#include<bits/stdc++.h>
#define ll long long
#define ull unsigned ll
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
using namespace std;
const int NMAX = 2501 + 1;
const int inf = 1e9 + 1;
const ll linf = 1e18 + 1;
ll h[NMAX];
const ll mod = 1e9 + 7;
const ll pr = 29;
ll po[NMAX];
string s;
void fil(){
int n = s.size();
h[0] = 0;
for(int i = 1; i <= n; i++){
ll x = s[i - 1] - 'a';
h[i] = h[i - 1] * 29 + x;
h[i] %= mod;
}
}
ll gethash(int l, int r){
ll x = h[r] - h[l - 1] * po[r - l + 1];
x %= mod;
x += mod;
x %= mod;
return x;
}
ll cnt[2501][2501];
int main(){
ios_base::sync_with_stdio(false); cin.tie(0);
po[0] = 1;
for(int i = 1; i <= 2500; i++){
po[i] = po[i - 1] * pr;
po[i] %= mod;
}
int n; cin >> n;
for(int i = 1; i <= n; i++){
for(int j = 1; j <= n; j++){
cnt[i][j] = linf;
}
}
cin >> s;
ll a, b, c; cin >> a >> b >> c;
fil();
for(int r = 1; r <= n; r++){
pii dp[n + 1];
for(int i = 1; i <= n; i++){
dp[i] = {inf, 0};
}
dp[1] = {r, 1};
cnt[r][r] = a;
for(int l = r - 1; l >= 1; l--){
for(int sz = 1; sz <= r - l + 1; sz++){
ll x = gethash(l, l + sz - 1);
ll y = gethash(r - sz + 1, r);
if(x == y){
if(dp[sz].f > l + sz - 1){
dp[sz].s++;
dp[sz].f = l;
}
}
}
cnt[l][r] = cnt[l][r - 1] + a;
for(int sz = 1; sz <= r - l + 1; sz++){
ll m = dp[sz].s;
ll val = cnt[r - sz + 1][r];
cnt[l][r] = min(cnt[l][r], (c - sz * a) * m + (r - l + 1) * a + val + b);
}
}
}
/*for(int i = 1; i <= n; i++){
for(int j = 1; j <= n; j++){
if(cnt[i][j] == linf)cout << - 1 << " ";
else cout << cnt[i][j] << " ";
}
cout << "\n";
}*/
cout << cnt[1][n];
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Execution timed out |
3079 ms |
33748 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
360 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
356 KB |
Output is correct |
19 |
Correct |
0 ms |
340 KB |
Output is correct |
20 |
Correct |
0 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
468 KB |
Output is correct |
22 |
Correct |
1 ms |
468 KB |
Output is correct |
23 |
Correct |
1 ms |
468 KB |
Output is correct |
24 |
Correct |
1 ms |
468 KB |
Output is correct |
25 |
Correct |
1 ms |
488 KB |
Output is correct |
26 |
Correct |
1 ms |
468 KB |
Output is correct |
27 |
Correct |
1 ms |
468 KB |
Output is correct |
28 |
Correct |
1 ms |
468 KB |
Output is correct |
29 |
Correct |
1 ms |
468 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
1 ms |
484 KB |
Output is correct |
32 |
Correct |
1 ms |
468 KB |
Output is correct |
33 |
Correct |
1 ms |
468 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
0 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
356 KB |
Output is correct |
39 |
Correct |
1 ms |
468 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
360 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
356 KB |
Output is correct |
19 |
Correct |
0 ms |
340 KB |
Output is correct |
20 |
Correct |
0 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
468 KB |
Output is correct |
22 |
Correct |
1 ms |
468 KB |
Output is correct |
23 |
Correct |
1 ms |
468 KB |
Output is correct |
24 |
Correct |
1 ms |
468 KB |
Output is correct |
25 |
Correct |
1 ms |
488 KB |
Output is correct |
26 |
Correct |
1 ms |
468 KB |
Output is correct |
27 |
Correct |
1 ms |
468 KB |
Output is correct |
28 |
Correct |
1 ms |
468 KB |
Output is correct |
29 |
Correct |
1 ms |
468 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
1 ms |
484 KB |
Output is correct |
32 |
Correct |
1 ms |
468 KB |
Output is correct |
33 |
Correct |
1 ms |
468 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
0 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
356 KB |
Output is correct |
39 |
Correct |
1 ms |
468 KB |
Output is correct |
40 |
Correct |
1 ms |
724 KB |
Output is correct |
41 |
Correct |
11 ms |
1468 KB |
Output is correct |
42 |
Correct |
11 ms |
1364 KB |
Output is correct |
43 |
Correct |
11 ms |
1472 KB |
Output is correct |
44 |
Correct |
12 ms |
1376 KB |
Output is correct |
45 |
Correct |
12 ms |
1472 KB |
Output is correct |
46 |
Correct |
14 ms |
1468 KB |
Output is correct |
47 |
Correct |
11 ms |
1472 KB |
Output is correct |
48 |
Correct |
11 ms |
1364 KB |
Output is correct |
49 |
Correct |
11 ms |
1364 KB |
Output is correct |
50 |
Correct |
14 ms |
1476 KB |
Output is correct |
51 |
Correct |
11 ms |
1476 KB |
Output is correct |
52 |
Correct |
11 ms |
1364 KB |
Output is correct |
53 |
Correct |
11 ms |
1364 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
360 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
356 KB |
Output is correct |
19 |
Correct |
0 ms |
340 KB |
Output is correct |
20 |
Correct |
0 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
468 KB |
Output is correct |
22 |
Correct |
1 ms |
468 KB |
Output is correct |
23 |
Correct |
1 ms |
468 KB |
Output is correct |
24 |
Correct |
1 ms |
468 KB |
Output is correct |
25 |
Correct |
1 ms |
488 KB |
Output is correct |
26 |
Correct |
1 ms |
468 KB |
Output is correct |
27 |
Correct |
1 ms |
468 KB |
Output is correct |
28 |
Correct |
1 ms |
468 KB |
Output is correct |
29 |
Correct |
1 ms |
468 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
1 ms |
484 KB |
Output is correct |
32 |
Correct |
1 ms |
468 KB |
Output is correct |
33 |
Correct |
1 ms |
468 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
0 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
356 KB |
Output is correct |
39 |
Correct |
1 ms |
468 KB |
Output is correct |
40 |
Correct |
1 ms |
724 KB |
Output is correct |
41 |
Correct |
11 ms |
1468 KB |
Output is correct |
42 |
Correct |
11 ms |
1364 KB |
Output is correct |
43 |
Correct |
11 ms |
1472 KB |
Output is correct |
44 |
Correct |
12 ms |
1376 KB |
Output is correct |
45 |
Correct |
12 ms |
1472 KB |
Output is correct |
46 |
Correct |
14 ms |
1468 KB |
Output is correct |
47 |
Correct |
11 ms |
1472 KB |
Output is correct |
48 |
Correct |
11 ms |
1364 KB |
Output is correct |
49 |
Correct |
11 ms |
1364 KB |
Output is correct |
50 |
Correct |
14 ms |
1476 KB |
Output is correct |
51 |
Correct |
11 ms |
1476 KB |
Output is correct |
52 |
Correct |
11 ms |
1364 KB |
Output is correct |
53 |
Correct |
11 ms |
1364 KB |
Output is correct |
54 |
Correct |
110 ms |
3708 KB |
Output is correct |
55 |
Correct |
1167 ms |
12188 KB |
Output is correct |
56 |
Correct |
1165 ms |
12196 KB |
Output is correct |
57 |
Correct |
1150 ms |
12192 KB |
Output is correct |
58 |
Correct |
1181 ms |
12188 KB |
Output is correct |
59 |
Correct |
1159 ms |
12236 KB |
Output is correct |
60 |
Correct |
1166 ms |
12188 KB |
Output is correct |
61 |
Correct |
1169 ms |
12200 KB |
Output is correct |
62 |
Correct |
1174 ms |
12236 KB |
Output is correct |
63 |
Correct |
1164 ms |
12184 KB |
Output is correct |
64 |
Correct |
1158 ms |
12184 KB |
Output is correct |
65 |
Correct |
1202 ms |
12192 KB |
Output is correct |
66 |
Correct |
1202 ms |
12188 KB |
Output is correct |
67 |
Correct |
1152 ms |
12200 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Execution timed out |
3079 ms |
33748 KB |
Time limit exceeded |
14 |
Halted |
0 ms |
0 KB |
- |