#include<bits/stdc++.h>
#define ll long long
#define pll pair<ll, ll>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define ld long double
using namespace std;
const ll inf=2e9, maxn=1e3;
ll pre[maxn], to[maxn];
ll n, k, a[maxn], dp[maxn][maxn];
ll cost(ll j, ll i)
{
if (to[j]>i) return 0;
return (pre[i]-i*j)-(pre[to[j]-1]-(to[j]-1)*j);
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
cin >> n >> k;
string s; cin >> s;
ll x=0, y=0, crr=1;
for (ll i=0; i<n*2; i++)
{
if (s[i]=='A')
x++, pre[x]=pre[x-1]+y;
else y++;
}
for (ll i=1; i<=n; i++)
while (crr<=pre[i]-pre[i-1])
to[crr]=i, crr++;
while (crr<=n) to[crr]=n+1, crr++;
for (ll i=1; i<=n; i++)
if (to[i]<=i)
to[i]=i+1;
for (ll i=0; i<=k; i++)
for (ll j=0; j<=n; j++)
dp[i][j]=inf*inf;
dp[0][0]=0;
for (ll i=1; i<=k; i++)
for (ll j=1; j<=n; j++)
for (ll z=0; z<j; z++)
dp[i][j]=min(dp[i][j], dp[i-1][z]+cost(z, j));
cout << dp[k][n];
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
408 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
372 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
408 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
372 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
2 ms |
2396 KB |
Output is correct |
18 |
Correct |
17 ms |
2700 KB |
Output is correct |
19 |
Correct |
49 ms |
2652 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
600 KB |
Output is correct |
22 |
Correct |
89 ms |
4700 KB |
Output is correct |
23 |
Correct |
89 ms |
4696 KB |
Output is correct |
24 |
Correct |
2 ms |
344 KB |
Output is correct |
25 |
Correct |
90 ms |
4700 KB |
Output is correct |
26 |
Correct |
91 ms |
4732 KB |
Output is correct |
27 |
Correct |
33 ms |
2680 KB |
Output is correct |
28 |
Correct |
30 ms |
2652 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
408 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
372 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
2 ms |
2396 KB |
Output is correct |
18 |
Correct |
17 ms |
2700 KB |
Output is correct |
19 |
Correct |
49 ms |
2652 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
600 KB |
Output is correct |
22 |
Correct |
89 ms |
4700 KB |
Output is correct |
23 |
Correct |
89 ms |
4696 KB |
Output is correct |
24 |
Correct |
2 ms |
344 KB |
Output is correct |
25 |
Correct |
90 ms |
4700 KB |
Output is correct |
26 |
Correct |
91 ms |
4732 KB |
Output is correct |
27 |
Correct |
33 ms |
2680 KB |
Output is correct |
28 |
Correct |
30 ms |
2652 KB |
Output is correct |
29 |
Runtime error |
1 ms |
604 KB |
Execution killed with signal 11 |
30 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
408 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
372 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
2 ms |
2396 KB |
Output is correct |
18 |
Correct |
17 ms |
2700 KB |
Output is correct |
19 |
Correct |
49 ms |
2652 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
600 KB |
Output is correct |
22 |
Correct |
89 ms |
4700 KB |
Output is correct |
23 |
Correct |
89 ms |
4696 KB |
Output is correct |
24 |
Correct |
2 ms |
344 KB |
Output is correct |
25 |
Correct |
90 ms |
4700 KB |
Output is correct |
26 |
Correct |
91 ms |
4732 KB |
Output is correct |
27 |
Correct |
33 ms |
2680 KB |
Output is correct |
28 |
Correct |
30 ms |
2652 KB |
Output is correct |
29 |
Runtime error |
1 ms |
604 KB |
Execution killed with signal 11 |
30 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
408 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
372 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
2 ms |
2396 KB |
Output is correct |
18 |
Correct |
17 ms |
2700 KB |
Output is correct |
19 |
Correct |
49 ms |
2652 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
600 KB |
Output is correct |
22 |
Correct |
89 ms |
4700 KB |
Output is correct |
23 |
Correct |
89 ms |
4696 KB |
Output is correct |
24 |
Correct |
2 ms |
344 KB |
Output is correct |
25 |
Correct |
90 ms |
4700 KB |
Output is correct |
26 |
Correct |
91 ms |
4732 KB |
Output is correct |
27 |
Correct |
33 ms |
2680 KB |
Output is correct |
28 |
Correct |
30 ms |
2652 KB |
Output is correct |
29 |
Runtime error |
1 ms |
604 KB |
Execution killed with signal 11 |
30 |
Halted |
0 ms |
0 KB |
- |