#include <bits/stdc++.h>
using namespace std;
const int nx=405;
int n, mp[100], qs[3][nx], r[3][nx], res=INT_MAX;
string s;
int main()
{
cin.tie(NULL)->sync_with_stdio(false);
cin>>n>>s;
mp['R']=0; mp['G']=1; mp['Y']=2;
for (int i=1; i<=n; i++)
{
for (int j=0; j<3; j++) qs[j][i]=qs[j][i-1];
qs[mp[s[i-1]]][i]++;
r[mp[s[i-1]]][qs[mp[s[i-1]]][i]]=i;
}
int dp[qs[0][n]+1][qs[1][n]+1][qs[2][n]+1][3];
//for (int i=1; i<=n; i++) cout<<i<<' '<<qs[0][i]<<' '<<qs[1][i]<<' '<<qs[2][i]<<'\n';
//for (int i=1; i<=n; i++) cout<<i<<' '<<r[0][i]<<' '<<r[1][i]<<' '<<r[2][i]<<'\n';
for (int i=0; i<=qs[0][n]; i++)
{
for (int j=0; j<=qs[1][n]; j++)
{
for (int k=0; k<=qs[2][n]; k++)
{
dp[i][j][k][0]=dp[i][j][k][1]=dp[i][j][k][2]=1e6;
if (i==0&&j==0&&k==0) dp[i][j][k][0]=dp[i][j][k][1]=dp[i][j][k][2]=0;
if (i>0)
{
int c=r[0][i], f1=qs[1][c], f2=qs[2][c], cst=0;
if (f1>j) cst+=f1-j;
if (f2>k) cst+=f2-k;
dp[i][j][k][0]=min({dp[i-1][j][k][1]+cst, dp[i-1][j][k][2]+cst, dp[i][j][k][0]});
}
if (j>0)
{
int c=r[1][j], f1=qs[0][c], f2=qs[2][c], cst=0;
if (f1>i) cst+=f1-i;
if (f2>k) cst+=f2-k;
dp[i][j][k][1]=min({dp[i][j-1][k][0]+cst, dp[i][j-1][k][2]+cst, dp[i][j][k][1]});
}
if (k>0)
{
int c=r[2][k], f1=qs[0][c], f2=qs[1][c], cst=0;
if (f1>i) cst+=f1-i;
if (f2>j) cst+=f2-j;
//cout<<"here"<<' '<<cst<<' '<<c<<'\n';
dp[i][j][k][2]=min({dp[i][j][k-1][0]+cst, dp[i][j][k-1][1]+cst, dp[i][j][k][2]});
}
//cout<<i<<' '<<j<<' '<<k<<' '<<dp[i][j][k][0]<<' '<<dp[i][j][k][1]<<' '<<dp[i][j][k][2]<<'\n';
}
}
}
for (int i=0; i<3; i++) res=min(res, dp[qs[0][n]][qs[1][n]][qs[2][n]][i]);
if (res==1e6) cout<<-1;
else cout<<res;
}
Compilation message
joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:17:21: warning: array subscript has type 'char' [-Wchar-subscripts]
17 | qs[mp[s[i-1]]][i]++;
| ^
joi2019_ho_t3.cpp:18:20: warning: array subscript has type 'char' [-Wchar-subscripts]
18 | r[mp[s[i-1]]][qs[mp[s[i-1]]][i]]=i;
| ^
joi2019_ho_t3.cpp:18:35: warning: array subscript has type 'char' [-Wchar-subscripts]
18 | r[mp[s[i-1]]][qs[mp[s[i-1]]][i]]=i;
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 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 |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
600 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 |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 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 |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 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 |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
600 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 |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 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 |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
1 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
0 ms |
344 KB |
Output is correct |
40 |
Correct |
0 ms |
344 KB |
Output is correct |
41 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
860 KB |
Output is correct |
3 |
Correct |
1 ms |
860 KB |
Output is correct |
4 |
Correct |
1 ms |
860 KB |
Output is correct |
5 |
Correct |
1 ms |
860 KB |
Output is correct |
6 |
Correct |
1 ms |
860 KB |
Output is correct |
7 |
Correct |
1 ms |
860 KB |
Output is correct |
8 |
Correct |
1 ms |
860 KB |
Output is correct |
9 |
Correct |
1 ms |
860 KB |
Output is correct |
10 |
Correct |
1 ms |
860 KB |
Output is correct |
11 |
Correct |
1 ms |
860 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
600 KB |
Output is correct |
14 |
Correct |
1 ms |
604 KB |
Output is correct |
15 |
Correct |
1 ms |
860 KB |
Output is correct |
16 |
Correct |
1 ms |
856 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 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 |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
600 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 |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 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 |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
1 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
0 ms |
344 KB |
Output is correct |
40 |
Correct |
0 ms |
344 KB |
Output is correct |
41 |
Correct |
0 ms |
348 KB |
Output is correct |
42 |
Correct |
1 ms |
348 KB |
Output is correct |
43 |
Correct |
1 ms |
860 KB |
Output is correct |
44 |
Correct |
1 ms |
860 KB |
Output is correct |
45 |
Correct |
1 ms |
860 KB |
Output is correct |
46 |
Correct |
1 ms |
860 KB |
Output is correct |
47 |
Correct |
1 ms |
860 KB |
Output is correct |
48 |
Correct |
1 ms |
860 KB |
Output is correct |
49 |
Correct |
1 ms |
860 KB |
Output is correct |
50 |
Correct |
1 ms |
860 KB |
Output is correct |
51 |
Correct |
1 ms |
860 KB |
Output is correct |
52 |
Correct |
1 ms |
860 KB |
Output is correct |
53 |
Correct |
0 ms |
348 KB |
Output is correct |
54 |
Correct |
0 ms |
600 KB |
Output is correct |
55 |
Correct |
1 ms |
604 KB |
Output is correct |
56 |
Correct |
1 ms |
860 KB |
Output is correct |
57 |
Correct |
1 ms |
856 KB |
Output is correct |
58 |
Correct |
33 ms |
28504 KB |
Output is correct |
59 |
Correct |
34 ms |
28508 KB |
Output is correct |
60 |
Correct |
32 ms |
28252 KB |
Output is correct |
61 |
Correct |
34 ms |
28508 KB |
Output is correct |
62 |
Correct |
3 ms |
2648 KB |
Output is correct |
63 |
Correct |
5 ms |
4444 KB |
Output is correct |
64 |
Correct |
18 ms |
14172 KB |
Output is correct |
65 |
Correct |
23 ms |
20316 KB |
Output is correct |
66 |
Correct |
35 ms |
28252 KB |
Output is correct |
67 |
Correct |
33 ms |
28252 KB |
Output is correct |
68 |
Correct |
33 ms |
28508 KB |
Output is correct |
69 |
Correct |
33 ms |
28760 KB |
Output is correct |
70 |
Correct |
34 ms |
28764 KB |
Output is correct |
71 |
Correct |
33 ms |
28152 KB |
Output is correct |
72 |
Correct |
9 ms |
7424 KB |
Output is correct |
73 |
Correct |
3 ms |
2136 KB |
Output is correct |