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Submission #99019

# Submission time Handle Problem Language Result Execution time Memory
99019 2019-02-28T05:36:46 Z 구재현(#2854, gs14004) Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 330 ms 171896 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 405;
using lint = long long;
using pi = pair<int, int>;

int n;
char str[MAXN];
int dp[222][222][222][4];
vector<int> rep[3];
int sum[3][MAXN];

int cntAfter(char arg, int pos){
	if(arg == 'R') return sum[0][pos + 1];
	if(arg == 'G') return sum[1][pos + 1];
	if(arg == 'Y') return sum[2][pos + 1];
	assert(0);
}

int cost(int cR, int cG, int cY, int mode){
	int pos = -1;
	if(mode == 0) pos = rep[mode][cR-1];
	if(mode == 1) pos = rep[mode][cG-1];
	if(mode == 2) pos = rep[mode][cY-1];
	return
	max(cntAfter('R', pos) - cR, 0) +
	max(cntAfter('G', pos) - cG, 0) +
	max(cntAfter('Y', pos) - cY, 0);
}

int f(int cR, int cG, int cY, int prv){
	if(cR + cG + cY == 0) return 0;
	if(~dp[cR][cG][cY][prv]) return dp[cR][cG][cY][prv];
	int ret = 1e9;
	if(cR > 0 && prv != 0){
		ret = min(ret, f(cR - 1, cG, cY, 0) + cost(cR, cG, cY, 0));
	}
	if(cG > 0 && prv != 1){
		ret = min(ret, f(cR, cG - 1, cY, 1) + cost(cR, cG, cY, 1));
	}
	if(cY > 0 && prv != 2){
		ret = min(ret, f(cR, cG, cY - 1, 2) + cost(cR, cG, cY, 2));
	}
	return dp[cR][cG][cY][prv] = ret;
}

int main(){
	cin >> n >> str;
	memset(dp, -1, sizeof(dp));
	int cntr = count(str, str + n, 'R');
	int cntg = count(str, str + n, 'G');
	int cnty = count(str, str + n, 'Y');
	if(max({cntr, cntg, cnty}) > 202){
		puts("-1");
		return 0;
	}
	for(int i=n-1; i>=0; i--){
		if(str[i] == 'R'){
			rep[0].push_back(i);
			sum[0][i]++;
		}
		if(str[i] == 'G'){
			rep[1].push_back(i);
			sum[1][i]++;
		}
		if(str[i] == 'Y'){
			rep[2].push_back(i);
			sum[2][i]++;
		}
		for(int j=0; j<3; j++) sum[j][i] += sum[j][i+1];
	}
	int ans = f(cntr, cntg, cnty, 3);
	if(ans > 1e8) ans = -1;
	cout << ans << endl;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 140 ms 171732 KB Output is correct
2 Correct 143 ms 171536 KB Output is correct
3 Correct 138 ms 171640 KB Output is correct
4 Correct 160 ms 171640 KB Output is correct
5 Correct 142 ms 171704 KB Output is correct
6 Correct 139 ms 171644 KB Output is correct
7 Correct 139 ms 171632 KB Output is correct
8 Correct 143 ms 171640 KB Output is correct
9 Correct 144 ms 171648 KB Output is correct
10 Correct 150 ms 171612 KB Output is correct
11 Correct 140 ms 171652 KB Output is correct
12 Correct 162 ms 171640 KB Output is correct
13 Correct 147 ms 171612 KB Output is correct
14 Correct 151 ms 171640 KB Output is correct
15 Correct 168 ms 171636 KB Output is correct
16 Correct 154 ms 171700 KB Output is correct
17 Correct 141 ms 171640 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 140 ms 171732 KB Output is correct
2 Correct 143 ms 171536 KB Output is correct
3 Correct 138 ms 171640 KB Output is correct
4 Correct 160 ms 171640 KB Output is correct
5 Correct 142 ms 171704 KB Output is correct
6 Correct 139 ms 171644 KB Output is correct
7 Correct 139 ms 171632 KB Output is correct
8 Correct 143 ms 171640 KB Output is correct
9 Correct 144 ms 171648 KB Output is correct
10 Correct 150 ms 171612 KB Output is correct
11 Correct 140 ms 171652 KB Output is correct
12 Correct 162 ms 171640 KB Output is correct
13 Correct 147 ms 171612 KB Output is correct
14 Correct 151 ms 171640 KB Output is correct
15 Correct 168 ms 171636 KB Output is correct
16 Correct 154 ms 171700 KB Output is correct
17 Correct 141 ms 171640 KB Output is correct
18 Correct 154 ms 171600 KB Output is correct
19 Correct 170 ms 171640 KB Output is correct
20 Correct 138 ms 171592 KB Output is correct
21 Correct 146 ms 171616 KB Output is correct
22 Correct 153 ms 171752 KB Output is correct
23 Correct 147 ms 171572 KB Output is correct
24 Correct 144 ms 171612 KB Output is correct
25 Correct 145 ms 171640 KB Output is correct
26 Correct 137 ms 171640 KB Output is correct
27 Correct 143 ms 171772 KB Output is correct
28 Correct 141 ms 171648 KB Output is correct
29 Correct 152 ms 171632 KB Output is correct
30 Correct 135 ms 171556 KB Output is correct
31 Correct 139 ms 171564 KB Output is correct
32 Correct 138 ms 171640 KB Output is correct
33 Correct 142 ms 171612 KB Output is correct
34 Correct 142 ms 171640 KB Output is correct
35 Correct 137 ms 171680 KB Output is correct
36 Correct 141 ms 171640 KB Output is correct
37 Correct 143 ms 171620 KB Output is correct
38 Correct 150 ms 171608 KB Output is correct
39 Correct 137 ms 171640 KB Output is correct
40 Correct 137 ms 171640 KB Output is correct
41 Correct 135 ms 171644 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 148 ms 171652 KB Output is correct
2 Correct 137 ms 171604 KB Output is correct
3 Correct 158 ms 171628 KB Output is correct
4 Correct 174 ms 171696 KB Output is correct
5 Correct 141 ms 171640 KB Output is correct
6 Correct 148 ms 171640 KB Output is correct
7 Correct 140 ms 171696 KB Output is correct
8 Correct 149 ms 171592 KB Output is correct
9 Correct 150 ms 171576 KB Output is correct
10 Correct 145 ms 171624 KB Output is correct
11 Correct 151 ms 171896 KB Output is correct
12 Correct 139 ms 171592 KB Output is correct
13 Correct 136 ms 171640 KB Output is correct
14 Correct 138 ms 171708 KB Output is correct
15 Correct 162 ms 171640 KB Output is correct
16 Correct 172 ms 171612 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 140 ms 171732 KB Output is correct
2 Correct 143 ms 171536 KB Output is correct
3 Correct 138 ms 171640 KB Output is correct
4 Correct 160 ms 171640 KB Output is correct
5 Correct 142 ms 171704 KB Output is correct
6 Correct 139 ms 171644 KB Output is correct
7 Correct 139 ms 171632 KB Output is correct
8 Correct 143 ms 171640 KB Output is correct
9 Correct 144 ms 171648 KB Output is correct
10 Correct 150 ms 171612 KB Output is correct
11 Correct 140 ms 171652 KB Output is correct
12 Correct 162 ms 171640 KB Output is correct
13 Correct 147 ms 171612 KB Output is correct
14 Correct 151 ms 171640 KB Output is correct
15 Correct 168 ms 171636 KB Output is correct
16 Correct 154 ms 171700 KB Output is correct
17 Correct 141 ms 171640 KB Output is correct
18 Correct 154 ms 171600 KB Output is correct
19 Correct 170 ms 171640 KB Output is correct
20 Correct 138 ms 171592 KB Output is correct
21 Correct 146 ms 171616 KB Output is correct
22 Correct 153 ms 171752 KB Output is correct
23 Correct 147 ms 171572 KB Output is correct
24 Correct 144 ms 171612 KB Output is correct
25 Correct 145 ms 171640 KB Output is correct
26 Correct 137 ms 171640 KB Output is correct
27 Correct 143 ms 171772 KB Output is correct
28 Correct 141 ms 171648 KB Output is correct
29 Correct 152 ms 171632 KB Output is correct
30 Correct 135 ms 171556 KB Output is correct
31 Correct 139 ms 171564 KB Output is correct
32 Correct 138 ms 171640 KB Output is correct
33 Correct 142 ms 171612 KB Output is correct
34 Correct 142 ms 171640 KB Output is correct
35 Correct 137 ms 171680 KB Output is correct
36 Correct 141 ms 171640 KB Output is correct
37 Correct 143 ms 171620 KB Output is correct
38 Correct 150 ms 171608 KB Output is correct
39 Correct 137 ms 171640 KB Output is correct
40 Correct 137 ms 171640 KB Output is correct
41 Correct 135 ms 171644 KB Output is correct
42 Correct 148 ms 171652 KB Output is correct
43 Correct 137 ms 171604 KB Output is correct
44 Correct 158 ms 171628 KB Output is correct
45 Correct 174 ms 171696 KB Output is correct
46 Correct 141 ms 171640 KB Output is correct
47 Correct 148 ms 171640 KB Output is correct
48 Correct 140 ms 171696 KB Output is correct
49 Correct 149 ms 171592 KB Output is correct
50 Correct 150 ms 171576 KB Output is correct
51 Correct 145 ms 171624 KB Output is correct
52 Correct 151 ms 171896 KB Output is correct
53 Correct 139 ms 171592 KB Output is correct
54 Correct 136 ms 171640 KB Output is correct
55 Correct 138 ms 171708 KB Output is correct
56 Correct 162 ms 171640 KB Output is correct
57 Correct 172 ms 171612 KB Output is correct
58 Correct 272 ms 171748 KB Output is correct
59 Correct 273 ms 171640 KB Output is correct
60 Correct 328 ms 171640 KB Output is correct
61 Correct 330 ms 171768 KB Output is correct
62 Correct 153 ms 171640 KB Output is correct
63 Correct 149 ms 171552 KB Output is correct
64 Correct 180 ms 171672 KB Output is correct
65 Correct 183 ms 171788 KB Output is correct
66 Correct 309 ms 171768 KB Output is correct
67 Correct 294 ms 171768 KB Output is correct
68 Correct 319 ms 171768 KB Output is correct
69 Correct 291 ms 171756 KB Output is correct
70 Correct 276 ms 171768 KB Output is correct
71 Correct 288 ms 171596 KB Output is correct
72 Correct 144 ms 171640 KB Output is correct
73 Correct 145 ms 171640 KB Output is correct