#include<bits/stdc++.h>
#define F first
#define S second
#define ll long long
using namespace std;
const int N = 5e5+5;
ll n, m, k, x, y, a, b, t, q, ans, sum;
vector< ll > g_ind, r_ind, y_ind;
ll A[N],B[N];
char C[N];
int G,R,Y;
int g_num[N], r_num[N], y_num[N];
int ind;
int dp[405][405][405][4];
int calc(int x,int y){
if(x==-1 && y==-1)return -1;
if(x==-1)return y;
if(y==-1)return x;
return min(x,y);
}
int main()
{
ios::sync_with_stdio(0);
g_ind.push_back(0);
r_ind.push_back(0);
y_ind.push_back(0);
cin >> n;
for(int i=1;i<=n;i++){
cin >> C[i];
g_num[i] = g_num[i-1];
r_num[i] = r_num[i-1];
y_num[i] = y_num[i-1];
if( C[i] == 'G' ){
g_ind.push_back(i);
G++;
g_num[i]++;
}
if( C[i] == 'R' ){
r_ind.push_back(i);
R++;
r_num[i]++;
}
if( C[i] == 'Y' ){
y_ind.push_back(i);
Y++;
y_num[i]++;
}
}
for(int g = 0; g <= G; g++ )
for(int r = 0; r <= R; r++ )
for(int y = 0; y <= Y; y++ )
for(int i=1;i<=3;i++)
dp[g][r][y][i]=-1;
for(int i=1;i<=3;i++)
dp[0][0][0][i]=0;
for(int g = 0; g <= G; g++ )
for(int r = 0; r <= R; r++ )
for(int y = 0; y <= Y; y++ ){
int sul = g+r+y;
sul++;
sul /= 2;
ind = g_ind[g];
if( g>0 && g<=sul ){
int z = calc( dp[g - 1][r][y][2] , dp[g - 1][r][y][3] );
if(z!=-1)
dp[g][r][y][1] = z + max(0,(r_num[ind] - r_num[r_ind[r]])) + max(0,(y_num[ind] - y_num[y_ind[y]]));
}
ind = r_ind[r];
if( r>0 && r<=sul ){
int z = calc( dp[g][r - 1][y][1] , dp[g][r - 1][y][3] );
if(z!=-1)
dp[g][r][y][2] = z + max(0,(g_num[ind] - g_num[g_ind[g]])) + max(0,(y_num[ind] - y_num[y_ind[y]]));
}
ind = y_ind[y];
if( y>0 && y<=sul ){
int z = calc( dp[g][r][y - 1][1] , dp[g][r][y - 1][2] );
if(z!=-1)
dp[g][r][y][3] = z + max(0,(g_num[ind] - g_num[g_ind[g]])) + max(0,(r_num[ind] - r_num[r_ind[r]]));
}
// cout << dp[g][r][y][1] <<" "<< dp[g][r][y][2] <<" "<< dp[g][r][y][3] << endl;
// cout<<g<<" "<<r<<" "<<y<<endl;
// cout<<endl;
}
cout << calc( dp[G][R][Y][1] , calc( dp[G][R][Y][2] , dp[G][R][Y][3] ) ) << endl;
}
# |
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 |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
3 ms |
512 KB |
Output is correct |
5 |
Correct |
3 ms |
512 KB |
Output is correct |
6 |
Correct |
2 ms |
512 KB |
Output is correct |
7 |
Correct |
3 ms |
512 KB |
Output is correct |
8 |
Correct |
2 ms |
512 KB |
Output is correct |
9 |
Correct |
3 ms |
640 KB |
Output is correct |
10 |
Correct |
2 ms |
768 KB |
Output is correct |
11 |
Correct |
2 ms |
512 KB |
Output is correct |
12 |
Correct |
2 ms |
512 KB |
Output is correct |
13 |
Correct |
2 ms |
512 KB |
Output is correct |
14 |
Correct |
3 ms |
512 KB |
Output is correct |
15 |
Correct |
3 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 |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
3 ms |
512 KB |
Output is correct |
5 |
Correct |
3 ms |
512 KB |
Output is correct |
6 |
Correct |
2 ms |
512 KB |
Output is correct |
7 |
Correct |
3 ms |
512 KB |
Output is correct |
8 |
Correct |
2 ms |
512 KB |
Output is correct |
9 |
Correct |
3 ms |
640 KB |
Output is correct |
10 |
Correct |
2 ms |
768 KB |
Output is correct |
11 |
Correct |
2 ms |
512 KB |
Output is correct |
12 |
Correct |
2 ms |
512 KB |
Output is correct |
13 |
Correct |
2 ms |
512 KB |
Output is correct |
14 |
Correct |
3 ms |
512 KB |
Output is correct |
15 |
Correct |
3 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 |
3 ms |
2048 KB |
Output is correct |
20 |
Correct |
4 ms |
2304 KB |
Output is correct |
21 |
Correct |
5 ms |
2596 KB |
Output is correct |
22 |
Correct |
3 ms |
1792 KB |
Output is correct |
23 |
Correct |
3 ms |
2304 KB |
Output is correct |
24 |
Correct |
3 ms |
1792 KB |
Output is correct |
25 |
Correct |
4 ms |
3968 KB |
Output is correct |
26 |
Correct |
6 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 |
2176 KB |
Output is correct |
32 |
Correct |
3 ms |
2432 KB |
Output is correct |
33 |
Correct |
4 ms |
4096 KB |
Output is correct |
34 |
Correct |
4 ms |
3712 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 |
1920 KB |
Output is correct |
38 |
Correct |
3 ms |
2304 KB |
Output is correct |
39 |
Correct |
4 ms |
2432 KB |
Output is correct |
40 |
Correct |
2 ms |
512 KB |
Output is correct |
41 |
Correct |
4 ms |
2432 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
428 KB |
Output is correct |
2 |
Correct |
109 ms |
162936 KB |
Output is correct |
3 |
Correct |
110 ms |
162164 KB |
Output is correct |
4 |
Correct |
124 ms |
163096 KB |
Output is correct |
5 |
Correct |
113 ms |
162976 KB |
Output is correct |
6 |
Correct |
138 ms |
162936 KB |
Output is correct |
7 |
Correct |
120 ms |
162204 KB |
Output is correct |
8 |
Correct |
115 ms |
162100 KB |
Output is correct |
9 |
Correct |
112 ms |
161412 KB |
Output is correct |
10 |
Correct |
115 ms |
163004 KB |
Output is correct |
11 |
Correct |
111 ms |
163196 KB |
Output is correct |
12 |
Correct |
34 ms |
44132 KB |
Output is correct |
13 |
Correct |
56 ms |
77176 KB |
Output is correct |
14 |
Correct |
74 ms |
111480 KB |
Output is correct |
15 |
Correct |
110 ms |
163064 KB |
Output is correct |
16 |
Correct |
109 ms |
162936 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 |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
3 ms |
512 KB |
Output is correct |
5 |
Correct |
3 ms |
512 KB |
Output is correct |
6 |
Correct |
2 ms |
512 KB |
Output is correct |
7 |
Correct |
3 ms |
512 KB |
Output is correct |
8 |
Correct |
2 ms |
512 KB |
Output is correct |
9 |
Correct |
3 ms |
640 KB |
Output is correct |
10 |
Correct |
2 ms |
768 KB |
Output is correct |
11 |
Correct |
2 ms |
512 KB |
Output is correct |
12 |
Correct |
2 ms |
512 KB |
Output is correct |
13 |
Correct |
2 ms |
512 KB |
Output is correct |
14 |
Correct |
3 ms |
512 KB |
Output is correct |
15 |
Correct |
3 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 |
3 ms |
2048 KB |
Output is correct |
20 |
Correct |
4 ms |
2304 KB |
Output is correct |
21 |
Correct |
5 ms |
2596 KB |
Output is correct |
22 |
Correct |
3 ms |
1792 KB |
Output is correct |
23 |
Correct |
3 ms |
2304 KB |
Output is correct |
24 |
Correct |
3 ms |
1792 KB |
Output is correct |
25 |
Correct |
4 ms |
3968 KB |
Output is correct |
26 |
Correct |
6 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 |
2176 KB |
Output is correct |
32 |
Correct |
3 ms |
2432 KB |
Output is correct |
33 |
Correct |
4 ms |
4096 KB |
Output is correct |
34 |
Correct |
4 ms |
3712 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 |
1920 KB |
Output is correct |
38 |
Correct |
3 ms |
2304 KB |
Output is correct |
39 |
Correct |
4 ms |
2432 KB |
Output is correct |
40 |
Correct |
2 ms |
512 KB |
Output is correct |
41 |
Correct |
4 ms |
2432 KB |
Output is correct |
42 |
Correct |
2 ms |
428 KB |
Output is correct |
43 |
Correct |
109 ms |
162936 KB |
Output is correct |
44 |
Correct |
110 ms |
162164 KB |
Output is correct |
45 |
Correct |
124 ms |
163096 KB |
Output is correct |
46 |
Correct |
113 ms |
162976 KB |
Output is correct |
47 |
Correct |
138 ms |
162936 KB |
Output is correct |
48 |
Correct |
120 ms |
162204 KB |
Output is correct |
49 |
Correct |
115 ms |
162100 KB |
Output is correct |
50 |
Correct |
112 ms |
161412 KB |
Output is correct |
51 |
Correct |
115 ms |
163004 KB |
Output is correct |
52 |
Correct |
111 ms |
163196 KB |
Output is correct |
53 |
Correct |
34 ms |
44132 KB |
Output is correct |
54 |
Correct |
56 ms |
77176 KB |
Output is correct |
55 |
Correct |
74 ms |
111480 KB |
Output is correct |
56 |
Correct |
110 ms |
163064 KB |
Output is correct |
57 |
Correct |
109 ms |
162936 KB |
Output is correct |
58 |
Correct |
94 ms |
101444 KB |
Output is correct |
59 |
Correct |
122 ms |
119032 KB |
Output is correct |
60 |
Correct |
104 ms |
111176 KB |
Output is correct |
61 |
Correct |
97 ms |
109044 KB |
Output is correct |
62 |
Correct |
116 ms |
161100 KB |
Output is correct |
63 |
Correct |
117 ms |
161464 KB |
Output is correct |
64 |
Correct |
121 ms |
154616 KB |
Output is correct |
65 |
Correct |
124 ms |
145272 KB |
Output is correct |
66 |
Correct |
112 ms |
109480 KB |
Output is correct |
67 |
Correct |
106 ms |
107004 KB |
Output is correct |
68 |
Correct |
97 ms |
112248 KB |
Output is correct |
69 |
Correct |
126 ms |
109816 KB |
Output is correct |
70 |
Correct |
100 ms |
115804 KB |
Output is correct |
71 |
Correct |
94 ms |
107384 KB |
Output is correct |
72 |
Correct |
42 ms |
43896 KB |
Output is correct |
73 |
Correct |
5 ms |
4352 KB |
Output is correct |