#include <bits/stdc++.h>
#ifndef _DEBUG
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
#endif
using namespace std;
signed main()
{
cin.tie(0);
ios_base::sync_with_stdio(false);
string s;
cin >> s;
int n = s.size();
int g = *max_element(s.begin(), s.end()) - 'A' + 1;
vector<int> a(n);
vector<vector<int>> pos(g);
for (int i = 0; i < n; i++)
pos[a[i] = s[i] - 'A'].push_back(i);
vector<vector<int>> prefix(1 << g, vector<int>(n));
vector<vector<int>> suffix(1 << g, vector<int>(n));
for (int k = 0; k < 1 << g; k++)
{
for (int i = 1; i < n; i++)
prefix[k][i] = prefix[k][i - 1] + bool(1 << a[i - 1] & k);
for (int i = n - 2; i >= 0; i--)
suffix[k][i] = suffix[k][i + 1] + bool(1 << a[i + 1] & k);
}
vector<double> dp(1 << g, 1e20);
dp[0] = 0;
for (int b = 1; b < 1 << g; b++)
{
for (int i = 0; i < g; i++)
{
if (!(b & (1 << i)))
continue;
double cost = 0;
for (int p : pos[i])
{
cost += min(prefix[b][p] - 0.5 * prefix[(1 << i)][p], suffix[b][p] - 0.5 * suffix[(1 << i)][p]);
}
dp[b] = min(dp[b], dp[b ^ (1 << i)] + cost);
}
}
cout << setprecision(15) << dp.back();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
3 ms |
2652 KB |
Output is correct |
7 |
Correct |
4 ms |
3104 KB |
Output is correct |
8 |
Correct |
4 ms |
3208 KB |
Output is correct |
9 |
Correct |
4 ms |
3208 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 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 |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 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 |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
0 ms |
340 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
0 ms |
340 KB |
Output is correct |
32 |
Correct |
0 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Correct |
20 ms |
20436 KB |
Output is correct |
36 |
Correct |
20 ms |
20436 KB |
Output is correct |
37 |
Correct |
81 ms |
80596 KB |
Output is correct |
38 |
Correct |
79 ms |
80588 KB |
Output is correct |
39 |
Correct |
81 ms |
80596 KB |
Output is correct |
40 |
Correct |
82 ms |
80380 KB |
Output is correct |
41 |
Correct |
83 ms |
78924 KB |
Output is correct |
42 |
Correct |
85 ms |
79000 KB |
Output is correct |
43 |
Correct |
85 ms |
78924 KB |
Output is correct |
44 |
Correct |
85 ms |
79052 KB |
Output is correct |
45 |
Correct |
84 ms |
79016 KB |
Output is correct |
46 |
Correct |
87 ms |
78896 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
3 ms |
2652 KB |
Output is correct |
7 |
Correct |
4 ms |
3104 KB |
Output is correct |
8 |
Correct |
4 ms |
3208 KB |
Output is correct |
9 |
Correct |
4 ms |
3208 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
0 ms |
340 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
0 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
0 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
0 ms |
340 KB |
Output is correct |
26 |
Correct |
0 ms |
340 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
1 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
0 ms |
340 KB |
Output is correct |
41 |
Correct |
0 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
340 KB |
Output is correct |
43 |
Correct |
0 ms |
340 KB |
Output is correct |
44 |
Correct |
20 ms |
20436 KB |
Output is correct |
45 |
Correct |
20 ms |
20436 KB |
Output is correct |
46 |
Correct |
81 ms |
80596 KB |
Output is correct |
47 |
Correct |
79 ms |
80588 KB |
Output is correct |
48 |
Correct |
81 ms |
80596 KB |
Output is correct |
49 |
Correct |
82 ms |
80380 KB |
Output is correct |
50 |
Correct |
83 ms |
78924 KB |
Output is correct |
51 |
Correct |
85 ms |
79000 KB |
Output is correct |
52 |
Correct |
85 ms |
78924 KB |
Output is correct |
53 |
Correct |
85 ms |
79052 KB |
Output is correct |
54 |
Correct |
84 ms |
79016 KB |
Output is correct |
55 |
Correct |
87 ms |
78896 KB |
Output is correct |
56 |
Correct |
8 ms |
6228 KB |
Output is correct |
57 |
Correct |
12 ms |
10324 KB |
Output is correct |
58 |
Correct |
0 ms |
340 KB |
Output is correct |
59 |
Correct |
0 ms |
212 KB |
Output is correct |
60 |
Correct |
0 ms |
212 KB |
Output is correct |
61 |
Correct |
0 ms |
212 KB |
Output is correct |
62 |
Correct |
1 ms |
340 KB |
Output is correct |
63 |
Correct |
3 ms |
2652 KB |
Output is correct |
64 |
Correct |
4 ms |
3104 KB |
Output is correct |
65 |
Correct |
4 ms |
3208 KB |
Output is correct |
66 |
Correct |
4 ms |
3208 KB |
Output is correct |
67 |
Correct |
0 ms |
212 KB |
Output is correct |
68 |
Correct |
0 ms |
212 KB |
Output is correct |
69 |
Correct |
1 ms |
340 KB |
Output is correct |
70 |
Correct |
1 ms |
340 KB |
Output is correct |
71 |
Correct |
1 ms |
340 KB |
Output is correct |
72 |
Correct |
0 ms |
212 KB |
Output is correct |
73 |
Correct |
1 ms |
340 KB |
Output is correct |
74 |
Correct |
1 ms |
340 KB |
Output is correct |
75 |
Correct |
0 ms |
340 KB |
Output is correct |
76 |
Correct |
0 ms |
340 KB |
Output is correct |
77 |
Correct |
1 ms |
340 KB |
Output is correct |
78 |
Correct |
0 ms |
340 KB |
Output is correct |
79 |
Correct |
1 ms |
340 KB |
Output is correct |
80 |
Correct |
0 ms |
340 KB |
Output is correct |
81 |
Correct |
0 ms |
340 KB |
Output is correct |
82 |
Correct |
0 ms |
340 KB |
Output is correct |
83 |
Correct |
1 ms |
340 KB |
Output is correct |
84 |
Correct |
20 ms |
20436 KB |
Output is correct |
85 |
Correct |
20 ms |
20436 KB |
Output is correct |
86 |
Correct |
85 ms |
80724 KB |
Output is correct |
87 |
Correct |
80 ms |
80596 KB |
Output is correct |
88 |
Correct |
78 ms |
80660 KB |
Output is correct |
89 |
Correct |
83 ms |
80460 KB |
Output is correct |
90 |
Correct |
84 ms |
79008 KB |
Output is correct |
91 |
Correct |
84 ms |
78952 KB |
Output is correct |
92 |
Correct |
81 ms |
79132 KB |
Output is correct |
93 |
Correct |
88 ms |
78924 KB |
Output is correct |
94 |
Correct |
83 ms |
79076 KB |
Output is correct |
95 |
Correct |
85 ms |
79004 KB |
Output is correct |
96 |
Runtime error |
702 ms |
1048576 KB |
Execution killed with signal 9 |
97 |
Halted |
0 ms |
0 KB |
- |