#include<bits/stdc++.h>
#define god dimasi5eks
#pragma GCC optimize("O3")
#define fi first
#define se second
#define pb push_back
#define pf push_front
#define mod 1000000007
#define dancila 3.14159265359
#define eps 1e-9
using namespace std;
typedef long long ll;
int n;
string s;
vector<int> v[4];
int dp[402][402][402][3];
bool viz[402][402][402][3];
int sp[5][402];
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin >> n;
cin >> s;
for(int i = 0; i < n; ++i)
{
if(s[i] == 'R')
v[1].pb(i), sp[1][i]++;
if(s[i] == 'G')
v[2].pb(i), sp[2][i]++;
if(s[i] == 'Y')
v[3].pb(i), sp[3][i]++;
if(i)
for(int j = 1; j <= 3; ++j)
sp[j][i] += sp[j][i-1];
}
viz[0][0][0][0] = viz[0][0][0][1] = viz[0][0][0][2] = 1;
int mn = (1<<30);
for(int i = 0; i < n; ++i)
{
for(int j = 0; j <= i; ++j)
for(int k = 0; k <= i; ++k)
for(int lst = 0; lst <= 2; ++lst)
{
if(!viz[i][j][k][lst])
continue;
int chR = j;
int chG = k;
int chY = i - j - k;
// next = rosu
if(chR < v[1].size() && lst != 0)
{
int realpos = v[1][chR];
if(chG > 0 && v[2][chG-1] > realpos)
realpos += sp[2][v[2][chG-1]] - sp[2][realpos];
if(chY > 0 && v[3][chY-1] > realpos)
realpos += sp[3][v[3][chY-1]] - sp[3][realpos];
if(!viz[i+1][j+1][k][0] || dp[i+1][j+1][k][0] > dp[i][j][k][lst] + max(0, realpos - i))
{
dp[i+1][j+1][k][0] = dp[i][j][k][lst] + max(0, realpos - i);
viz[i+1][j+1][k][0] = 1;
}
}
if(chG < v[2].size() && lst != 1)
{
int realpos = v[2][chG];
if(chR > 0 && v[1][chR-1] > realpos)
realpos += sp[1][v[1][chR-1]] - sp[1][realpos];
if(chY > 0 && v[3][chY-1] > realpos)
realpos += sp[3][v[3][chY-1]] - sp[3][realpos];
if(!viz[i+1][j][k+1][1] || dp[i+1][j][k+1][1] > dp[i][j][k][lst] + max(0, realpos - i))
{
dp[i+1][j][k+1][1] = dp[i][j][k][lst] + max(0, realpos - i);
viz[i+1][j][k+1][1] = 1;
}
}
if(chY < v[3].size() && lst != 2)
{
int realpos = v[3][chY];
if(chR > 0 && v[1][chR-1] > realpos)
realpos += sp[1][v[1][chR-1]] - sp[1][realpos];
if(chG > 0 && v[2][chG-1] > realpos)
realpos += sp[2][v[2][chG-1]] - sp[2][realpos];
if(!viz[i+1][j][k][2] || dp[i+1][j][k][2] > dp[i][j][k][lst] + max(0, realpos - i))
{
dp[i+1][j][k][2] = dp[i][j][k][lst] + max(0, realpos - i);
viz[i+1][j][k][2] = 1;
}
}
}
}
for(int i = 0; i <= 2; ++i)
if(viz[n][(int)v[1].size()][(int)v[2].size()][i])
mn = min(mn, dp[n][(int)v[1].size()][(int)v[2].size()][i]);
if(mn == (1<<30))
mn = -1;
cout << mn;
return 0;
}
Compilation message
joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:54:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(chR < v[1].size() && lst != 0)
~~~~^~~~~~~~~~~~~
joi2019_ho_t3.cpp:67:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(chG < v[2].size() && lst != 1)
~~~~^~~~~~~~~~~~~
joi2019_ho_t3.cpp:80:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(chY < v[3].size() && lst != 2)
~~~~^~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
632 KB |
Output is correct |
5 |
Correct |
3 ms |
760 KB |
Output is correct |
6 |
Correct |
2 ms |
788 KB |
Output is correct |
7 |
Correct |
3 ms |
760 KB |
Output is correct |
8 |
Correct |
2 ms |
760 KB |
Output is correct |
9 |
Correct |
2 ms |
636 KB |
Output is correct |
10 |
Correct |
2 ms |
504 KB |
Output is correct |
11 |
Correct |
2 ms |
760 KB |
Output is correct |
12 |
Correct |
2 ms |
760 KB |
Output is correct |
13 |
Correct |
3 ms |
632 KB |
Output is correct |
14 |
Correct |
2 ms |
632 KB |
Output is correct |
15 |
Correct |
2 ms |
760 KB |
Output is correct |
16 |
Correct |
2 ms |
504 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
632 KB |
Output is correct |
5 |
Correct |
3 ms |
760 KB |
Output is correct |
6 |
Correct |
2 ms |
788 KB |
Output is correct |
7 |
Correct |
3 ms |
760 KB |
Output is correct |
8 |
Correct |
2 ms |
760 KB |
Output is correct |
9 |
Correct |
2 ms |
636 KB |
Output is correct |
10 |
Correct |
2 ms |
504 KB |
Output is correct |
11 |
Correct |
2 ms |
760 KB |
Output is correct |
12 |
Correct |
2 ms |
760 KB |
Output is correct |
13 |
Correct |
3 ms |
632 KB |
Output is correct |
14 |
Correct |
2 ms |
632 KB |
Output is correct |
15 |
Correct |
2 ms |
760 KB |
Output is correct |
16 |
Correct |
2 ms |
504 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
6 ms |
4216 KB |
Output is correct |
19 |
Correct |
6 ms |
4220 KB |
Output is correct |
20 |
Correct |
6 ms |
4088 KB |
Output is correct |
21 |
Correct |
6 ms |
4344 KB |
Output is correct |
22 |
Correct |
6 ms |
3704 KB |
Output is correct |
23 |
Correct |
6 ms |
4216 KB |
Output is correct |
24 |
Correct |
5 ms |
3448 KB |
Output is correct |
25 |
Correct |
4 ms |
1272 KB |
Output is correct |
26 |
Correct |
4 ms |
1532 KB |
Output is correct |
27 |
Correct |
6 ms |
3704 KB |
Output is correct |
28 |
Correct |
6 ms |
4344 KB |
Output is correct |
29 |
Correct |
6 ms |
4344 KB |
Output is correct |
30 |
Correct |
6 ms |
4208 KB |
Output is correct |
31 |
Correct |
6 ms |
4088 KB |
Output is correct |
32 |
Correct |
6 ms |
4136 KB |
Output is correct |
33 |
Correct |
4 ms |
1784 KB |
Output is correct |
34 |
Correct |
4 ms |
2044 KB |
Output is correct |
35 |
Correct |
6 ms |
3832 KB |
Output is correct |
36 |
Correct |
6 ms |
4088 KB |
Output is correct |
37 |
Correct |
5 ms |
3576 KB |
Output is correct |
38 |
Correct |
6 ms |
3832 KB |
Output is correct |
39 |
Correct |
6 ms |
4344 KB |
Output is correct |
40 |
Correct |
3 ms |
888 KB |
Output is correct |
41 |
Correct |
4 ms |
1400 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
142 ms |
6364 KB |
Output is correct |
3 |
Correct |
141 ms |
6392 KB |
Output is correct |
4 |
Correct |
149 ms |
6560 KB |
Output is correct |
5 |
Correct |
142 ms |
6392 KB |
Output is correct |
6 |
Correct |
142 ms |
6432 KB |
Output is correct |
7 |
Correct |
142 ms |
6392 KB |
Output is correct |
8 |
Correct |
141 ms |
6368 KB |
Output is correct |
9 |
Correct |
140 ms |
6540 KB |
Output is correct |
10 |
Correct |
143 ms |
6684 KB |
Output is correct |
11 |
Correct |
142 ms |
6376 KB |
Output is correct |
12 |
Correct |
27 ms |
3492 KB |
Output is correct |
13 |
Correct |
54 ms |
4600 KB |
Output is correct |
14 |
Correct |
86 ms |
5392 KB |
Output is correct |
15 |
Correct |
142 ms |
6440 KB |
Output is correct |
16 |
Correct |
142 ms |
6412 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
632 KB |
Output is correct |
5 |
Correct |
3 ms |
760 KB |
Output is correct |
6 |
Correct |
2 ms |
788 KB |
Output is correct |
7 |
Correct |
3 ms |
760 KB |
Output is correct |
8 |
Correct |
2 ms |
760 KB |
Output is correct |
9 |
Correct |
2 ms |
636 KB |
Output is correct |
10 |
Correct |
2 ms |
504 KB |
Output is correct |
11 |
Correct |
2 ms |
760 KB |
Output is correct |
12 |
Correct |
2 ms |
760 KB |
Output is correct |
13 |
Correct |
3 ms |
632 KB |
Output is correct |
14 |
Correct |
2 ms |
632 KB |
Output is correct |
15 |
Correct |
2 ms |
760 KB |
Output is correct |
16 |
Correct |
2 ms |
504 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
6 ms |
4216 KB |
Output is correct |
19 |
Correct |
6 ms |
4220 KB |
Output is correct |
20 |
Correct |
6 ms |
4088 KB |
Output is correct |
21 |
Correct |
6 ms |
4344 KB |
Output is correct |
22 |
Correct |
6 ms |
3704 KB |
Output is correct |
23 |
Correct |
6 ms |
4216 KB |
Output is correct |
24 |
Correct |
5 ms |
3448 KB |
Output is correct |
25 |
Correct |
4 ms |
1272 KB |
Output is correct |
26 |
Correct |
4 ms |
1532 KB |
Output is correct |
27 |
Correct |
6 ms |
3704 KB |
Output is correct |
28 |
Correct |
6 ms |
4344 KB |
Output is correct |
29 |
Correct |
6 ms |
4344 KB |
Output is correct |
30 |
Correct |
6 ms |
4208 KB |
Output is correct |
31 |
Correct |
6 ms |
4088 KB |
Output is correct |
32 |
Correct |
6 ms |
4136 KB |
Output is correct |
33 |
Correct |
4 ms |
1784 KB |
Output is correct |
34 |
Correct |
4 ms |
2044 KB |
Output is correct |
35 |
Correct |
6 ms |
3832 KB |
Output is correct |
36 |
Correct |
6 ms |
4088 KB |
Output is correct |
37 |
Correct |
5 ms |
3576 KB |
Output is correct |
38 |
Correct |
6 ms |
3832 KB |
Output is correct |
39 |
Correct |
6 ms |
4344 KB |
Output is correct |
40 |
Correct |
3 ms |
888 KB |
Output is correct |
41 |
Correct |
4 ms |
1400 KB |
Output is correct |
42 |
Correct |
2 ms |
376 KB |
Output is correct |
43 |
Correct |
142 ms |
6364 KB |
Output is correct |
44 |
Correct |
141 ms |
6392 KB |
Output is correct |
45 |
Correct |
149 ms |
6560 KB |
Output is correct |
46 |
Correct |
142 ms |
6392 KB |
Output is correct |
47 |
Correct |
142 ms |
6432 KB |
Output is correct |
48 |
Correct |
142 ms |
6392 KB |
Output is correct |
49 |
Correct |
141 ms |
6368 KB |
Output is correct |
50 |
Correct |
140 ms |
6540 KB |
Output is correct |
51 |
Correct |
143 ms |
6684 KB |
Output is correct |
52 |
Correct |
142 ms |
6376 KB |
Output is correct |
53 |
Correct |
27 ms |
3492 KB |
Output is correct |
54 |
Correct |
54 ms |
4600 KB |
Output is correct |
55 |
Correct |
86 ms |
5392 KB |
Output is correct |
56 |
Correct |
142 ms |
6440 KB |
Output is correct |
57 |
Correct |
142 ms |
6412 KB |
Output is correct |
58 |
Correct |
283 ms |
153240 KB |
Output is correct |
59 |
Correct |
284 ms |
153720 KB |
Output is correct |
60 |
Correct |
283 ms |
153464 KB |
Output is correct |
61 |
Correct |
285 ms |
154876 KB |
Output is correct |
62 |
Correct |
148 ms |
13688 KB |
Output is correct |
63 |
Correct |
153 ms |
22692 KB |
Output is correct |
64 |
Correct |
196 ms |
70008 KB |
Output is correct |
65 |
Correct |
231 ms |
102676 KB |
Output is correct |
66 |
Correct |
339 ms |
153548 KB |
Output is correct |
67 |
Correct |
281 ms |
150904 KB |
Output is correct |
68 |
Correct |
306 ms |
154872 KB |
Output is correct |
69 |
Correct |
302 ms |
155768 KB |
Output is correct |
70 |
Correct |
284 ms |
154904 KB |
Output is correct |
71 |
Correct |
298 ms |
151156 KB |
Output is correct |
72 |
Correct |
157 ms |
23920 KB |
Output is correct |
73 |
Correct |
146 ms |
7704 KB |
Output is correct |