oj.uz

Submission #107682

# Submission time Handle Problem Language Result Execution time Memory
107682 2019-04-25T12:35:52 Z Saboon Lamps (JOI19_lamps) C++14
47 / 100
 1000 ms 256972 KB 
#include <bits/stdc++.h>
 
using namespace std;
typedef long long ll;
 
const int maxn = 1e6 + 10;
 
int dp[maxn][65];
 
int mab(int fi, int se){
	return fi + se * 4;
}
 
int transform(int x, int query){
	if (query == 0)
		return x;
	else if (query == 1)
		return 0;
	else if (query == 2)
		return 1;
	else
		return 1 ^ x;
}
 
int transfer(int q, int fi, int se){
	q = transform(q, fi);
	q = transform(q, se);
	return q;
}
 
bool C(int x){
	return x > 0;
}
 
int lcs[5][5];
int pd[257];
 
int cost(int fi, int se, int all){
	int Fi = (all / 1) % 4;
	int Se = (all / 4) % 4;
	if (pd[fi + 4 * se + 16 * Fi + 64 * Se] != -1)
		return pd[fi + 4 * se + 16 * Fi + 64 * Se];
	vector<int> a = {fi, se};
	vector<int> b = {Fi, Se};
	int cnt = C(Fi) + C(Se);
	for (int i = 1; i <= 2; i++){
		for (int j = 1; j <= 2; j++){
			lcs[i][j] = max(lcs[i - 1][j], lcs[i][j - 1]);
			if (a[i - 1] == 0 or b[i - 1] == 0)
				continue;
			lcs[i][j] = max(lcs[i][j], (lcs[i - 1][j - 1] + 1) * (a[i - 1] == b[j - 1]));
		}
	}
	return pd[fi + 4 * se + 16 * Fi + 64 * Se] = cnt - lcs[2][2];
}
 
vector<int> go[2][2];
 
int main(){
	ios_base::sync_with_stdio(false);
	memset(pd, -1, sizeof pd);
	int n;
	string s, t;
	cin >> n >> s >> t;
	memset(dp, 63, sizeof dp);
	dp[0][0] = 0;
	int answer = n;
	for (int i = 0; i <= 3; i++){
		for (int j = 0; j <= 3; j++){
			int nex = transfer(0, i, j);
			go[0][nex].push_back(mab(i, j));
 
			nex = transfer(1, i, j);
			go[1][nex].push_back(mab(i, j));
		}
	}
 
	for (int i = 1; i <= n; i++){
		int me = (int)(s[i - 1] - '0');
		int nex = (int)(t[i - 1] - '0');
		for (auto it : go[me][nex]){
			for (int x = 0; x <= 3; x++){
				for (int y = 0; y <= 3; y++){
					dp[i][it] = min(dp[i][it], dp[i - 1][mab(x, y)] + cost(x, y, it));
				}
			}
			if (i == n)
				answer = min(answer, dp[i][it]);
		}
	}
	cout << answer << endl;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 199 ms 254712 KB Output is correct
2 Correct 194 ms 254712 KB Output is correct
3 Correct 214 ms 254768 KB Output is correct
4 Correct 204 ms 254712 KB Output is correct
5 Correct 194 ms 254712 KB Output is correct
6 Correct 213 ms 254756 KB Output is correct
7 Correct 211 ms 254712 KB Output is correct
8 Correct 198 ms 254896 KB Output is correct
9 Correct 217 ms 254752 KB Output is correct
10 Correct 221 ms 254684 KB Output is correct
11 Correct 221 ms 254792 KB Output is correct
12 Correct 215 ms 254712 KB Output is correct
13 Correct 196 ms 254712 KB Output is correct
14 Correct 199 ms 254816 KB Output is correct
15 Correct 239 ms 254716 KB Output is correct
16 Correct 208 ms 254760 KB Output is correct
17 Correct 202 ms 254840 KB Output is correct
18 Correct 206 ms 254700 KB Output is correct
19 Correct 198 ms 254712 KB Output is correct
20 Correct 209 ms 254712 KB Output is correct
21 Correct 211 ms 254840 KB Output is correct
22 Correct 220 ms 254712 KB Output is correct
23 Correct 223 ms 254796 KB Output is correct
24 Correct 215 ms 254712 KB Output is correct
25 Correct 221 ms 254840 KB Output is correct
26 Correct 236 ms 254712 KB Output is correct
27 Correct 213 ms 254712 KB Output is correct
28 Correct 237 ms 254712 KB Output is correct
29 Correct 225 ms 254712 KB Output is correct
30 Correct 227 ms 254684 KB Output is correct
31 Correct 214 ms 254860 KB Output is correct
32 Correct 219 ms 254732 KB Output is correct
33 Correct 209 ms 254840 KB Output is correct
34 Correct 194 ms 254776 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 199 ms 254712 KB Output is correct
2 Correct 194 ms 254712 KB Output is correct
3 Correct 214 ms 254768 KB Output is correct
4 Correct 204 ms 254712 KB Output is correct
5 Correct 194 ms 254712 KB Output is correct
6 Correct 213 ms 254756 KB Output is correct
7 Correct 211 ms 254712 KB Output is correct
8 Correct 198 ms 254896 KB Output is correct
9 Correct 217 ms 254752 KB Output is correct
10 Correct 221 ms 254684 KB Output is correct
11 Correct 221 ms 254792 KB Output is correct
12 Correct 215 ms 254712 KB Output is correct
13 Correct 196 ms 254712 KB Output is correct
14 Correct 199 ms 254816 KB Output is correct
15 Correct 239 ms 254716 KB Output is correct
16 Correct 208 ms 254760 KB Output is correct
17 Correct 202 ms 254840 KB Output is correct
18 Correct 206 ms 254700 KB Output is correct
19 Correct 198 ms 254712 KB Output is correct
20 Correct 209 ms 254712 KB Output is correct
21 Correct 211 ms 254840 KB Output is correct
22 Correct 220 ms 254712 KB Output is correct
23 Correct 223 ms 254796 KB Output is correct
24 Correct 215 ms 254712 KB Output is correct
25 Correct 221 ms 254840 KB Output is correct
26 Correct 236 ms 254712 KB Output is correct
27 Correct 213 ms 254712 KB Output is correct
28 Correct 237 ms 254712 KB Output is correct
29 Correct 225 ms 254712 KB Output is correct
30 Correct 227 ms 254684 KB Output is correct
31 Correct 214 ms 254860 KB Output is correct
32 Correct 219 ms 254732 KB Output is correct
33 Correct 209 ms 254840 KB Output is correct
34 Correct 194 ms 254776 KB Output is correct
35 Correct 217 ms 254696 KB Output is correct
36 Correct 214 ms 254840 KB Output is correct
37 Correct 205 ms 254796 KB Output is correct
38 Correct 241 ms 254840 KB Output is correct
39 Correct 201 ms 254712 KB Output is correct
40 Correct 234 ms 254872 KB Output is correct
41 Correct 204 ms 254808 KB Output is correct
42 Correct 218 ms 254856 KB Output is correct
43 Correct 211 ms 254840 KB Output is correct
44 Correct 195 ms 254800 KB Output is correct
45 Correct 221 ms 254840 KB Output is correct
46 Correct 215 ms 254832 KB Output is correct
47 Correct 218 ms 254712 KB Output is correct
48 Correct 211 ms 254840 KB Output is correct
49 Correct 203 ms 254880 KB Output is correct
50 Correct 214 ms 254840 KB Output is correct
51 Correct 208 ms 254684 KB Output is correct
52 Correct 219 ms 254948 KB Output is correct
53 Correct 210 ms 254840 KB Output is correct
54 Correct 224 ms 254832 KB Output is correct
55 Correct 265 ms 254712 KB Output is correct
56 Correct 209 ms 254712 KB Output is correct
57 Correct 197 ms 254932 KB Output is correct
58 Correct 201 ms 254692 KB Output is correct

Subtask #3
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 226 ms 254724 KB Output is correct
2 Correct 213 ms 254840 KB Output is correct
3 Correct 215 ms 254712 KB Output is correct
4 Correct 206 ms 254820 KB Output is correct
5 Correct 214 ms 254840 KB Output is correct
6 Correct 205 ms 254908 KB Output is correct
7 Execution timed out 1097 ms 256972 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 199 ms 254712 KB Output is correct
2 Correct 194 ms 254712 KB Output is correct
3 Correct 214 ms 254768 KB Output is correct
4 Correct 204 ms 254712 KB Output is correct
5 Correct 194 ms 254712 KB Output is correct
6 Correct 213 ms 254756 KB Output is correct
7 Correct 211 ms 254712 KB Output is correct
8 Correct 198 ms 254896 KB Output is correct
9 Correct 217 ms 254752 KB Output is correct
10 Correct 221 ms 254684 KB Output is correct
11 Correct 221 ms 254792 KB Output is correct
12 Correct 215 ms 254712 KB Output is correct
13 Correct 196 ms 254712 KB Output is correct
14 Correct 199 ms 254816 KB Output is correct
15 Correct 239 ms 254716 KB Output is correct
16 Correct 208 ms 254760 KB Output is correct
17 Correct 202 ms 254840 KB Output is correct
18 Correct 206 ms 254700 KB Output is correct
19 Correct 198 ms 254712 KB Output is correct
20 Correct 209 ms 254712 KB Output is correct
21 Correct 211 ms 254840 KB Output is correct
22 Correct 220 ms 254712 KB Output is correct
23 Correct 223 ms 254796 KB Output is correct
24 Correct 215 ms 254712 KB Output is correct
25 Correct 221 ms 254840 KB Output is correct
26 Correct 236 ms 254712 KB Output is correct
27 Correct 213 ms 254712 KB Output is correct
28 Correct 237 ms 254712 KB Output is correct
29 Correct 225 ms 254712 KB Output is correct
30 Correct 227 ms 254684 KB Output is correct
31 Correct 214 ms 254860 KB Output is correct
32 Correct 219 ms 254732 KB Output is correct
33 Correct 209 ms 254840 KB Output is correct
34 Correct 194 ms 254776 KB Output is correct
35 Correct 217 ms 254696 KB Output is correct
36 Correct 214 ms 254840 KB Output is correct
37 Correct 205 ms 254796 KB Output is correct
38 Correct 241 ms 254840 KB Output is correct
39 Correct 201 ms 254712 KB Output is correct
40 Correct 234 ms 254872 KB Output is correct
41 Correct 204 ms 254808 KB Output is correct
42 Correct 218 ms 254856 KB Output is correct
43 Correct 211 ms 254840 KB Output is correct
44 Correct 195 ms 254800 KB Output is correct
45 Correct 221 ms 254840 KB Output is correct
46 Correct 215 ms 254832 KB Output is correct
47 Correct 218 ms 254712 KB Output is correct
48 Correct 211 ms 254840 KB Output is correct
49 Correct 203 ms 254880 KB Output is correct
50 Correct 214 ms 254840 KB Output is correct
51 Correct 208 ms 254684 KB Output is correct
52 Correct 219 ms 254948 KB Output is correct
53 Correct 210 ms 254840 KB Output is correct
54 Correct 224 ms 254832 KB Output is correct
55 Correct 265 ms 254712 KB Output is correct
56 Correct 209 ms 254712 KB Output is correct
57 Correct 197 ms 254932 KB Output is correct
58 Correct 201 ms 254692 KB Output is correct
59 Correct 226 ms 254724 KB Output is correct
60 Correct 213 ms 254840 KB Output is correct
61 Correct 215 ms 254712 KB Output is correct
62 Correct 206 ms 254820 KB Output is correct
63 Correct 214 ms 254840 KB Output is correct
64 Correct 205 ms 254908 KB Output is correct
65 Execution timed out 1097 ms 256972 KB Time limit exceeded
66 Halted 0 ms 0 KB -