/*input
20
YYGYYYGGGGRGYYGRGRYG
*/
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef tree<long long, null_type, less_equal<long long>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
//order_of_key #of elements less than x
// find_by_order kth element
typedef long long int ll;
#define ld double
#define pii pair<int,int>
#define f first
#define s second
#define pb push_back
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define FILL(n,x) memset(n,x,sizeof(n))
#define ALL(_a) _a.begin(),_a.end()
#define sz(x) (int)x.size()
const ll maxn=400+5;
const ll maxlg=__lg(maxn)+2;
const ll INF64=4e18;
const int INF=0x3f3f3f3f;
const ll MOD=ll(1e9+7);
const ld PI=acos(-1);
const ld eps=1e-9;
#define lowb(x) x&(-x)
#define MNTO(x,y) x=min(x,(__typeof__(x))y)
#define MXTO(x,y) x=max(x,(__typeof__(x))y)
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#define GET_POS(c,x) (lower_bound(c.begin(),c.end(),x)-c.begin())
ll mult(ll a,ll b){
return ((a%MOD)*(b%MOD))%MOD;
}
ll mypow(ll a,ll b){
if(b<=0) return 1;
ll res=1LL;
while(b){
if(b&1) res=mult(res,a);
a=mult(a,a);
b>>=1;
}
return res;
}
int arr[maxn];
int dp[maxn][maxn][maxn][3];
int c[3];
int pos[3][maxn];
int cnt[3][maxn];
int main(){
ios::sync_with_stdio(false),cin.tie(0);
int n;
string s;
cin>>n>>s;
REP(i,n){
char x=s[i];
int z=0;
if(s[i]=='G') z=1;
if(s[i]=='Y') z=2;
REP(j,3) cnt[j][i]=c[j];
pos[z][c[z]]=i;
c[z]++;
}
REP(i,c[0]+1) REP(j,c[1]+1) REP(k,c[2]+1) REP(a,3) dp[i][j][k][a]=INF;
REP(a,3) dp[0][0][0][a]=0;
REP(i,c[0]+1){
REP(j,c[1]+1){
REP(k,c[2]+1){
REP(z,3){
if(z){
int p=pos[0][i];
MNTO(dp[i+1][j][k][0],dp[i][j][k][z]+max(0,cnt[1][p]-j)+max(0,cnt[2][p]-k));
}
if(z!=1){
int p=pos[1][j];
MNTO(dp[i][j+1][k][1],dp[i][j][k][z]+max(0,cnt[0][p]-i)+max(0,cnt[2][p]-k));
}
if(z!=2){
int p=pos[2][k];
MNTO(dp[i][j][k+1][2],dp[i][j][k][z]+max(0,cnt[1][p]-j)+max(0,cnt[0][p]-i));
}
}
}
}
}
int ans=INF;
REP(a,3) MNTO(ans,dp[c[0]][c[1]][c[2]][a]);
if(ans==INF) ans=-1;
cout<<ans;
}
Compilation message
joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:60:8: warning: unused variable 'x' [-Wunused-variable]
60 | char x=s[i];
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
460 KB |
Output is correct |
7 |
Correct |
1 ms |
460 KB |
Output is correct |
8 |
Correct |
1 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 |
588 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
0 ms |
460 KB |
Output is correct |
16 |
Correct |
0 ms |
460 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
460 KB |
Output is correct |
7 |
Correct |
1 ms |
460 KB |
Output is correct |
8 |
Correct |
1 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 |
588 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
0 ms |
460 KB |
Output is correct |
16 |
Correct |
0 ms |
460 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
2508 KB |
Output is correct |
19 |
Correct |
1 ms |
1996 KB |
Output is correct |
20 |
Correct |
1 ms |
2380 KB |
Output is correct |
21 |
Correct |
1 ms |
2508 KB |
Output is correct |
22 |
Correct |
1 ms |
1868 KB |
Output is correct |
23 |
Correct |
1 ms |
2252 KB |
Output is correct |
24 |
Correct |
1 ms |
1740 KB |
Output is correct |
25 |
Correct |
2 ms |
4172 KB |
Output is correct |
26 |
Correct |
2 ms |
4428 KB |
Output is correct |
27 |
Correct |
2 ms |
3276 KB |
Output is correct |
28 |
Correct |
2 ms |
2508 KB |
Output is correct |
29 |
Correct |
2 ms |
2380 KB |
Output is correct |
30 |
Correct |
2 ms |
2380 KB |
Output is correct |
31 |
Correct |
1 ms |
2124 KB |
Output is correct |
32 |
Correct |
2 ms |
2508 KB |
Output is correct |
33 |
Correct |
2 ms |
4044 KB |
Output is correct |
34 |
Correct |
2 ms |
3788 KB |
Output is correct |
35 |
Correct |
2 ms |
2892 KB |
Output is correct |
36 |
Correct |
1 ms |
1996 KB |
Output is correct |
37 |
Correct |
1 ms |
1868 KB |
Output is correct |
38 |
Correct |
2 ms |
2252 KB |
Output is correct |
39 |
Correct |
2 ms |
2508 KB |
Output is correct |
40 |
Correct |
1 ms |
460 KB |
Output is correct |
41 |
Correct |
1 ms |
2380 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
69 ms |
165016 KB |
Output is correct |
3 |
Correct |
68 ms |
164228 KB |
Output is correct |
4 |
Correct |
72 ms |
164976 KB |
Output is correct |
5 |
Correct |
68 ms |
165060 KB |
Output is correct |
6 |
Correct |
70 ms |
165032 KB |
Output is correct |
7 |
Correct |
67 ms |
164132 KB |
Output is correct |
8 |
Correct |
68 ms |
164264 KB |
Output is correct |
9 |
Correct |
67 ms |
163396 KB |
Output is correct |
10 |
Correct |
67 ms |
165072 KB |
Output is correct |
11 |
Correct |
70 ms |
165064 KB |
Output is correct |
12 |
Correct |
18 ms |
45028 KB |
Output is correct |
13 |
Correct |
32 ms |
78452 KB |
Output is correct |
14 |
Correct |
48 ms |
113016 KB |
Output is correct |
15 |
Correct |
70 ms |
165044 KB |
Output is correct |
16 |
Correct |
71 ms |
164932 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
460 KB |
Output is correct |
7 |
Correct |
1 ms |
460 KB |
Output is correct |
8 |
Correct |
1 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 |
588 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
460 KB |
Output is correct |
15 |
Correct |
0 ms |
460 KB |
Output is correct |
16 |
Correct |
0 ms |
460 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
2508 KB |
Output is correct |
19 |
Correct |
1 ms |
1996 KB |
Output is correct |
20 |
Correct |
1 ms |
2380 KB |
Output is correct |
21 |
Correct |
1 ms |
2508 KB |
Output is correct |
22 |
Correct |
1 ms |
1868 KB |
Output is correct |
23 |
Correct |
1 ms |
2252 KB |
Output is correct |
24 |
Correct |
1 ms |
1740 KB |
Output is correct |
25 |
Correct |
2 ms |
4172 KB |
Output is correct |
26 |
Correct |
2 ms |
4428 KB |
Output is correct |
27 |
Correct |
2 ms |
3276 KB |
Output is correct |
28 |
Correct |
2 ms |
2508 KB |
Output is correct |
29 |
Correct |
2 ms |
2380 KB |
Output is correct |
30 |
Correct |
2 ms |
2380 KB |
Output is correct |
31 |
Correct |
1 ms |
2124 KB |
Output is correct |
32 |
Correct |
2 ms |
2508 KB |
Output is correct |
33 |
Correct |
2 ms |
4044 KB |
Output is correct |
34 |
Correct |
2 ms |
3788 KB |
Output is correct |
35 |
Correct |
2 ms |
2892 KB |
Output is correct |
36 |
Correct |
1 ms |
1996 KB |
Output is correct |
37 |
Correct |
1 ms |
1868 KB |
Output is correct |
38 |
Correct |
2 ms |
2252 KB |
Output is correct |
39 |
Correct |
2 ms |
2508 KB |
Output is correct |
40 |
Correct |
1 ms |
460 KB |
Output is correct |
41 |
Correct |
1 ms |
2380 KB |
Output is correct |
42 |
Correct |
1 ms |
332 KB |
Output is correct |
43 |
Correct |
69 ms |
165016 KB |
Output is correct |
44 |
Correct |
68 ms |
164228 KB |
Output is correct |
45 |
Correct |
72 ms |
164976 KB |
Output is correct |
46 |
Correct |
68 ms |
165060 KB |
Output is correct |
47 |
Correct |
70 ms |
165032 KB |
Output is correct |
48 |
Correct |
67 ms |
164132 KB |
Output is correct |
49 |
Correct |
68 ms |
164264 KB |
Output is correct |
50 |
Correct |
67 ms |
163396 KB |
Output is correct |
51 |
Correct |
67 ms |
165072 KB |
Output is correct |
52 |
Correct |
70 ms |
165064 KB |
Output is correct |
53 |
Correct |
18 ms |
45028 KB |
Output is correct |
54 |
Correct |
32 ms |
78452 KB |
Output is correct |
55 |
Correct |
48 ms |
113016 KB |
Output is correct |
56 |
Correct |
70 ms |
165044 KB |
Output is correct |
57 |
Correct |
71 ms |
164932 KB |
Output is correct |
58 |
Correct |
73 ms |
77424 KB |
Output is correct |
59 |
Correct |
85 ms |
97840 KB |
Output is correct |
60 |
Correct |
78 ms |
89076 KB |
Output is correct |
61 |
Correct |
75 ms |
86084 KB |
Output is correct |
62 |
Correct |
72 ms |
162628 KB |
Output is correct |
63 |
Correct |
76 ms |
162252 KB |
Output is correct |
64 |
Correct |
89 ms |
152132 KB |
Output is correct |
65 |
Correct |
90 ms |
140500 KB |
Output is correct |
66 |
Correct |
75 ms |
87388 KB |
Output is correct |
67 |
Correct |
77 ms |
84116 KB |
Output is correct |
68 |
Correct |
79 ms |
90004 KB |
Output is correct |
69 |
Correct |
79 ms |
86724 KB |
Output is correct |
70 |
Correct |
81 ms |
93892 KB |
Output is correct |
71 |
Correct |
74 ms |
85136 KB |
Output is correct |
72 |
Correct |
29 ms |
43156 KB |
Output is correct |
73 |
Correct |
4 ms |
3320 KB |
Output is correct |