#include <bits/stdc++.h>
using namespace std;
const int nx=65;
int n, dp[nx][nx][nx][3], 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;
}
//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;
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
464 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
0 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2392 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
1 ms |
2392 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
464 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
0 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2392 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
1 ms |
2392 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
2396 KB |
Output is correct |
19 |
Correct |
1 ms |
2396 KB |
Output is correct |
20 |
Correct |
1 ms |
2396 KB |
Output is correct |
21 |
Correct |
1 ms |
2396 KB |
Output is correct |
22 |
Correct |
1 ms |
2396 KB |
Output is correct |
23 |
Correct |
1 ms |
2396 KB |
Output is correct |
24 |
Correct |
1 ms |
2396 KB |
Output is correct |
25 |
Correct |
0 ms |
2396 KB |
Output is correct |
26 |
Correct |
1 ms |
2396 KB |
Output is correct |
27 |
Correct |
1 ms |
2396 KB |
Output is correct |
28 |
Correct |
1 ms |
2396 KB |
Output is correct |
29 |
Correct |
1 ms |
2396 KB |
Output is correct |
30 |
Correct |
1 ms |
2396 KB |
Output is correct |
31 |
Correct |
1 ms |
2396 KB |
Output is correct |
32 |
Correct |
1 ms |
2396 KB |
Output is correct |
33 |
Correct |
1 ms |
2508 KB |
Output is correct |
34 |
Correct |
1 ms |
2396 KB |
Output is correct |
35 |
Correct |
1 ms |
2396 KB |
Output is correct |
36 |
Correct |
1 ms |
2396 KB |
Output is correct |
37 |
Correct |
1 ms |
2396 KB |
Output is correct |
38 |
Correct |
1 ms |
2396 KB |
Output is correct |
39 |
Correct |
1 ms |
2396 KB |
Output is correct |
40 |
Correct |
0 ms |
348 KB |
Output is correct |
41 |
Correct |
1 ms |
2652 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Runtime error |
3 ms |
4956 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
464 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
0 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2392 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
1 ms |
2392 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
2396 KB |
Output is correct |
19 |
Correct |
1 ms |
2396 KB |
Output is correct |
20 |
Correct |
1 ms |
2396 KB |
Output is correct |
21 |
Correct |
1 ms |
2396 KB |
Output is correct |
22 |
Correct |
1 ms |
2396 KB |
Output is correct |
23 |
Correct |
1 ms |
2396 KB |
Output is correct |
24 |
Correct |
1 ms |
2396 KB |
Output is correct |
25 |
Correct |
0 ms |
2396 KB |
Output is correct |
26 |
Correct |
1 ms |
2396 KB |
Output is correct |
27 |
Correct |
1 ms |
2396 KB |
Output is correct |
28 |
Correct |
1 ms |
2396 KB |
Output is correct |
29 |
Correct |
1 ms |
2396 KB |
Output is correct |
30 |
Correct |
1 ms |
2396 KB |
Output is correct |
31 |
Correct |
1 ms |
2396 KB |
Output is correct |
32 |
Correct |
1 ms |
2396 KB |
Output is correct |
33 |
Correct |
1 ms |
2508 KB |
Output is correct |
34 |
Correct |
1 ms |
2396 KB |
Output is correct |
35 |
Correct |
1 ms |
2396 KB |
Output is correct |
36 |
Correct |
1 ms |
2396 KB |
Output is correct |
37 |
Correct |
1 ms |
2396 KB |
Output is correct |
38 |
Correct |
1 ms |
2396 KB |
Output is correct |
39 |
Correct |
1 ms |
2396 KB |
Output is correct |
40 |
Correct |
0 ms |
348 KB |
Output is correct |
41 |
Correct |
1 ms |
2652 KB |
Output is correct |
42 |
Correct |
0 ms |
348 KB |
Output is correct |
43 |
Runtime error |
3 ms |
4956 KB |
Execution killed with signal 11 |
44 |
Halted |
0 ms |
0 KB |
- |