#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ii pair<int,int>
#define fi first
#define se second
#define endl '\n'
#define puf push_front
#define pof pop_front
#define pub push_back
#define pob pop_back
#define lb lower_bound
#define ub upper_bound
#define rep(x,s,e) for (int x=(s)-((s)>(e));x!=(e)-((s)>(e));((s)<(e))?x++:x--)
#define all(x) (x).begin(),(x).end()
#define sz(x) (int) (x).size()
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int n;
string s;
int a,b,c;
int memo[2505][2505]; //the answer
int nxt[2505][2505]; //(length,index)
void proc(vector<int> v,int len){
sort(all(v));
reverse(all(v));
int idx=-1;
for (auto it:v){
if (it+len<=v[idx+1]) idx++;
if (idx!=-1) nxt[len][it]=v[idx];
}
//cout<<len<<": "<<endl;
//for (auto it:v) cout<<it<<" "; cout<<endl;
}
signed main(){
cin.tie(0);
cout.tie(0);
cin.sync_with_stdio(false);
cin>>n>>s;
cin>>a>>b>>c;
memset(nxt,-1,sizeof(nxt));
rep(x,1,n+1){
vector<int> idx;
rep(y,0,n-x+1) idx.pub(y);
sort(all(idx),[x](int i,int j){ //poor man's suffix array
return s.substr(i,x)<s.substr(j,x);
});
vector<int> temp;
for (auto it:idx){
if (!temp.empty() && s.substr(temp.back(),x)!=s.substr(it,x)){
proc(temp,x);
temp.clear();
}
temp.pub(it);
}
proc(temp,x);
}
//rep(x,1,n+1){
//rep(y,0,n) cout<<nxt[x][y]<<" "; cout<<endl;
//}
memset(memo,1,sizeof(memo));
rep(x,0,n) memo[x][x]=a;
rep(len,1,n+1){
rep(l,0,n+1-len){
int r=l+len-1;
if (l!=0) memo[l-1][r]=min(memo[l-1][r],memo[l][r]+a);
if (r!=n-1) memo[l][r+1]=min(memo[l][r+1],memo[l][r]+a);
int curr=l;
int num=1;
while (nxt[len][curr]!=-1){
curr=nxt[len][curr];
num++;
int r2=curr+len-1;
memo[l][r2]=min(memo[l][r2],
memo[l][r]+b+num*c+(r2-l+1-num*len)*a);
}
}
}
cout<<memo[0][n-1]<<endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
98508 KB |
Output is correct |
2 |
Correct |
38 ms |
98524 KB |
Output is correct |
3 |
Correct |
44 ms |
98456 KB |
Output is correct |
4 |
Correct |
41 ms |
98484 KB |
Output is correct |
5 |
Correct |
40 ms |
98528 KB |
Output is correct |
6 |
Correct |
39 ms |
98540 KB |
Output is correct |
7 |
Correct |
38 ms |
98564 KB |
Output is correct |
8 |
Correct |
38 ms |
98420 KB |
Output is correct |
9 |
Correct |
42 ms |
98508 KB |
Output is correct |
10 |
Correct |
38 ms |
98508 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
38 ms |
98448 KB |
Output is correct |
2 |
Correct |
45 ms |
98444 KB |
Output is correct |
3 |
Correct |
2037 ms |
98552 KB |
Output is correct |
4 |
Correct |
2475 ms |
98572 KB |
Output is correct |
5 |
Execution timed out |
3100 ms |
98580 KB |
Time limit exceeded |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
98508 KB |
Output is correct |
2 |
Correct |
38 ms |
98524 KB |
Output is correct |
3 |
Correct |
44 ms |
98456 KB |
Output is correct |
4 |
Correct |
41 ms |
98484 KB |
Output is correct |
5 |
Correct |
40 ms |
98528 KB |
Output is correct |
6 |
Correct |
39 ms |
98540 KB |
Output is correct |
7 |
Correct |
38 ms |
98564 KB |
Output is correct |
8 |
Correct |
38 ms |
98420 KB |
Output is correct |
9 |
Correct |
42 ms |
98508 KB |
Output is correct |
10 |
Correct |
38 ms |
98508 KB |
Output is correct |
11 |
Correct |
38 ms |
98508 KB |
Output is correct |
12 |
Correct |
38 ms |
98516 KB |
Output is correct |
13 |
Correct |
38 ms |
98472 KB |
Output is correct |
14 |
Correct |
41 ms |
98544 KB |
Output is correct |
15 |
Correct |
41 ms |
98472 KB |
Output is correct |
16 |
Correct |
38 ms |
98512 KB |
Output is correct |
17 |
Correct |
37 ms |
98476 KB |
Output is correct |
18 |
Correct |
39 ms |
98476 KB |
Output is correct |
19 |
Correct |
40 ms |
98480 KB |
Output is correct |
20 |
Correct |
39 ms |
98428 KB |
Output is correct |
21 |
Correct |
40 ms |
98488 KB |
Output is correct |
22 |
Correct |
40 ms |
98436 KB |
Output is correct |
23 |
Correct |
43 ms |
98436 KB |
Output is correct |
24 |
Correct |
39 ms |
98488 KB |
Output is correct |
25 |
Correct |
38 ms |
98456 KB |
Output is correct |
26 |
Correct |
38 ms |
98508 KB |
Output is correct |
27 |
Correct |
41 ms |
98440 KB |
Output is correct |
28 |
Correct |
42 ms |
98424 KB |
Output is correct |
29 |
Correct |
41 ms |
98608 KB |
Output is correct |
30 |
Correct |
42 ms |
98428 KB |
Output is correct |
31 |
Correct |
37 ms |
98448 KB |
Output is correct |
32 |
Correct |
43 ms |
98536 KB |
Output is correct |
33 |
Correct |
43 ms |
98476 KB |
Output is correct |
34 |
Correct |
49 ms |
98456 KB |
Output is correct |
35 |
Correct |
39 ms |
98508 KB |
Output is correct |
36 |
Correct |
39 ms |
98516 KB |
Output is correct |
37 |
Correct |
39 ms |
98508 KB |
Output is correct |
38 |
Correct |
45 ms |
98468 KB |
Output is correct |
39 |
Correct |
47 ms |
98528 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
98508 KB |
Output is correct |
2 |
Correct |
38 ms |
98524 KB |
Output is correct |
3 |
Correct |
44 ms |
98456 KB |
Output is correct |
4 |
Correct |
41 ms |
98484 KB |
Output is correct |
5 |
Correct |
40 ms |
98528 KB |
Output is correct |
6 |
Correct |
39 ms |
98540 KB |
Output is correct |
7 |
Correct |
38 ms |
98564 KB |
Output is correct |
8 |
Correct |
38 ms |
98420 KB |
Output is correct |
9 |
Correct |
42 ms |
98508 KB |
Output is correct |
10 |
Correct |
38 ms |
98508 KB |
Output is correct |
11 |
Correct |
38 ms |
98508 KB |
Output is correct |
12 |
Correct |
38 ms |
98516 KB |
Output is correct |
13 |
Correct |
38 ms |
98472 KB |
Output is correct |
14 |
Correct |
41 ms |
98544 KB |
Output is correct |
15 |
Correct |
41 ms |
98472 KB |
Output is correct |
16 |
Correct |
38 ms |
98512 KB |
Output is correct |
17 |
Correct |
37 ms |
98476 KB |
Output is correct |
18 |
Correct |
39 ms |
98476 KB |
Output is correct |
19 |
Correct |
40 ms |
98480 KB |
Output is correct |
20 |
Correct |
39 ms |
98428 KB |
Output is correct |
21 |
Correct |
40 ms |
98488 KB |
Output is correct |
22 |
Correct |
40 ms |
98436 KB |
Output is correct |
23 |
Correct |
43 ms |
98436 KB |
Output is correct |
24 |
Correct |
39 ms |
98488 KB |
Output is correct |
25 |
Correct |
38 ms |
98456 KB |
Output is correct |
26 |
Correct |
38 ms |
98508 KB |
Output is correct |
27 |
Correct |
41 ms |
98440 KB |
Output is correct |
28 |
Correct |
42 ms |
98424 KB |
Output is correct |
29 |
Correct |
41 ms |
98608 KB |
Output is correct |
30 |
Correct |
42 ms |
98428 KB |
Output is correct |
31 |
Correct |
37 ms |
98448 KB |
Output is correct |
32 |
Correct |
43 ms |
98536 KB |
Output is correct |
33 |
Correct |
43 ms |
98476 KB |
Output is correct |
34 |
Correct |
49 ms |
98456 KB |
Output is correct |
35 |
Correct |
39 ms |
98508 KB |
Output is correct |
36 |
Correct |
39 ms |
98516 KB |
Output is correct |
37 |
Correct |
39 ms |
98508 KB |
Output is correct |
38 |
Correct |
45 ms |
98468 KB |
Output is correct |
39 |
Correct |
47 ms |
98528 KB |
Output is correct |
40 |
Correct |
42 ms |
98444 KB |
Output is correct |
41 |
Correct |
49 ms |
98472 KB |
Output is correct |
42 |
Correct |
53 ms |
98524 KB |
Output is correct |
43 |
Correct |
52 ms |
98528 KB |
Output is correct |
44 |
Correct |
52 ms |
98508 KB |
Output is correct |
45 |
Correct |
51 ms |
98496 KB |
Output is correct |
46 |
Correct |
52 ms |
98464 KB |
Output is correct |
47 |
Correct |
60 ms |
98508 KB |
Output is correct |
48 |
Correct |
54 ms |
98492 KB |
Output is correct |
49 |
Correct |
54 ms |
98592 KB |
Output is correct |
50 |
Correct |
51 ms |
98492 KB |
Output is correct |
51 |
Correct |
52 ms |
98472 KB |
Output is correct |
52 |
Correct |
60 ms |
98592 KB |
Output is correct |
53 |
Correct |
56 ms |
98468 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
98508 KB |
Output is correct |
2 |
Correct |
38 ms |
98524 KB |
Output is correct |
3 |
Correct |
44 ms |
98456 KB |
Output is correct |
4 |
Correct |
41 ms |
98484 KB |
Output is correct |
5 |
Correct |
40 ms |
98528 KB |
Output is correct |
6 |
Correct |
39 ms |
98540 KB |
Output is correct |
7 |
Correct |
38 ms |
98564 KB |
Output is correct |
8 |
Correct |
38 ms |
98420 KB |
Output is correct |
9 |
Correct |
42 ms |
98508 KB |
Output is correct |
10 |
Correct |
38 ms |
98508 KB |
Output is correct |
11 |
Correct |
38 ms |
98508 KB |
Output is correct |
12 |
Correct |
38 ms |
98516 KB |
Output is correct |
13 |
Correct |
38 ms |
98472 KB |
Output is correct |
14 |
Correct |
41 ms |
98544 KB |
Output is correct |
15 |
Correct |
41 ms |
98472 KB |
Output is correct |
16 |
Correct |
38 ms |
98512 KB |
Output is correct |
17 |
Correct |
37 ms |
98476 KB |
Output is correct |
18 |
Correct |
39 ms |
98476 KB |
Output is correct |
19 |
Correct |
40 ms |
98480 KB |
Output is correct |
20 |
Correct |
39 ms |
98428 KB |
Output is correct |
21 |
Correct |
40 ms |
98488 KB |
Output is correct |
22 |
Correct |
40 ms |
98436 KB |
Output is correct |
23 |
Correct |
43 ms |
98436 KB |
Output is correct |
24 |
Correct |
39 ms |
98488 KB |
Output is correct |
25 |
Correct |
38 ms |
98456 KB |
Output is correct |
26 |
Correct |
38 ms |
98508 KB |
Output is correct |
27 |
Correct |
41 ms |
98440 KB |
Output is correct |
28 |
Correct |
42 ms |
98424 KB |
Output is correct |
29 |
Correct |
41 ms |
98608 KB |
Output is correct |
30 |
Correct |
42 ms |
98428 KB |
Output is correct |
31 |
Correct |
37 ms |
98448 KB |
Output is correct |
32 |
Correct |
43 ms |
98536 KB |
Output is correct |
33 |
Correct |
43 ms |
98476 KB |
Output is correct |
34 |
Correct |
49 ms |
98456 KB |
Output is correct |
35 |
Correct |
39 ms |
98508 KB |
Output is correct |
36 |
Correct |
39 ms |
98516 KB |
Output is correct |
37 |
Correct |
39 ms |
98508 KB |
Output is correct |
38 |
Correct |
45 ms |
98468 KB |
Output is correct |
39 |
Correct |
47 ms |
98528 KB |
Output is correct |
40 |
Correct |
42 ms |
98444 KB |
Output is correct |
41 |
Correct |
49 ms |
98472 KB |
Output is correct |
42 |
Correct |
53 ms |
98524 KB |
Output is correct |
43 |
Correct |
52 ms |
98528 KB |
Output is correct |
44 |
Correct |
52 ms |
98508 KB |
Output is correct |
45 |
Correct |
51 ms |
98496 KB |
Output is correct |
46 |
Correct |
52 ms |
98464 KB |
Output is correct |
47 |
Correct |
60 ms |
98508 KB |
Output is correct |
48 |
Correct |
54 ms |
98492 KB |
Output is correct |
49 |
Correct |
54 ms |
98592 KB |
Output is correct |
50 |
Correct |
51 ms |
98492 KB |
Output is correct |
51 |
Correct |
52 ms |
98472 KB |
Output is correct |
52 |
Correct |
60 ms |
98592 KB |
Output is correct |
53 |
Correct |
56 ms |
98468 KB |
Output is correct |
54 |
Correct |
117 ms |
98468 KB |
Output is correct |
55 |
Correct |
436 ms |
98488 KB |
Output is correct |
56 |
Correct |
546 ms |
98608 KB |
Output is correct |
57 |
Correct |
563 ms |
98616 KB |
Output is correct |
58 |
Correct |
572 ms |
98480 KB |
Output is correct |
59 |
Correct |
562 ms |
98492 KB |
Output is correct |
60 |
Correct |
569 ms |
98612 KB |
Output is correct |
61 |
Correct |
557 ms |
98604 KB |
Output is correct |
62 |
Correct |
428 ms |
98508 KB |
Output is correct |
63 |
Correct |
580 ms |
98604 KB |
Output is correct |
64 |
Correct |
565 ms |
98524 KB |
Output is correct |
65 |
Correct |
583 ms |
98600 KB |
Output is correct |
66 |
Correct |
576 ms |
98604 KB |
Output is correct |
67 |
Correct |
549 ms |
98532 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
98508 KB |
Output is correct |
2 |
Correct |
38 ms |
98524 KB |
Output is correct |
3 |
Correct |
44 ms |
98456 KB |
Output is correct |
4 |
Correct |
41 ms |
98484 KB |
Output is correct |
5 |
Correct |
40 ms |
98528 KB |
Output is correct |
6 |
Correct |
39 ms |
98540 KB |
Output is correct |
7 |
Correct |
38 ms |
98564 KB |
Output is correct |
8 |
Correct |
38 ms |
98420 KB |
Output is correct |
9 |
Correct |
42 ms |
98508 KB |
Output is correct |
10 |
Correct |
38 ms |
98508 KB |
Output is correct |
11 |
Correct |
38 ms |
98448 KB |
Output is correct |
12 |
Correct |
45 ms |
98444 KB |
Output is correct |
13 |
Correct |
2037 ms |
98552 KB |
Output is correct |
14 |
Correct |
2475 ms |
98572 KB |
Output is correct |
15 |
Execution timed out |
3100 ms |
98580 KB |
Time limit exceeded |
16 |
Halted |
0 ms |
0 KB |
- |