 |
Correct |
7 ms |
43356 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
42328 KB |
Output is correct |
2 |
Correct |
7 ms |
43352 KB |
Output is correct |
3 |
Correct |
196 ms |
111700 KB |
Output is correct |
4 |
Correct |
221 ms |
119452 KB |
Output is correct |
5 |
Correct |
304 ms |
131764 KB |
Output is correct |
6 |
Correct |
332 ms |
146720 KB |
Output is correct |
7 |
Correct |
401 ms |
160592 KB |
Output is correct |
8 |
Correct |
412 ms |
161332 KB |
Output is correct |
9 |
Correct |
408 ms |
161544 KB |
Output is correct |
10 |
Correct |
7 ms |
42328 KB |
Output is correct |
11 |
Correct |
7 ms |
43352 KB |
Output is correct |
12 |
Correct |
7 ms |
43356 KB |
Output is correct |
13 |
Correct |
8 ms |
43356 KB |
Output is correct |
14 |
Correct |
7 ms |
43356 KB |
Output is correct |
15 |
Correct |
7 ms |
42332 KB |
Output is correct |
16 |
Correct |
7 ms |
43608 KB |
Output is correct |
17 |
Correct |
9 ms |
43352 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
43352 KB |
Output is correct |
2 |
Correct |
9 ms |
42332 KB |
Output is correct |
3 |
Correct |
7 ms |
42320 KB |
Output is correct |
4 |
Correct |
9 ms |
43292 KB |
Output is correct |
5 |
Correct |
8 ms |
43356 KB |
Output is correct |
6 |
Correct |
8 ms |
43340 KB |
Output is correct |
7 |
Correct |
7 ms |
42332 KB |
Output is correct |
8 |
Correct |
7 ms |
42332 KB |
Output is correct |
9 |
Correct |
7 ms |
42332 KB |
Output is correct |
10 |
Correct |
7 ms |
43356 KB |
Output is correct |
11 |
Correct |
9 ms |
42332 KB |
Output is correct |
12 |
Correct |
7 ms |
43356 KB |
Output is correct |
13 |
Correct |
8 ms |
43352 KB |
Output is correct |
14 |
Correct |
7 ms |
43356 KB |
Output is correct |
15 |
Correct |
8 ms |
43356 KB |
Output is correct |
16 |
Correct |
7 ms |
43536 KB |
Output is correct |
17 |
Correct |
7 ms |
42332 KB |
Output is correct |
18 |
Correct |
7 ms |
43356 KB |
Output is correct |
19 |
Correct |
7 ms |
43356 KB |
Output is correct |
20 |
Correct |
7 ms |
42328 KB |
Output is correct |
21 |
Correct |
7 ms |
43608 KB |
Output is correct |
22 |
Correct |
7 ms |
43612 KB |
Output is correct |
23 |
Correct |
7 ms |
43612 KB |
Output is correct |
24 |
Correct |
7 ms |
43612 KB |
Output is correct |
25 |
Correct |
7 ms |
42588 KB |
Output is correct |
26 |
Correct |
8 ms |
43612 KB |
Output is correct |
27 |
Correct |
7 ms |
43612 KB |
Output is correct |
28 |
Correct |
7 ms |
42588 KB |
Output is correct |
29 |
Correct |
7 ms |
43612 KB |
Output is correct |
30 |
Correct |
7 ms |
43612 KB |
Output is correct |
31 |
Correct |
7 ms |
42588 KB |
Output is correct |
32 |
Correct |
7 ms |
43612 KB |
Output is correct |
33 |
Correct |
7 ms |
42588 KB |
Output is correct |
34 |
Correct |
8 ms |
43356 KB |
Output is correct |
35 |
Correct |
8 ms |
43356 KB |
Output is correct |
36 |
Correct |
9 ms |
43356 KB |
Output is correct |
37 |
Correct |
7 ms |
42332 KB |
Output is correct |
38 |
Correct |
8 ms |
43360 KB |
Output is correct |
39 |
Correct |
7 ms |
43580 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
43352 KB |
Output is correct |
2 |
Correct |
9 ms |
42332 KB |
Output is correct |
3 |
Correct |
7 ms |
42320 KB |
Output is correct |
4 |
Correct |
9 ms |
43292 KB |
Output is correct |
5 |
Correct |
8 ms |
43356 KB |
Output is correct |
6 |
Correct |
8 ms |
43340 KB |
Output is correct |
7 |
Correct |
7 ms |
42332 KB |
Output is correct |
8 |
Correct |
7 ms |
42332 KB |
Output is correct |
9 |
Correct |
7 ms |
42332 KB |
Output is correct |
10 |
Correct |
7 ms |
43356 KB |
Output is correct |
11 |
Correct |
9 ms |
42332 KB |
Output is correct |
12 |
Correct |
7 ms |
43356 KB |
Output is correct |
13 |
Correct |
8 ms |
43352 KB |
Output is correct |
14 |
Correct |
7 ms |
43356 KB |
Output is correct |
15 |
Correct |
8 ms |
43356 KB |
Output is correct |
16 |
Correct |
7 ms |
43536 KB |
Output is correct |
17 |
Correct |
7 ms |
42332 KB |
Output is correct |
18 |
Correct |
7 ms |
43356 KB |
Output is correct |
19 |
Correct |
7 ms |
43356 KB |
Output is correct |
20 |
Correct |
7 ms |
42328 KB |
Output is correct |
21 |
Correct |
7 ms |
43608 KB |
Output is correct |
22 |
Correct |
7 ms |
43612 KB |
Output is correct |
23 |
Correct |
7 ms |
43612 KB |
Output is correct |
24 |
Correct |
7 ms |
43612 KB |
Output is correct |
25 |
Correct |
7 ms |
42588 KB |
Output is correct |
26 |
Correct |
8 ms |
43612 KB |
Output is correct |
27 |
Correct |
7 ms |
43612 KB |
Output is correct |
28 |
Correct |
7 ms |
42588 KB |
Output is correct |
29 |
Correct |
7 ms |
43612 KB |
Output is correct |
30 |
Correct |
7 ms |
43612 KB |
Output is correct |
31 |
Correct |
7 ms |
42588 KB |
Output is correct |
32 |
Correct |
7 ms |
43612 KB |
Output is correct |
33 |
Correct |
7 ms |
42588 KB |
Output is correct |
34 |
Correct |
8 ms |
43356 KB |
Output is correct |
35 |
Correct |
8 ms |
43356 KB |
Output is correct |
36 |
Correct |
9 ms |
43356 KB |
Output is correct |
37 |
Correct |
7 ms |
42332 KB |
Output is correct |
38 |
Correct |
8 ms |
43360 KB |
Output is correct |
39 |
Correct |
7 ms |
43580 KB |
Output is correct |
40 |
Correct |
8 ms |
43100 KB |
Output is correct |
41 |
Correct |
10 ms |
44588 KB |
Output is correct |
42 |
Correct |
9 ms |
45660 KB |
Output is correct |
43 |
Correct |
9 ms |
45660 KB |
Output is correct |
44 |
Correct |
9 ms |
44632 KB |
Output is correct |
45 |
Correct |
9 ms |
44632 KB |
Output is correct |
46 |
Correct |
10 ms |
45912 KB |
Output is correct |
47 |
Correct |
12 ms |
44888 KB |
Output is correct |
48 |
Correct |
11 ms |
45620 KB |
Output is correct |
49 |
Correct |
9 ms |
45660 KB |
Output is correct |
50 |
Correct |
9 ms |
45660 KB |
Output is correct |
51 |
Correct |
9 ms |
45656 KB |
Output is correct |
52 |
Correct |
9 ms |
45660 KB |
Output is correct |
53 |
Correct |
10 ms |
45612 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
43352 KB |
Output is correct |
2 |
Correct |
9 ms |
42332 KB |
Output is correct |
3 |
Correct |
7 ms |
42320 KB |
Output is correct |
4 |
Correct |
9 ms |
43292 KB |
Output is correct |
5 |
Correct |
8 ms |
43356 KB |
Output is correct |
6 |
Correct |
8 ms |
43340 KB |
Output is correct |
7 |
Correct |
7 ms |
42332 KB |
Output is correct |
8 |
Correct |
7 ms |
42332 KB |
Output is correct |
9 |
Correct |
7 ms |
42332 KB |
Output is correct |
10 |
Correct |
7 ms |
43356 KB |
Output is correct |
11 |
Correct |
9 ms |
42332 KB |
Output is correct |
12 |
Correct |
7 ms |
43356 KB |
Output is correct |
13 |
Correct |
8 ms |
43352 KB |
Output is correct |
14 |
Correct |
7 ms |
43356 KB |
Output is correct |
15 |
Correct |
8 ms |
43356 KB |
Output is correct |
16 |
Correct |
7 ms |
43536 KB |
Output is correct |
17 |
Correct |
7 ms |
42332 KB |
Output is correct |
18 |
Correct |
7 ms |
43356 KB |
Output is correct |
19 |
Correct |
7 ms |
43356 KB |
Output is correct |
20 |
Correct |
7 ms |
42328 KB |
Output is correct |
21 |
Correct |
7 ms |
43608 KB |
Output is correct |
22 |
Correct |
7 ms |
43612 KB |
Output is correct |
23 |
Correct |
7 ms |
43612 KB |
Output is correct |
24 |
Correct |
7 ms |
43612 KB |
Output is correct |
25 |
Correct |
7 ms |
42588 KB |
Output is correct |
26 |
Correct |
8 ms |
43612 KB |
Output is correct |
27 |
Correct |
7 ms |
43612 KB |
Output is correct |
28 |
Correct |
7 ms |
42588 KB |
Output is correct |
29 |
Correct |
7 ms |
43612 KB |
Output is correct |
30 |
Correct |
7 ms |
43612 KB |
Output is correct |
31 |
Correct |
7 ms |
42588 KB |
Output is correct |
32 |
Correct |
7 ms |
43612 KB |
Output is correct |
33 |
Correct |
7 ms |
42588 KB |
Output is correct |
34 |
Correct |
8 ms |
43356 KB |
Output is correct |
35 |
Correct |
8 ms |
43356 KB |
Output is correct |
36 |
Correct |
9 ms |
43356 KB |
Output is correct |
37 |
Correct |
7 ms |
42332 KB |
Output is correct |
38 |
Correct |
8 ms |
43360 KB |
Output is correct |
39 |
Correct |
7 ms |
43580 KB |
Output is correct |
40 |
Correct |
8 ms |
43100 KB |
Output is correct |
41 |
Correct |
10 ms |
44588 KB |
Output is correct |
42 |
Correct |
9 ms |
45660 KB |
Output is correct |
43 |
Correct |
9 ms |
45660 KB |
Output is correct |
44 |
Correct |
9 ms |
44632 KB |
Output is correct |
45 |
Correct |
9 ms |
44632 KB |
Output is correct |
46 |
Correct |
10 ms |
45912 KB |
Output is correct |
47 |
Correct |
12 ms |
44888 KB |
Output is correct |
48 |
Correct |
11 ms |
45620 KB |
Output is correct |
49 |
Correct |
9 ms |
45660 KB |
Output is correct |
50 |
Correct |
9 ms |
45660 KB |
Output is correct |
51 |
Correct |
9 ms |
45656 KB |
Output is correct |
52 |
Correct |
9 ms |
45660 KB |
Output is correct |
53 |
Correct |
10 ms |
45612 KB |
Output is correct |
54 |
Correct |
16 ms |
49500 KB |
Output is correct |
55 |
Correct |
50 ms |
66396 KB |
Output is correct |
56 |
Correct |
50 ms |
66540 KB |
Output is correct |
57 |
Correct |
47 ms |
67564 KB |
Output is correct |
58 |
Correct |
45 ms |
67616 KB |
Output is correct |
59 |
Correct |
45 ms |
67596 KB |
Output is correct |
60 |
Correct |
45 ms |
67412 KB |
Output is correct |
61 |
Correct |
49 ms |
66392 KB |
Output is correct |
62 |
Correct |
54 ms |
67420 KB |
Output is correct |
63 |
Correct |
49 ms |
66448 KB |
Output is correct |
64 |
Correct |
51 ms |
67664 KB |
Output is correct |
65 |
Correct |
55 ms |
67444 KB |
Output is correct |
66 |
Correct |
55 ms |
67412 KB |
Output is correct |
67 |
Correct |
45 ms |
67412 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
43352 KB |
Output is correct |
2 |
Correct |
9 ms |
42332 KB |
Output is correct |
3 |
Correct |
7 ms |
42320 KB |
Output is correct |
4 |
Correct |
9 ms |
43292 KB |
Output is correct |
5 |
Correct |
8 ms |
43356 KB |
Output is correct |
6 |
Correct |
8 ms |
43340 KB |
Output is correct |
7 |
Correct |
7 ms |
42332 KB |
Output is correct |
8 |
Correct |
7 ms |
42332 KB |
Output is correct |
9 |
Correct |
7 ms |
42332 KB |
Output is correct |
10 |
Correct |
7 ms |
43356 KB |
Output is correct |
11 |
Correct |
8 ms |
42328 KB |
Output is correct |
12 |
Correct |
7 ms |
43352 KB |
Output is correct |
13 |
Correct |
196 ms |
111700 KB |
Output is correct |
14 |
Correct |
221 ms |
119452 KB |
Output is correct |
15 |
Correct |
304 ms |
131764 KB |
Output is correct |
16 |
Correct |
332 ms |
146720 KB |
Output is correct |
17 |
Correct |
401 ms |
160592 KB |
Output is correct |
18 |
Correct |
412 ms |
161332 KB |
Output is correct |
19 |
Correct |
408 ms |
161544 KB |
Output is correct |
20 |
Correct |
7 ms |
42328 KB |
Output is correct |
21 |
Correct |
7 ms |
43352 KB |
Output is correct |
22 |
Correct |
7 ms |
43356 KB |
Output is correct |
23 |
Correct |
8 ms |
43356 KB |
Output is correct |
24 |
Correct |
7 ms |
43356 KB |
Output is correct |
25 |
Correct |
7 ms |
42332 KB |
Output is correct |
26 |
Correct |
7 ms |
43608 KB |
Output is correct |
27 |
Correct |
9 ms |
43352 KB |
Output is correct |
28 |
Correct |
9 ms |
42332 KB |
Output is correct |
29 |
Correct |
7 ms |
43356 KB |
Output is correct |
30 |
Correct |
8 ms |
43352 KB |
Output is correct |
31 |
Correct |
7 ms |
43356 KB |
Output is correct |
32 |
Correct |
8 ms |
43356 KB |
Output is correct |
33 |
Correct |
7 ms |
43536 KB |
Output is correct |
34 |
Correct |
7 ms |
42332 KB |
Output is correct |
35 |
Correct |
7 ms |
43356 KB |
Output is correct |
36 |
Correct |
7 ms |
43356 KB |
Output is correct |
37 |
Correct |
7 ms |
42328 KB |
Output is correct |
38 |
Correct |
7 ms |
43608 KB |
Output is correct |
39 |
Correct |
7 ms |
43612 KB |
Output is correct |
40 |
Correct |
7 ms |
43612 KB |
Output is correct |
41 |
Correct |
7 ms |
43612 KB |
Output is correct |
42 |
Correct |
7 ms |
42588 KB |
Output is correct |
43 |
Correct |
8 ms |
43612 KB |
Output is correct |
44 |
Correct |
7 ms |
43612 KB |
Output is correct |
45 |
Correct |
7 ms |
42588 KB |
Output is correct |
46 |
Correct |
7 ms |
43612 KB |
Output is correct |
47 |
Correct |
7 ms |
43612 KB |
Output is correct |
48 |
Correct |
7 ms |
42588 KB |
Output is correct |
49 |
Correct |
7 ms |
43612 KB |
Output is correct |
50 |
Correct |
7 ms |
42588 KB |
Output is correct |
51 |
Correct |
8 ms |
43356 KB |
Output is correct |
52 |
Correct |
8 ms |
43356 KB |
Output is correct |
53 |
Correct |
9 ms |
43356 KB |
Output is correct |
54 |
Correct |
7 ms |
42332 KB |
Output is correct |
55 |
Correct |
8 ms |
43360 KB |
Output is correct |
56 |
Correct |
7 ms |
43580 KB |
Output is correct |
57 |
Correct |
8 ms |
43100 KB |
Output is correct |
58 |
Correct |
10 ms |
44588 KB |
Output is correct |
59 |
Correct |
9 ms |
45660 KB |
Output is correct |
60 |
Correct |
9 ms |
45660 KB |
Output is correct |
61 |
Correct |
9 ms |
44632 KB |
Output is correct |
62 |
Correct |
9 ms |
44632 KB |
Output is correct |
63 |
Correct |
10 ms |
45912 KB |
Output is correct |
64 |
Correct |
12 ms |
44888 KB |
Output is correct |
65 |
Correct |
11 ms |
45620 KB |
Output is correct |
66 |
Correct |
9 ms |
45660 KB |
Output is correct |
67 |
Correct |
9 ms |
45660 KB |
Output is correct |
68 |
Correct |
9 ms |
45656 KB |
Output is correct |
69 |
Correct |
9 ms |
45660 KB |
Output is correct |
70 |
Correct |
10 ms |
45612 KB |
Output is correct |
71 |
Correct |
16 ms |
49500 KB |
Output is correct |
72 |
Correct |
50 ms |
66396 KB |
Output is correct |
73 |
Correct |
50 ms |
66540 KB |
Output is correct |
74 |
Correct |
47 ms |
67564 KB |
Output is correct |
75 |
Correct |
45 ms |
67616 KB |
Output is correct |
76 |
Correct |
45 ms |
67596 KB |
Output is correct |
77 |
Correct |
45 ms |
67412 KB |
Output is correct |
78 |
Correct |
49 ms |
66392 KB |
Output is correct |
79 |
Correct |
54 ms |
67420 KB |
Output is correct |
80 |
Correct |
49 ms |
66448 KB |
Output is correct |
81 |
Correct |
51 ms |
67664 KB |
Output is correct |
82 |
Correct |
55 ms |
67444 KB |
Output is correct |
83 |
Correct |
55 ms |
67412 KB |
Output is correct |
84 |
Correct |
45 ms |
67412 KB |
Output is correct |
85 |
Correct |
113 ms |
97364 KB |
Output is correct |
86 |
Correct |
301 ms |
161536 KB |
Output is correct |
87 |
Correct |
267 ms |
162636 KB |
Output is correct |
88 |
Correct |
262 ms |
161544 KB |
Output is correct |
89 |
Correct |
253 ms |
160520 KB |
Output is correct |
90 |
Correct |
255 ms |
160220 KB |
Output is correct |
91 |
Correct |
331 ms |
161548 KB |
Output is correct |
92 |
Correct |
354 ms |
160464 KB |
Output is correct |
93 |
Correct |
283 ms |
161616 KB |
Output is correct |
94 |
Correct |
275 ms |
162728 KB |
Output is correct |
95 |
Correct |
329 ms |
160416 KB |
Output is correct |
96 |
Correct |
328 ms |
161332 KB |
Output is correct |
97 |
Correct |
262 ms |
161552 KB |
Output is correct |