#include "bits/stdc++.h"
using namespace std;
using i64 = long long;
using u64 = unsigned long long;
using i32 = int;
using u32 = unsigned;
using i16 = short;
using u16 = unsigned short;
using ld = long double;
using ii = pair<int, int>;
const int N = 401, INF = 1e9;
int dp[N][N][N][3];
void solve() {
int n, r, g, y;
string s, p = "RGY";
vector<int> pos[3], cnt[3][3];
cin >> n >> s;
for(int i = 0; i < n; ++i) {
for(int j = 0; j < 3; ++j) {
if(s[i] == p[j])
pos[j].push_back(i);
}
}
r = pos[0].size();
g = pos[1].size();
y = pos[2].size();
for(int i = 0; i <= r; ++i)
for(int j = 0; j <= g; ++j)
for(int k = 0; k <= y; ++k)
for(int l = 0; l < 3; ++l)
dp[i][j][k][l] = INF;
for(int i = 0; i < 3; ++i) {
int n = pos[i].size();
for(int j = 0; j < 3; ++j) {
cnt[i][j].resize(n);
for(int k = 0; k < n; ++k)
cnt[i][j][k] = lower_bound(pos[j].begin(), pos[j].end(), pos[i][k]) - pos[j].begin();
}
}
for(int l = 0; l < 3; ++l) dp[0][0][0][l] = 0;
for(int i = 0; i <= r; ++i) {
for(int j = 0; j <= g; ++j) {
for(int k = 0; k <= y; ++k) {
if(i > 0) {
int moves = max(0, cnt[0][1][i - 1] - j) + max(0, cnt[0][2][i - 1] - k);
dp[i][j][k][0] = min(dp[i][j][k][0], min(dp[i - 1][j][k][1], dp[i - 1][j][k][2]) + moves);
}
if(j > 0) {
int moves = max(0, cnt[1][0][j - 1] - i) + max(0, cnt[1][2][j - 1] - k);
dp[i][j][k][1] = min(dp[i][j][k][1], min(dp[i][j - 1][k][0], dp[i][j - 1][k][2]) + moves);
}
if(k > 0) {
int moves = max(0, cnt[2][0][k - 1] - i) + max(0, cnt[2][1][k - 1] - j);
dp[i][j][k][2] = min(dp[i][j][k][2], min(dp[i][j][k - 1][0], dp[i][j][k - 1][1]) + moves);
}
}
}
}
int ans = min({dp[r][g][y][0], dp[r][g][y][1], dp[r][g][y][2]});
if(ans == INF) ans = -1;
cout << ans << '\n';
}
int main() {
ios_base :: sync_with_stdio(false);
cin.tie(0);
int t = 1;
//cin >> t;
while(t--) solve();
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
460 KB |
Output is correct |
7 |
Correct |
1 ms |
460 KB |
Output is correct |
8 |
Correct |
0 ms |
460 KB |
Output is correct |
9 |
Correct |
1 ms |
588 KB |
Output is correct |
10 |
Correct |
1 ms |
588 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
0 ms |
460 KB |
Output is correct |
13 |
Correct |
0 ms |
316 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
460 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
460 KB |
Output is correct |
7 |
Correct |
1 ms |
460 KB |
Output is correct |
8 |
Correct |
0 ms |
460 KB |
Output is correct |
9 |
Correct |
1 ms |
588 KB |
Output is correct |
10 |
Correct |
1 ms |
588 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
0 ms |
460 KB |
Output is correct |
13 |
Correct |
0 ms |
316 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
460 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
1 ms |
2252 KB |
Output is correct |
19 |
Correct |
1 ms |
1868 KB |
Output is correct |
20 |
Correct |
1 ms |
2252 KB |
Output is correct |
21 |
Correct |
1 ms |
2380 KB |
Output is correct |
22 |
Correct |
1 ms |
1612 KB |
Output is correct |
23 |
Correct |
2 ms |
2124 KB |
Output is correct |
24 |
Correct |
1 ms |
1612 KB |
Output is correct |
25 |
Correct |
2 ms |
3916 KB |
Output is correct |
26 |
Correct |
2 ms |
4044 KB |
Output is correct |
27 |
Correct |
1 ms |
3020 KB |
Output is correct |
28 |
Correct |
1 ms |
2252 KB |
Output is correct |
29 |
Correct |
1 ms |
2124 KB |
Output is correct |
30 |
Correct |
1 ms |
2252 KB |
Output is correct |
31 |
Correct |
1 ms |
1996 KB |
Output is correct |
32 |
Correct |
1 ms |
2380 KB |
Output is correct |
33 |
Correct |
2 ms |
3788 KB |
Output is correct |
34 |
Correct |
2 ms |
3532 KB |
Output is correct |
35 |
Correct |
1 ms |
2636 KB |
Output is correct |
36 |
Correct |
1 ms |
1868 KB |
Output is correct |
37 |
Correct |
1 ms |
1612 KB |
Output is correct |
38 |
Correct |
1 ms |
2124 KB |
Output is correct |
39 |
Correct |
1 ms |
2252 KB |
Output is correct |
40 |
Correct |
0 ms |
332 KB |
Output is correct |
41 |
Correct |
1 ms |
2124 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
57 ms |
162940 KB |
Output is correct |
3 |
Correct |
57 ms |
162092 KB |
Output is correct |
4 |
Correct |
59 ms |
162908 KB |
Output is correct |
5 |
Correct |
57 ms |
162884 KB |
Output is correct |
6 |
Correct |
60 ms |
162928 KB |
Output is correct |
7 |
Correct |
63 ms |
162028 KB |
Output is correct |
8 |
Correct |
57 ms |
162100 KB |
Output is correct |
9 |
Correct |
57 ms |
161336 KB |
Output is correct |
10 |
Correct |
57 ms |
162972 KB |
Output is correct |
11 |
Correct |
56 ms |
162884 KB |
Output is correct |
12 |
Correct |
16 ms |
43980 KB |
Output is correct |
13 |
Correct |
27 ms |
77124 KB |
Output is correct |
14 |
Correct |
40 ms |
111328 KB |
Output is correct |
15 |
Correct |
59 ms |
162856 KB |
Output is correct |
16 |
Correct |
57 ms |
162956 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
460 KB |
Output is correct |
7 |
Correct |
1 ms |
460 KB |
Output is correct |
8 |
Correct |
0 ms |
460 KB |
Output is correct |
9 |
Correct |
1 ms |
588 KB |
Output is correct |
10 |
Correct |
1 ms |
588 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
0 ms |
460 KB |
Output is correct |
13 |
Correct |
0 ms |
316 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
460 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
1 ms |
2252 KB |
Output is correct |
19 |
Correct |
1 ms |
1868 KB |
Output is correct |
20 |
Correct |
1 ms |
2252 KB |
Output is correct |
21 |
Correct |
1 ms |
2380 KB |
Output is correct |
22 |
Correct |
1 ms |
1612 KB |
Output is correct |
23 |
Correct |
2 ms |
2124 KB |
Output is correct |
24 |
Correct |
1 ms |
1612 KB |
Output is correct |
25 |
Correct |
2 ms |
3916 KB |
Output is correct |
26 |
Correct |
2 ms |
4044 KB |
Output is correct |
27 |
Correct |
1 ms |
3020 KB |
Output is correct |
28 |
Correct |
1 ms |
2252 KB |
Output is correct |
29 |
Correct |
1 ms |
2124 KB |
Output is correct |
30 |
Correct |
1 ms |
2252 KB |
Output is correct |
31 |
Correct |
1 ms |
1996 KB |
Output is correct |
32 |
Correct |
1 ms |
2380 KB |
Output is correct |
33 |
Correct |
2 ms |
3788 KB |
Output is correct |
34 |
Correct |
2 ms |
3532 KB |
Output is correct |
35 |
Correct |
1 ms |
2636 KB |
Output is correct |
36 |
Correct |
1 ms |
1868 KB |
Output is correct |
37 |
Correct |
1 ms |
1612 KB |
Output is correct |
38 |
Correct |
1 ms |
2124 KB |
Output is correct |
39 |
Correct |
1 ms |
2252 KB |
Output is correct |
40 |
Correct |
0 ms |
332 KB |
Output is correct |
41 |
Correct |
1 ms |
2124 KB |
Output is correct |
42 |
Correct |
0 ms |
332 KB |
Output is correct |
43 |
Correct |
57 ms |
162940 KB |
Output is correct |
44 |
Correct |
57 ms |
162092 KB |
Output is correct |
45 |
Correct |
59 ms |
162908 KB |
Output is correct |
46 |
Correct |
57 ms |
162884 KB |
Output is correct |
47 |
Correct |
60 ms |
162928 KB |
Output is correct |
48 |
Correct |
63 ms |
162028 KB |
Output is correct |
49 |
Correct |
57 ms |
162100 KB |
Output is correct |
50 |
Correct |
57 ms |
161336 KB |
Output is correct |
51 |
Correct |
57 ms |
162972 KB |
Output is correct |
52 |
Correct |
56 ms |
162884 KB |
Output is correct |
53 |
Correct |
16 ms |
43980 KB |
Output is correct |
54 |
Correct |
27 ms |
77124 KB |
Output is correct |
55 |
Correct |
40 ms |
111328 KB |
Output is correct |
56 |
Correct |
59 ms |
162856 KB |
Output is correct |
57 |
Correct |
57 ms |
162956 KB |
Output is correct |
58 |
Correct |
49 ms |
75432 KB |
Output is correct |
59 |
Correct |
55 ms |
95624 KB |
Output is correct |
60 |
Correct |
49 ms |
86852 KB |
Output is correct |
61 |
Correct |
50 ms |
84020 KB |
Output is correct |
62 |
Correct |
61 ms |
160512 KB |
Output is correct |
63 |
Correct |
62 ms |
160160 KB |
Output is correct |
64 |
Correct |
68 ms |
150100 KB |
Output is correct |
65 |
Correct |
65 ms |
138420 KB |
Output is correct |
66 |
Correct |
48 ms |
85176 KB |
Output is correct |
67 |
Correct |
47 ms |
81988 KB |
Output is correct |
68 |
Correct |
50 ms |
87776 KB |
Output is correct |
69 |
Correct |
48 ms |
84620 KB |
Output is correct |
70 |
Correct |
51 ms |
91660 KB |
Output is correct |
71 |
Correct |
49 ms |
83100 KB |
Output is correct |
72 |
Correct |
22 ms |
41164 KB |
Output is correct |
73 |
Correct |
4 ms |
2764 KB |
Output is correct |