#include <bits/stdc++.h>
using namespace std;
int a[405][3][405][405];
array<int, 3> p[405];
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
int n; cin >> n;
vector<int> b[3];
string s; cin>>s;
for(int l=0; l<3; l++) b[l].push_back(0);
for(int i = 1; i <=n; i++){
p[i]=p[i-1];
if(s[i-1]=='R') b[0].push_back(i), p[i][0]++;
if(s[i-1]=='Y') b[1].push_back(i), p[i][1]++;
if(s[i-1]=='G') b[2].push_back(i), p[i][2]++;
}
for(int i=1; i<=n; i++){
for(int l=0; l<3; l++){
for(int j=0; j<=n; j++)
{
for(int f=0; f<=n; f++)
{
a[i][l][j][f]=1e9;
}
}
}
}
for(int l=0; l<3; l++) b[l].push_back(n+1);
int ans=1e9;
for(int i=1; i<=n; i++){
for(int l=0; l<=i&&l<b[0].size()-1; l++){
for(int j=0; j+l<=i&&j<b[1].size()-1; j++){
int k=i-(j+l);
if(k<b[2].size()-1)
for(int t=0; t<3; t++){
int dist=0;
int f=0;
if(t==0) f=l;
else if(t==1) f=j;
else f=k;
dist+=max(0, p[b[t][f]][0]-l);
dist+=max(0, p[b[t][f]][1]-j);
dist+=max(0, p[b[t][f]][2]-k);
for(int g=0; g<3&&f; g++){
if(t==0&&g!=t&&(l>0||i==1))
a[i][t][l][j]=min(a[i-1][g][max(0, l-1)][j]+dist, a[i][t][l][j]);
if(t==1&&g!=t&&(j>0||i==1))
a[i][t][l][j]=min(a[i-1][g][l][max(0, j-1)]+dist, a[i][t][l][j]);
if(t==2&&g!=t&&(k>0||i==1))
a[i][t][l][j]=min(a[i-1][g][l][j]+dist, a[i][t][l][j]);
}
if(i==n) ans=min(ans, a[i][t][l][j]);
}
}
}
}
if(ans>=1e9) cout<<-1;
else cout<<ans;
}
Compilation message
joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:45:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
45 | for(int l=0; l<=i&&l<b[0].size()-1; l++){
| ~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:46:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
46 | for(int j=0; j+l<=i&&j<b[1].size()-1; j++){
| ~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:48:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
48 | if(k<b[2].size()-1)
| ~^~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
852 KB |
Output is correct |
5 |
Correct |
1 ms |
1620 KB |
Output is correct |
6 |
Correct |
1 ms |
1620 KB |
Output is correct |
7 |
Correct |
1 ms |
1620 KB |
Output is correct |
8 |
Correct |
1 ms |
1620 KB |
Output is correct |
9 |
Correct |
1 ms |
1528 KB |
Output is correct |
10 |
Correct |
1 ms |
1620 KB |
Output is correct |
11 |
Correct |
1 ms |
1620 KB |
Output is correct |
12 |
Correct |
1 ms |
1620 KB |
Output is correct |
13 |
Correct |
1 ms |
1620 KB |
Output is correct |
14 |
Correct |
1 ms |
1364 KB |
Output is correct |
15 |
Correct |
1 ms |
1620 KB |
Output is correct |
16 |
Correct |
1 ms |
1620 KB |
Output is correct |
17 |
Correct |
1 ms |
1364 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
852 KB |
Output is correct |
5 |
Correct |
1 ms |
1620 KB |
Output is correct |
6 |
Correct |
1 ms |
1620 KB |
Output is correct |
7 |
Correct |
1 ms |
1620 KB |
Output is correct |
8 |
Correct |
1 ms |
1620 KB |
Output is correct |
9 |
Correct |
1 ms |
1528 KB |
Output is correct |
10 |
Correct |
1 ms |
1620 KB |
Output is correct |
11 |
Correct |
1 ms |
1620 KB |
Output is correct |
12 |
Correct |
1 ms |
1620 KB |
Output is correct |
13 |
Correct |
1 ms |
1620 KB |
Output is correct |
14 |
Correct |
1 ms |
1364 KB |
Output is correct |
15 |
Correct |
1 ms |
1620 KB |
Output is correct |
16 |
Correct |
1 ms |
1620 KB |
Output is correct |
17 |
Correct |
1 ms |
1364 KB |
Output is correct |
18 |
Correct |
8 ms |
18388 KB |
Output is correct |
19 |
Correct |
8 ms |
18388 KB |
Output is correct |
20 |
Correct |
10 ms |
18516 KB |
Output is correct |
21 |
Correct |
8 ms |
18388 KB |
Output is correct |
22 |
Correct |
8 ms |
18388 KB |
Output is correct |
23 |
Correct |
8 ms |
18360 KB |
Output is correct |
24 |
Correct |
8 ms |
18388 KB |
Output is correct |
25 |
Correct |
8 ms |
18348 KB |
Output is correct |
26 |
Correct |
7 ms |
18388 KB |
Output is correct |
27 |
Correct |
9 ms |
18388 KB |
Output is correct |
28 |
Correct |
8 ms |
18292 KB |
Output is correct |
29 |
Correct |
8 ms |
18388 KB |
Output is correct |
30 |
Correct |
9 ms |
18400 KB |
Output is correct |
31 |
Correct |
9 ms |
18456 KB |
Output is correct |
32 |
Correct |
9 ms |
18360 KB |
Output is correct |
33 |
Correct |
8 ms |
17748 KB |
Output is correct |
34 |
Correct |
8 ms |
17748 KB |
Output is correct |
35 |
Correct |
8 ms |
17236 KB |
Output is correct |
36 |
Correct |
8 ms |
17748 KB |
Output is correct |
37 |
Correct |
8 ms |
16596 KB |
Output is correct |
38 |
Correct |
9 ms |
18388 KB |
Output is correct |
39 |
Correct |
8 ms |
18388 KB |
Output is correct |
40 |
Correct |
8 ms |
17748 KB |
Output is correct |
41 |
Correct |
8 ms |
18388 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
375 ms |
767876 KB |
Output is correct |
3 |
Correct |
340 ms |
764056 KB |
Output is correct |
4 |
Correct |
335 ms |
767752 KB |
Output is correct |
5 |
Correct |
337 ms |
767872 KB |
Output is correct |
6 |
Correct |
335 ms |
767820 KB |
Output is correct |
7 |
Correct |
338 ms |
764080 KB |
Output is correct |
8 |
Correct |
336 ms |
764088 KB |
Output is correct |
9 |
Correct |
331 ms |
760148 KB |
Output is correct |
10 |
Correct |
346 ms |
767856 KB |
Output is correct |
11 |
Correct |
348 ms |
767796 KB |
Output is correct |
12 |
Correct |
102 ms |
205376 KB |
Output is correct |
13 |
Correct |
159 ms |
361868 KB |
Output is correct |
14 |
Correct |
228 ms |
523632 KB |
Output is correct |
15 |
Correct |
362 ms |
767876 KB |
Output is correct |
16 |
Correct |
341 ms |
767852 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
852 KB |
Output is correct |
5 |
Correct |
1 ms |
1620 KB |
Output is correct |
6 |
Correct |
1 ms |
1620 KB |
Output is correct |
7 |
Correct |
1 ms |
1620 KB |
Output is correct |
8 |
Correct |
1 ms |
1620 KB |
Output is correct |
9 |
Correct |
1 ms |
1528 KB |
Output is correct |
10 |
Correct |
1 ms |
1620 KB |
Output is correct |
11 |
Correct |
1 ms |
1620 KB |
Output is correct |
12 |
Correct |
1 ms |
1620 KB |
Output is correct |
13 |
Correct |
1 ms |
1620 KB |
Output is correct |
14 |
Correct |
1 ms |
1364 KB |
Output is correct |
15 |
Correct |
1 ms |
1620 KB |
Output is correct |
16 |
Correct |
1 ms |
1620 KB |
Output is correct |
17 |
Correct |
1 ms |
1364 KB |
Output is correct |
18 |
Correct |
8 ms |
18388 KB |
Output is correct |
19 |
Correct |
8 ms |
18388 KB |
Output is correct |
20 |
Correct |
10 ms |
18516 KB |
Output is correct |
21 |
Correct |
8 ms |
18388 KB |
Output is correct |
22 |
Correct |
8 ms |
18388 KB |
Output is correct |
23 |
Correct |
8 ms |
18360 KB |
Output is correct |
24 |
Correct |
8 ms |
18388 KB |
Output is correct |
25 |
Correct |
8 ms |
18348 KB |
Output is correct |
26 |
Correct |
7 ms |
18388 KB |
Output is correct |
27 |
Correct |
9 ms |
18388 KB |
Output is correct |
28 |
Correct |
8 ms |
18292 KB |
Output is correct |
29 |
Correct |
8 ms |
18388 KB |
Output is correct |
30 |
Correct |
9 ms |
18400 KB |
Output is correct |
31 |
Correct |
9 ms |
18456 KB |
Output is correct |
32 |
Correct |
9 ms |
18360 KB |
Output is correct |
33 |
Correct |
8 ms |
17748 KB |
Output is correct |
34 |
Correct |
8 ms |
17748 KB |
Output is correct |
35 |
Correct |
8 ms |
17236 KB |
Output is correct |
36 |
Correct |
8 ms |
17748 KB |
Output is correct |
37 |
Correct |
8 ms |
16596 KB |
Output is correct |
38 |
Correct |
9 ms |
18388 KB |
Output is correct |
39 |
Correct |
8 ms |
18388 KB |
Output is correct |
40 |
Correct |
8 ms |
17748 KB |
Output is correct |
41 |
Correct |
8 ms |
18388 KB |
Output is correct |
42 |
Correct |
1 ms |
340 KB |
Output is correct |
43 |
Correct |
375 ms |
767876 KB |
Output is correct |
44 |
Correct |
340 ms |
764056 KB |
Output is correct |
45 |
Correct |
335 ms |
767752 KB |
Output is correct |
46 |
Correct |
337 ms |
767872 KB |
Output is correct |
47 |
Correct |
335 ms |
767820 KB |
Output is correct |
48 |
Correct |
338 ms |
764080 KB |
Output is correct |
49 |
Correct |
336 ms |
764088 KB |
Output is correct |
50 |
Correct |
331 ms |
760148 KB |
Output is correct |
51 |
Correct |
346 ms |
767856 KB |
Output is correct |
52 |
Correct |
348 ms |
767796 KB |
Output is correct |
53 |
Correct |
102 ms |
205376 KB |
Output is correct |
54 |
Correct |
159 ms |
361868 KB |
Output is correct |
55 |
Correct |
228 ms |
523632 KB |
Output is correct |
56 |
Correct |
362 ms |
767876 KB |
Output is correct |
57 |
Correct |
341 ms |
767852 KB |
Output is correct |
58 |
Correct |
430 ms |
767972 KB |
Output is correct |
59 |
Correct |
430 ms |
767872 KB |
Output is correct |
60 |
Correct |
425 ms |
760248 KB |
Output is correct |
61 |
Correct |
421 ms |
764024 KB |
Output is correct |
62 |
Correct |
356 ms |
767924 KB |
Output is correct |
63 |
Correct |
372 ms |
767828 KB |
Output is correct |
64 |
Correct |
390 ms |
767800 KB |
Output is correct |
65 |
Correct |
398 ms |
764120 KB |
Output is correct |
66 |
Correct |
424 ms |
756488 KB |
Output is correct |
67 |
Correct |
425 ms |
767868 KB |
Output is correct |
68 |
Correct |
433 ms |
763980 KB |
Output is correct |
69 |
Correct |
424 ms |
767824 KB |
Output is correct |
70 |
Correct |
424 ms |
767820 KB |
Output is correct |
71 |
Correct |
429 ms |
764052 KB |
Output is correct |
72 |
Correct |
376 ms |
764000 KB |
Output is correct |
73 |
Correct |
343 ms |
767800 KB |
Output is correct |