#include<bits/stdc++.h>
using namespace std;
int N,tr,tg,ty;
string s;
vector<int>cnt[4];
int dp[405][405][405][4];
int lol[405][4];
int go(int r,int g,int y,int l){
if(dp[r][g][y][l]!=-1) return dp[r][g][y][l];
int &ans=dp[r][g][y][l];
int n=r+g+y;
if(n==0) return 0;
ans=1e9;
int extras=0;
if(l==1&&r>0){
int lb1=min(g,lol[cnt[1][r-1]][2]);
int lb2=min(y,lol[cnt[1][r-1]][3]);
extras=g+y-lb1-lb2;
int add=extras+cnt[1][r-1]-n+1;
ans=min(ans,go(r-1,g,y,2)+add);
ans=min(ans,go(r-1,g,y,3)+add);
}
else if(l==2&&g>0){
int lb1=min(r,lol[cnt[2][g-1]][1]);
int lb2=min(y,lol[cnt[2][g-1]][3]);
extras=r+y-lb1-lb2;
int add=extras+cnt[2][g-1]-n+1;
ans=min(ans,go(r,g-1,y,1)+add);
ans=min(ans,go(r,g-1,y,3)+add);
}
else if(l==3&&y>0){
int lb1=min(r,lol[cnt[3][y-1]][1]);
int lb2=min(g,lol[cnt[3][y-1]][2]);
extras=g+r-lb1-lb2;
int add=extras+cnt[3][y-1]-n+1;
ans=min(ans,go(r,g,y-1,1)+add);
ans=min(ans,go(r,g,y-1,2)+add);
}
return ans;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
cin>>N>>s;
for(int i=0;i<N;i++){
if(s[i]=='R'){
tr++;
cnt[1].push_back(i);
}
else if(s[i]=='G'){
tg++;
cnt[2].push_back(i);
}
else{
ty++;
cnt[3].push_back(i);
}
}
for(int i=0;i<=tr;i++){
for(int j=0;j<=tg;j++){
for(int k=0;k<=ty;k++){
for(int l=0;l<4;l++){
dp[i][j][k][l]=-1;
}
}
}
}
for(int t=1;t<=3;t++){
int last=0;
for(int i=0;i<cnt[t].size();i++){
for(int j=last;j<=cnt[t][i];j++){
lol[j][t]=i;
}
last=cnt[t][i]+1;
}
for(int j=last;j<=402;j++){
lol[j][t]=cnt[t].size();
}
}
int ans=min({go(tr,tg,ty,1),go(tr,tg,ty,2),go(tr,tg,ty,3)});
if(ans==1e9||ans==-1) cout<<-1;
else cout<<ans;
}
Compilation message
joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:71:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<cnt[t].size();i++){
~^~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
512 KB |
Output is correct |
5 |
Correct |
2 ms |
512 KB |
Output is correct |
6 |
Correct |
2 ms |
512 KB |
Output is correct |
7 |
Correct |
2 ms |
512 KB |
Output is correct |
8 |
Correct |
2 ms |
512 KB |
Output is correct |
9 |
Correct |
2 ms |
640 KB |
Output is correct |
10 |
Correct |
2 ms |
640 KB |
Output is correct |
11 |
Correct |
2 ms |
512 KB |
Output is correct |
12 |
Correct |
3 ms |
512 KB |
Output is correct |
13 |
Correct |
2 ms |
512 KB |
Output is correct |
14 |
Correct |
2 ms |
512 KB |
Output is correct |
15 |
Correct |
2 ms |
512 KB |
Output is correct |
16 |
Correct |
2 ms |
512 KB |
Output is correct |
17 |
Correct |
3 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
512 KB |
Output is correct |
5 |
Correct |
2 ms |
512 KB |
Output is correct |
6 |
Correct |
2 ms |
512 KB |
Output is correct |
7 |
Correct |
2 ms |
512 KB |
Output is correct |
8 |
Correct |
2 ms |
512 KB |
Output is correct |
9 |
Correct |
2 ms |
640 KB |
Output is correct |
10 |
Correct |
2 ms |
640 KB |
Output is correct |
11 |
Correct |
2 ms |
512 KB |
Output is correct |
12 |
Correct |
3 ms |
512 KB |
Output is correct |
13 |
Correct |
2 ms |
512 KB |
Output is correct |
14 |
Correct |
2 ms |
512 KB |
Output is correct |
15 |
Correct |
2 ms |
512 KB |
Output is correct |
16 |
Correct |
2 ms |
512 KB |
Output is correct |
17 |
Correct |
3 ms |
384 KB |
Output is correct |
18 |
Correct |
4 ms |
2432 KB |
Output is correct |
19 |
Correct |
4 ms |
2012 KB |
Output is correct |
20 |
Correct |
7 ms |
2304 KB |
Output is correct |
21 |
Correct |
4 ms |
2432 KB |
Output is correct |
22 |
Correct |
3 ms |
1792 KB |
Output is correct |
23 |
Correct |
4 ms |
2176 KB |
Output is correct |
24 |
Correct |
3 ms |
1664 KB |
Output is correct |
25 |
Correct |
5 ms |
3968 KB |
Output is correct |
26 |
Correct |
5 ms |
4224 KB |
Output is correct |
27 |
Correct |
4 ms |
3200 KB |
Output is correct |
28 |
Correct |
4 ms |
2432 KB |
Output is correct |
29 |
Correct |
3 ms |
2304 KB |
Output is correct |
30 |
Correct |
4 ms |
2432 KB |
Output is correct |
31 |
Correct |
4 ms |
2048 KB |
Output is correct |
32 |
Correct |
4 ms |
2432 KB |
Output is correct |
33 |
Correct |
5 ms |
3840 KB |
Output is correct |
34 |
Correct |
4 ms |
3584 KB |
Output is correct |
35 |
Correct |
4 ms |
2816 KB |
Output is correct |
36 |
Correct |
4 ms |
2048 KB |
Output is correct |
37 |
Correct |
3 ms |
1792 KB |
Output is correct |
38 |
Correct |
4 ms |
2176 KB |
Output is correct |
39 |
Correct |
4 ms |
2432 KB |
Output is correct |
40 |
Correct |
2 ms |
384 KB |
Output is correct |
41 |
Correct |
4 ms |
2304 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
121 ms |
162936 KB |
Output is correct |
3 |
Correct |
110 ms |
162184 KB |
Output is correct |
4 |
Correct |
111 ms |
162984 KB |
Output is correct |
5 |
Correct |
109 ms |
162908 KB |
Output is correct |
6 |
Correct |
110 ms |
163016 KB |
Output is correct |
7 |
Correct |
112 ms |
162168 KB |
Output is correct |
8 |
Correct |
109 ms |
162172 KB |
Output is correct |
9 |
Correct |
107 ms |
161400 KB |
Output is correct |
10 |
Correct |
134 ms |
162936 KB |
Output is correct |
11 |
Correct |
110 ms |
162940 KB |
Output is correct |
12 |
Correct |
32 ms |
44152 KB |
Output is correct |
13 |
Correct |
54 ms |
77304 KB |
Output is correct |
14 |
Correct |
77 ms |
111480 KB |
Output is correct |
15 |
Correct |
109 ms |
162936 KB |
Output is correct |
16 |
Correct |
116 ms |
163064 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
512 KB |
Output is correct |
5 |
Correct |
2 ms |
512 KB |
Output is correct |
6 |
Correct |
2 ms |
512 KB |
Output is correct |
7 |
Correct |
2 ms |
512 KB |
Output is correct |
8 |
Correct |
2 ms |
512 KB |
Output is correct |
9 |
Correct |
2 ms |
640 KB |
Output is correct |
10 |
Correct |
2 ms |
640 KB |
Output is correct |
11 |
Correct |
2 ms |
512 KB |
Output is correct |
12 |
Correct |
3 ms |
512 KB |
Output is correct |
13 |
Correct |
2 ms |
512 KB |
Output is correct |
14 |
Correct |
2 ms |
512 KB |
Output is correct |
15 |
Correct |
2 ms |
512 KB |
Output is correct |
16 |
Correct |
2 ms |
512 KB |
Output is correct |
17 |
Correct |
3 ms |
384 KB |
Output is correct |
18 |
Correct |
4 ms |
2432 KB |
Output is correct |
19 |
Correct |
4 ms |
2012 KB |
Output is correct |
20 |
Correct |
7 ms |
2304 KB |
Output is correct |
21 |
Correct |
4 ms |
2432 KB |
Output is correct |
22 |
Correct |
3 ms |
1792 KB |
Output is correct |
23 |
Correct |
4 ms |
2176 KB |
Output is correct |
24 |
Correct |
3 ms |
1664 KB |
Output is correct |
25 |
Correct |
5 ms |
3968 KB |
Output is correct |
26 |
Correct |
5 ms |
4224 KB |
Output is correct |
27 |
Correct |
4 ms |
3200 KB |
Output is correct |
28 |
Correct |
4 ms |
2432 KB |
Output is correct |
29 |
Correct |
3 ms |
2304 KB |
Output is correct |
30 |
Correct |
4 ms |
2432 KB |
Output is correct |
31 |
Correct |
4 ms |
2048 KB |
Output is correct |
32 |
Correct |
4 ms |
2432 KB |
Output is correct |
33 |
Correct |
5 ms |
3840 KB |
Output is correct |
34 |
Correct |
4 ms |
3584 KB |
Output is correct |
35 |
Correct |
4 ms |
2816 KB |
Output is correct |
36 |
Correct |
4 ms |
2048 KB |
Output is correct |
37 |
Correct |
3 ms |
1792 KB |
Output is correct |
38 |
Correct |
4 ms |
2176 KB |
Output is correct |
39 |
Correct |
4 ms |
2432 KB |
Output is correct |
40 |
Correct |
2 ms |
384 KB |
Output is correct |
41 |
Correct |
4 ms |
2304 KB |
Output is correct |
42 |
Correct |
2 ms |
384 KB |
Output is correct |
43 |
Correct |
121 ms |
162936 KB |
Output is correct |
44 |
Correct |
110 ms |
162184 KB |
Output is correct |
45 |
Correct |
111 ms |
162984 KB |
Output is correct |
46 |
Correct |
109 ms |
162908 KB |
Output is correct |
47 |
Correct |
110 ms |
163016 KB |
Output is correct |
48 |
Correct |
112 ms |
162168 KB |
Output is correct |
49 |
Correct |
109 ms |
162172 KB |
Output is correct |
50 |
Correct |
107 ms |
161400 KB |
Output is correct |
51 |
Correct |
134 ms |
162936 KB |
Output is correct |
52 |
Correct |
110 ms |
162940 KB |
Output is correct |
53 |
Correct |
32 ms |
44152 KB |
Output is correct |
54 |
Correct |
54 ms |
77304 KB |
Output is correct |
55 |
Correct |
77 ms |
111480 KB |
Output is correct |
56 |
Correct |
109 ms |
162936 KB |
Output is correct |
57 |
Correct |
116 ms |
163064 KB |
Output is correct |
58 |
Correct |
168 ms |
101500 KB |
Output is correct |
59 |
Correct |
183 ms |
118936 KB |
Output is correct |
60 |
Correct |
183 ms |
111224 KB |
Output is correct |
61 |
Correct |
186 ms |
109176 KB |
Output is correct |
62 |
Correct |
115 ms |
161272 KB |
Output is correct |
63 |
Correct |
118 ms |
161416 KB |
Output is correct |
64 |
Correct |
121 ms |
154616 KB |
Output is correct |
65 |
Correct |
138 ms |
145260 KB |
Output is correct |
66 |
Correct |
181 ms |
109560 KB |
Output is correct |
67 |
Correct |
177 ms |
106744 KB |
Output is correct |
68 |
Correct |
182 ms |
112376 KB |
Output is correct |
69 |
Correct |
185 ms |
109824 KB |
Output is correct |
70 |
Correct |
187 ms |
115752 KB |
Output is correct |
71 |
Correct |
180 ms |
107640 KB |
Output is correct |
72 |
Correct |
37 ms |
44920 KB |
Output is correct |
73 |
Correct |
5 ms |
3712 KB |
Output is correct |