#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int N=2505;
int n;
string s;
ll a,b,c;
int nxt[N][N];
ll dp[N][N];
vector<int> z_algo(const string &s){
int n=s.size();
vector<int> z(n);
z[0]=n;
for(int i=1,l=0,r=1;i<n;i++){
if(i<r)z[i]=min(r-i,z[i-l]);
while(i+z[i]<n&&s[z[i]]==s[i+z[i]])z[i]++;
if(i+z[i]>r)l=r,r=i+z[i];
}
return z;
}
int main(){
cin.tie(nullptr)->sync_with_stdio(false);
cin >> n;
cin >> s;
cin >> a >> b >> c;
for(int l=0;l<n;l++){
auto z=z_algo(s.substr(l,n-l));
int p=l;
for(int r=l;r<n;r++){
while(p<n&&(p<=r||z[p-l]<r-l+1))p++;
nxt[l][r]=p;
}
}
for(int l=0;l<n;l++){
for(int r=l;r<n;r++){
dp[l][r]=(r-l+1)*a;
}
}
for(int sz=1;sz<=n;sz++){
for(int l=0,r=sz-1;r<n;l++,r++){
if(l>0)dp[l-1][r]=min(dp[l-1][r],dp[l][r]+a);
if(r+1<n)dp[l][r+1]=min(dp[l][r+1],dp[l][r]+a);
int p=nxt[l][r];
int cnt=2;
while(p<n){
dp[l][p+sz-1]=min(dp[l][p+sz-1],dp[l][r]+(p+sz-l-sz*cnt)*a+b+cnt*c);
p=nxt[p][p+sz-1];
cnt++;
}
}
}
cout << dp[0][n-1] << "\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4444 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
66 ms |
58092 KB |
Output is correct |
4 |
Correct |
83 ms |
62044 KB |
Output is correct |
5 |
Correct |
91 ms |
68188 KB |
Output is correct |
6 |
Correct |
116 ms |
70236 KB |
Output is correct |
7 |
Correct |
156 ms |
73052 KB |
Output is correct |
8 |
Correct |
156 ms |
73044 KB |
Output is correct |
9 |
Correct |
138 ms |
73188 KB |
Output is correct |
10 |
Correct |
1 ms |
2392 KB |
Output is correct |
11 |
Correct |
0 ms |
2396 KB |
Output is correct |
12 |
Correct |
0 ms |
2396 KB |
Output is correct |
13 |
Correct |
0 ms |
2396 KB |
Output is correct |
14 |
Correct |
0 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
4440 KB |
Output is correct |
16 |
Correct |
1 ms |
4444 KB |
Output is correct |
17 |
Correct |
0 ms |
2392 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
4444 KB |
Output is correct |
12 |
Correct |
1 ms |
4444 KB |
Output is correct |
13 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
14 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
4444 KB |
Output is correct |
12 |
Correct |
1 ms |
4444 KB |
Output is correct |
13 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
14 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
4444 KB |
Output is correct |
12 |
Correct |
1 ms |
4444 KB |
Output is correct |
13 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
14 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
4444 KB |
Output is correct |
12 |
Correct |
0 ms |
2396 KB |
Output is correct |
13 |
Correct |
66 ms |
58092 KB |
Output is correct |
14 |
Correct |
83 ms |
62044 KB |
Output is correct |
15 |
Correct |
91 ms |
68188 KB |
Output is correct |
16 |
Correct |
116 ms |
70236 KB |
Output is correct |
17 |
Correct |
156 ms |
73052 KB |
Output is correct |
18 |
Correct |
156 ms |
73044 KB |
Output is correct |
19 |
Correct |
138 ms |
73188 KB |
Output is correct |
20 |
Correct |
1 ms |
2392 KB |
Output is correct |
21 |
Correct |
0 ms |
2396 KB |
Output is correct |
22 |
Correct |
0 ms |
2396 KB |
Output is correct |
23 |
Correct |
0 ms |
2396 KB |
Output is correct |
24 |
Correct |
0 ms |
2396 KB |
Output is correct |
25 |
Correct |
1 ms |
4440 KB |
Output is correct |
26 |
Correct |
1 ms |
4444 KB |
Output is correct |
27 |
Correct |
0 ms |
2392 KB |
Output is correct |
28 |
Correct |
1 ms |
4444 KB |
Output is correct |
29 |
Correct |
1 ms |
4444 KB |
Output is correct |
30 |
Incorrect |
1 ms |
4444 KB |
Output isn't correct |
31 |
Halted |
0 ms |
0 KB |
- |