oj.uz

Submission #227550

# Submission time Handle Problem Language Result Execution time Memory
227550 2020-04-27T19:24:47 Z MohamedAhmed04 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
100 / 100
 438 ms 134904 KB 
#include <bits/stdc++.h>
 
using namespace std ;
 
const int inf = 1e7 ;
const int MAX = 400 + 5 ;
 
string s ;
vector< vector< vector< vector<int> > > >dp ;
short cnt[3][MAX] , occ[3][MAX] ;
int n ;
 
int solve(int idx , int cnt1 , int cnt2 , int cnt3 , int prv)
{
	if(idx == n)
		return 0 ;
	int &ret = dp[cnt1][cnt2][cnt3][prv] ;
	if(ret != -1)
		return ret ;
	ret = inf ;
	for(int i = 0 ; i <= 2 ; ++i)
	{
		if(i == prv && idx != 0)
			continue ;
		int to = -1 ;
		if(i == 0)
			to = occ[0][cnt1] ;
		if(i == 1)
			to = occ[1][cnt2] ;
		if(i == 2)
			to = occ[2][cnt3] ;
		if(to == -1)
			continue ;
		int cost = max(0 , cnt[0][to] - cnt1) + max(0 , cnt[1][to] - cnt2) + max(0 , cnt[2][to] - cnt3) ;
		if(i == 0)
			ret = min(ret , solve(idx+1 , cnt1+1 , cnt2 , cnt3 , i) + cost) ;
		if(i == 1)
			ret = min(ret , solve(idx+1 , cnt1 , cnt2+1 , cnt3 , i) + cost) ;
		if(i == 2)
			ret = min(ret , solve(idx+1 , cnt1 , cnt2 , cnt3+1 , i) + cost) ;
	}
	return ret ;
}
 
int main()
{
	memset(occ , -1 , sizeof(occ)) ;
	ios_base::sync_with_stdio(0) ;
	cin.tie(0) ;
	cin>>n ;
	cin>>s ;
	int cnt1 = 0 , cnt2 = 0 , cnt3 = 0 ;
	for(int i = 0 ; i < n ; ++i)
	{
		cnt[0][i] = cnt1 , cnt[1][i] = cnt2 , cnt[2][i] = cnt3 ;
		if(s[i] == 'R')
			occ[0][cnt1++] = i ;
		else if(s[i] == 'G')
			occ[1][cnt2++] = i ;
		else
			occ[2][cnt3++] = i ;
	}
	dp = vector<vector<vector<vector<int>>>>(cnt1+1, vector<vector<vector<int>>>(cnt2+1, vector<vector<int>>(cnt3+1, vector<int>(3,-1)))) ;
	int ans = solve(0 , 0 , 0 , 0 , 0) ;
	if(ans >= inf)
		ans = -1 ;
	//testing to see if the answer will fit in short data type
	assert(ans <= 32767) ;
	return cout<<ans<<"\n" , 0 ;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 6 ms 896 KB Output is correct
19 Correct 6 ms 896 KB Output is correct
20 Correct 6 ms 896 KB Output is correct
21 Correct 5 ms 896 KB Output is correct
22 Correct 5 ms 768 KB Output is correct
23 Correct 5 ms 896 KB Output is correct
24 Correct 5 ms 768 KB Output is correct
25 Correct 4 ms 512 KB Output is correct
26 Correct 5 ms 512 KB Output is correct
27 Correct 5 ms 768 KB Output is correct
28 Correct 5 ms 896 KB Output is correct
29 Correct 5 ms 896 KB Output is correct
30 Correct 6 ms 1024 KB Output is correct
31 Correct 5 ms 896 KB Output is correct
32 Correct 5 ms 896 KB Output is correct
33 Correct 5 ms 512 KB Output is correct
34 Correct 5 ms 640 KB Output is correct
35 Correct 5 ms 768 KB Output is correct
36 Correct 5 ms 768 KB Output is correct
37 Correct 5 ms 768 KB Output is correct
38 Correct 5 ms 896 KB Output is correct
39 Correct 5 ms 896 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 5 ms 640 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 9 ms 3840 KB Output is correct
3 Correct 9 ms 3840 KB Output is correct
4 Correct 9 ms 3840 KB Output is correct
5 Correct 9 ms 3840 KB Output is correct
6 Correct 9 ms 3840 KB Output is correct
7 Correct 9 ms 3840 KB Output is correct
8 Correct 9 ms 3840 KB Output is correct
9 Correct 9 ms 3840 KB Output is correct
10 Correct 9 ms 3840 KB Output is correct
11 Correct 9 ms 3840 KB Output is correct
12 Correct 6 ms 1280 KB Output is correct
13 Correct 7 ms 2048 KB Output is correct
14 Correct 7 ms 2816 KB Output is correct
15 Correct 9 ms 3840 KB Output is correct
16 Correct 9 ms 3840 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 6 ms 896 KB Output is correct
19 Correct 6 ms 896 KB Output is correct
20 Correct 6 ms 896 KB Output is correct
21 Correct 5 ms 896 KB Output is correct
22 Correct 5 ms 768 KB Output is correct
23 Correct 5 ms 896 KB Output is correct
24 Correct 5 ms 768 KB Output is correct
25 Correct 4 ms 512 KB Output is correct
26 Correct 5 ms 512 KB Output is correct
27 Correct 5 ms 768 KB Output is correct
28 Correct 5 ms 896 KB Output is correct
29 Correct 5 ms 896 KB Output is correct
30 Correct 6 ms 1024 KB Output is correct
31 Correct 5 ms 896 KB Output is correct
32 Correct 5 ms 896 KB Output is correct
33 Correct 5 ms 512 KB Output is correct
34 Correct 5 ms 640 KB Output is correct
35 Correct 5 ms 768 KB Output is correct
36 Correct 5 ms 768 KB Output is correct
37 Correct 5 ms 768 KB Output is correct
38 Correct 5 ms 896 KB Output is correct
39 Correct 5 ms 896 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 5 ms 640 KB Output is correct
42 Correct 4 ms 384 KB Output is correct
43 Correct 9 ms 3840 KB Output is correct
44 Correct 9 ms 3840 KB Output is correct
45 Correct 9 ms 3840 KB Output is correct
46 Correct 9 ms 3840 KB Output is correct
47 Correct 9 ms 3840 KB Output is correct
48 Correct 9 ms 3840 KB Output is correct
49 Correct 9 ms 3840 KB Output is correct
50 Correct 9 ms 3840 KB Output is correct
51 Correct 9 ms 3840 KB Output is correct
52 Correct 9 ms 3840 KB Output is correct
53 Correct 6 ms 1280 KB Output is correct
54 Correct 7 ms 2048 KB Output is correct
55 Correct 7 ms 2816 KB Output is correct
56 Correct 9 ms 3840 KB Output is correct
57 Correct 9 ms 3840 KB Output is correct
58 Correct 359 ms 133240 KB Output is correct
59 Correct 344 ms 133496 KB Output is correct
60 Correct 354 ms 132604 KB Output is correct
61 Correct 370 ms 133932 KB Output is correct
62 Correct 20 ms 12416 KB Output is correct
63 Correct 30 ms 20864 KB Output is correct
64 Correct 105 ms 66744 KB Output is correct
65 Correct 173 ms 95736 KB Output is correct
66 Correct 438 ms 131996 KB Output is correct
67 Correct 340 ms 131964 KB Output is correct
68 Correct 357 ms 133752 KB Output is correct
69 Correct 355 ms 134904 KB Output is correct
70 Correct 342 ms 134264 KB Output is correct
71 Correct 343 ms 131064 KB Output is correct
72 Correct 49 ms 34172 KB Output is correct
73 Correct 16 ms 10624 KB Output is correct