oj.uz

Submission #99089

# Submission time Handle Problem Language Result Execution time Memory
99089 2019-02-28T14:12:20 Z gs14004 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 386 ms 171772 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 162 ms 171640 KB Output is correct
2 Correct 143 ms 171612 KB Output is correct
3 Correct 147 ms 171568 KB Output is correct
4 Correct 150 ms 171640 KB Output is correct
5 Correct 144 ms 171640 KB Output is correct
6 Correct 160 ms 171640 KB Output is correct
7 Correct 146 ms 171636 KB Output is correct
8 Correct 136 ms 171540 KB Output is correct
9 Correct 137 ms 171560 KB Output is correct
10 Correct 146 ms 171668 KB Output is correct
11 Correct 156 ms 171768 KB Output is correct
12 Correct 139 ms 171740 KB Output is correct
13 Correct 155 ms 171772 KB Output is correct
14 Correct 158 ms 171652 KB Output is correct
15 Correct 142 ms 171612 KB Output is correct
16 Correct 143 ms 171640 KB Output is correct
17 Correct 144 ms 171628 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 162 ms 171640 KB Output is correct
2 Correct 143 ms 171612 KB Output is correct
3 Correct 147 ms 171568 KB Output is correct
4 Correct 150 ms 171640 KB Output is correct
5 Correct 144 ms 171640 KB Output is correct
6 Correct 160 ms 171640 KB Output is correct
7 Correct 146 ms 171636 KB Output is correct
8 Correct 136 ms 171540 KB Output is correct
9 Correct 137 ms 171560 KB Output is correct
10 Correct 146 ms 171668 KB Output is correct
11 Correct 156 ms 171768 KB Output is correct
12 Correct 139 ms 171740 KB Output is correct
13 Correct 155 ms 171772 KB Output is correct
14 Correct 158 ms 171652 KB Output is correct
15 Correct 142 ms 171612 KB Output is correct
16 Correct 143 ms 171640 KB Output is correct
17 Correct 144 ms 171628 KB Output is correct
18 Correct 138 ms 171556 KB Output is correct
19 Correct 136 ms 171684 KB Output is correct
20 Correct 135 ms 171640 KB Output is correct
21 Correct 144 ms 171584 KB Output is correct
22 Correct 142 ms 171640 KB Output is correct
23 Correct 169 ms 171640 KB Output is correct
24 Correct 145 ms 171640 KB Output is correct
25 Correct 150 ms 171604 KB Output is correct
26 Correct 135 ms 171640 KB Output is correct
27 Correct 141 ms 171768 KB Output is correct
28 Correct 149 ms 171708 KB Output is correct
29 Correct 164 ms 171656 KB Output is correct
30 Correct 139 ms 171640 KB Output is correct
31 Correct 147 ms 171760 KB Output is correct
32 Correct 138 ms 171640 KB Output is correct
33 Correct 139 ms 171640 KB Output is correct
34 Correct 136 ms 171528 KB Output is correct
35 Correct 150 ms 171640 KB Output is correct
36 Correct 136 ms 171752 KB Output is correct
37 Correct 140 ms 171744 KB Output is correct
38 Correct 142 ms 171620 KB Output is correct
39 Correct 139 ms 171724 KB Output is correct
40 Correct 159 ms 171744 KB Output is correct
41 Correct 136 ms 171644 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 145 ms 171688 KB Output is correct
2 Correct 145 ms 171632 KB Output is correct
3 Correct 144 ms 171644 KB Output is correct
4 Correct 162 ms 171552 KB Output is correct
5 Correct 138 ms 171604 KB Output is correct
6 Correct 203 ms 171640 KB Output is correct
7 Correct 148 ms 171764 KB Output is correct
8 Correct 147 ms 171720 KB Output is correct
9 Correct 141 ms 171640 KB Output is correct
10 Correct 143 ms 171640 KB Output is correct
11 Correct 154 ms 171640 KB Output is correct
12 Correct 148 ms 171648 KB Output is correct
13 Correct 137 ms 171612 KB Output is correct
14 Correct 142 ms 171640 KB Output is correct
15 Correct 144 ms 171556 KB Output is correct
16 Correct 145 ms 171520 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 162 ms 171640 KB Output is correct
2 Correct 143 ms 171612 KB Output is correct
3 Correct 147 ms 171568 KB Output is correct
4 Correct 150 ms 171640 KB Output is correct
5 Correct 144 ms 171640 KB Output is correct
6 Correct 160 ms 171640 KB Output is correct
7 Correct 146 ms 171636 KB Output is correct
8 Correct 136 ms 171540 KB Output is correct
9 Correct 137 ms 171560 KB Output is correct
10 Correct 146 ms 171668 KB Output is correct
11 Correct 156 ms 171768 KB Output is correct
12 Correct 139 ms 171740 KB Output is correct
13 Correct 155 ms 171772 KB Output is correct
14 Correct 158 ms 171652 KB Output is correct
15 Correct 142 ms 171612 KB Output is correct
16 Correct 143 ms 171640 KB Output is correct
17 Correct 144 ms 171628 KB Output is correct
18 Correct 138 ms 171556 KB Output is correct
19 Correct 136 ms 171684 KB Output is correct
20 Correct 135 ms 171640 KB Output is correct
21 Correct 144 ms 171584 KB Output is correct
22 Correct 142 ms 171640 KB Output is correct
23 Correct 169 ms 171640 KB Output is correct
24 Correct 145 ms 171640 KB Output is correct
25 Correct 150 ms 171604 KB Output is correct
26 Correct 135 ms 171640 KB Output is correct
27 Correct 141 ms 171768 KB Output is correct
28 Correct 149 ms 171708 KB Output is correct
29 Correct 164 ms 171656 KB Output is correct
30 Correct 139 ms 171640 KB Output is correct
31 Correct 147 ms 171760 KB Output is correct
32 Correct 138 ms 171640 KB Output is correct
33 Correct 139 ms 171640 KB Output is correct
34 Correct 136 ms 171528 KB Output is correct
35 Correct 150 ms 171640 KB Output is correct
36 Correct 136 ms 171752 KB Output is correct
37 Correct 140 ms 171744 KB Output is correct
38 Correct 142 ms 171620 KB Output is correct
39 Correct 139 ms 171724 KB Output is correct
40 Correct 159 ms 171744 KB Output is correct
41 Correct 136 ms 171644 KB Output is correct
42 Correct 145 ms 171688 KB Output is correct
43 Correct 145 ms 171632 KB Output is correct
44 Correct 144 ms 171644 KB Output is correct
45 Correct 162 ms 171552 KB Output is correct
46 Correct 138 ms 171604 KB Output is correct
47 Correct 203 ms 171640 KB Output is correct
48 Correct 148 ms 171764 KB Output is correct
49 Correct 147 ms 171720 KB Output is correct
50 Correct 141 ms 171640 KB Output is correct
51 Correct 143 ms 171640 KB Output is correct
52 Correct 154 ms 171640 KB Output is correct
53 Correct 148 ms 171648 KB Output is correct
54 Correct 137 ms 171612 KB Output is correct
55 Correct 142 ms 171640 KB Output is correct
56 Correct 144 ms 171556 KB Output is correct
57 Correct 145 ms 171520 KB Output is correct
58 Correct 386 ms 171740 KB Output is correct
59 Correct 324 ms 171600 KB Output is correct
60 Correct 296 ms 171656 KB Output is correct
61 Correct 308 ms 171664 KB Output is correct
62 Correct 139 ms 171584 KB Output is correct
63 Correct 147 ms 171612 KB Output is correct
64 Correct 185 ms 171552 KB Output is correct
65 Correct 176 ms 171648 KB Output is correct
66 Correct 327 ms 171672 KB Output is correct
67 Correct 271 ms 171608 KB Output is correct
68 Correct 300 ms 171628 KB Output is correct
69 Correct 303 ms 171596 KB Output is correct
70 Correct 272 ms 171680 KB Output is correct
71 Correct 297 ms 171668 KB Output is correct
72 Correct 153 ms 171632 KB Output is correct
73 Correct 151 ms 171552 KB Output is correct