#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
const int N = 1e6 + 6;
// msk = reset|set|toggle
int apply(int x, int msk) {
int ret = x;
if(msk & 4) ret = 0;
if(msk & 2) ret = 1;
if(msk & 1) ret ^= 1;
return ret;
}
int dp[N][1 << 3];
int n;
vi A, B;
int main(int argc, char const *argv[])
{
cin.sync_with_stdio(0); cin.tie(0);
cin.exceptions(cin.failbit);
#ifdef LOCAL
freopen("in", "r", stdin);
#endif
cin >> n;
#define read(v) { string s; cin >> s; \
for(int i = 0; i < n; i++) v.emplace_back(s[i] - '0'); }
read(A); read(B);
for(int u = 0; u < 8; u++) dp[n][u] = __builtin_popcount(u);
for(int i = n-1; i >= 0; i--) {
for(int u = 0; u < 8; u++) dp[i][u] = 1e9;
for(int u = 0; u < 8; u++) if((u & 6) != 6) {
for(int v = 0; v < 8; v++) if((v & 6) != 6) {
if(apply(A[i], v) == B[i]) {
dp[i][u] = min(dp[i][u], __builtin_popcount(u ^ v) + dp[i+1][v]);
}
}
}
}
cout << dp[0][0] / 2 << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
248 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
376 KB |
Output is correct |
9 |
Correct |
5 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
376 KB |
Output is correct |
13 |
Correct |
5 ms |
376 KB |
Output is correct |
14 |
Correct |
4 ms |
376 KB |
Output is correct |
15 |
Correct |
5 ms |
376 KB |
Output is correct |
16 |
Correct |
5 ms |
376 KB |
Output is correct |
17 |
Correct |
5 ms |
376 KB |
Output is correct |
18 |
Correct |
5 ms |
376 KB |
Output is correct |
19 |
Correct |
5 ms |
376 KB |
Output is correct |
20 |
Correct |
4 ms |
376 KB |
Output is correct |
21 |
Correct |
5 ms |
376 KB |
Output is correct |
22 |
Correct |
5 ms |
376 KB |
Output is correct |
23 |
Correct |
5 ms |
376 KB |
Output is correct |
24 |
Correct |
4 ms |
376 KB |
Output is correct |
25 |
Correct |
5 ms |
376 KB |
Output is correct |
26 |
Correct |
5 ms |
376 KB |
Output is correct |
27 |
Correct |
5 ms |
376 KB |
Output is correct |
28 |
Correct |
5 ms |
376 KB |
Output is correct |
29 |
Correct |
5 ms |
376 KB |
Output is correct |
30 |
Correct |
5 ms |
376 KB |
Output is correct |
31 |
Correct |
5 ms |
376 KB |
Output is correct |
32 |
Correct |
5 ms |
376 KB |
Output is correct |
33 |
Correct |
5 ms |
376 KB |
Output is correct |
34 |
Correct |
5 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
248 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
376 KB |
Output is correct |
9 |
Correct |
5 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
376 KB |
Output is correct |
13 |
Correct |
5 ms |
376 KB |
Output is correct |
14 |
Correct |
4 ms |
376 KB |
Output is correct |
15 |
Correct |
5 ms |
376 KB |
Output is correct |
16 |
Correct |
5 ms |
376 KB |
Output is correct |
17 |
Correct |
5 ms |
376 KB |
Output is correct |
18 |
Correct |
5 ms |
376 KB |
Output is correct |
19 |
Correct |
5 ms |
376 KB |
Output is correct |
20 |
Correct |
4 ms |
376 KB |
Output is correct |
21 |
Correct |
5 ms |
376 KB |
Output is correct |
22 |
Correct |
5 ms |
376 KB |
Output is correct |
23 |
Correct |
5 ms |
376 KB |
Output is correct |
24 |
Correct |
4 ms |
376 KB |
Output is correct |
25 |
Correct |
5 ms |
376 KB |
Output is correct |
26 |
Correct |
5 ms |
376 KB |
Output is correct |
27 |
Correct |
5 ms |
376 KB |
Output is correct |
28 |
Correct |
5 ms |
376 KB |
Output is correct |
29 |
Correct |
5 ms |
376 KB |
Output is correct |
30 |
Correct |
5 ms |
376 KB |
Output is correct |
31 |
Correct |
5 ms |
376 KB |
Output is correct |
32 |
Correct |
5 ms |
376 KB |
Output is correct |
33 |
Correct |
5 ms |
376 KB |
Output is correct |
34 |
Correct |
5 ms |
376 KB |
Output is correct |
35 |
Correct |
5 ms |
504 KB |
Output is correct |
36 |
Correct |
5 ms |
504 KB |
Output is correct |
37 |
Correct |
5 ms |
376 KB |
Output is correct |
38 |
Correct |
5 ms |
376 KB |
Output is correct |
39 |
Correct |
5 ms |
380 KB |
Output is correct |
40 |
Correct |
5 ms |
380 KB |
Output is correct |
41 |
Correct |
5 ms |
376 KB |
Output is correct |
42 |
Correct |
6 ms |
376 KB |
Output is correct |
43 |
Correct |
5 ms |
380 KB |
Output is correct |
44 |
Correct |
5 ms |
376 KB |
Output is correct |
45 |
Correct |
5 ms |
504 KB |
Output is correct |
46 |
Correct |
5 ms |
380 KB |
Output is correct |
47 |
Correct |
5 ms |
380 KB |
Output is correct |
48 |
Correct |
5 ms |
376 KB |
Output is correct |
49 |
Correct |
5 ms |
376 KB |
Output is correct |
50 |
Correct |
5 ms |
376 KB |
Output is correct |
51 |
Correct |
5 ms |
376 KB |
Output is correct |
52 |
Correct |
5 ms |
376 KB |
Output is correct |
53 |
Correct |
5 ms |
376 KB |
Output is correct |
54 |
Correct |
5 ms |
376 KB |
Output is correct |
55 |
Correct |
5 ms |
376 KB |
Output is correct |
56 |
Correct |
5 ms |
376 KB |
Output is correct |
57 |
Correct |
5 ms |
376 KB |
Output is correct |
58 |
Correct |
5 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
376 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
170 ms |
41600 KB |
Output is correct |
8 |
Correct |
174 ms |
41600 KB |
Output is correct |
9 |
Correct |
171 ms |
41596 KB |
Output is correct |
10 |
Correct |
175 ms |
41600 KB |
Output is correct |
11 |
Correct |
171 ms |
41564 KB |
Output is correct |
12 |
Correct |
172 ms |
41620 KB |
Output is correct |
13 |
Correct |
177 ms |
41592 KB |
Output is correct |
14 |
Correct |
180 ms |
41572 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
248 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
376 KB |
Output is correct |
9 |
Correct |
5 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
376 KB |
Output is correct |
13 |
Correct |
5 ms |
376 KB |
Output is correct |
14 |
Correct |
4 ms |
376 KB |
Output is correct |
15 |
Correct |
5 ms |
376 KB |
Output is correct |
16 |
Correct |
5 ms |
376 KB |
Output is correct |
17 |
Correct |
5 ms |
376 KB |
Output is correct |
18 |
Correct |
5 ms |
376 KB |
Output is correct |
19 |
Correct |
5 ms |
376 KB |
Output is correct |
20 |
Correct |
4 ms |
376 KB |
Output is correct |
21 |
Correct |
5 ms |
376 KB |
Output is correct |
22 |
Correct |
5 ms |
376 KB |
Output is correct |
23 |
Correct |
5 ms |
376 KB |
Output is correct |
24 |
Correct |
4 ms |
376 KB |
Output is correct |
25 |
Correct |
5 ms |
376 KB |
Output is correct |
26 |
Correct |
5 ms |
376 KB |
Output is correct |
27 |
Correct |
5 ms |
376 KB |
Output is correct |
28 |
Correct |
5 ms |
376 KB |
Output is correct |
29 |
Correct |
5 ms |
376 KB |
Output is correct |
30 |
Correct |
5 ms |
376 KB |
Output is correct |
31 |
Correct |
5 ms |
376 KB |
Output is correct |
32 |
Correct |
5 ms |
376 KB |
Output is correct |
33 |
Correct |
5 ms |
376 KB |
Output is correct |
34 |
Correct |
5 ms |
376 KB |
Output is correct |
35 |
Correct |
5 ms |
504 KB |
Output is correct |
36 |
Correct |
5 ms |
504 KB |
Output is correct |
37 |
Correct |
5 ms |
376 KB |
Output is correct |
38 |
Correct |
5 ms |
376 KB |
Output is correct |
39 |
Correct |
5 ms |
380 KB |
Output is correct |
40 |
Correct |
5 ms |
380 KB |
Output is correct |
41 |
Correct |
5 ms |
376 KB |
Output is correct |
42 |
Correct |
6 ms |
376 KB |
Output is correct |
43 |
Correct |
5 ms |
380 KB |
Output is correct |
44 |
Correct |
5 ms |
376 KB |
Output is correct |
45 |
Correct |
5 ms |
504 KB |
Output is correct |
46 |
Correct |
5 ms |
380 KB |
Output is correct |
47 |
Correct |
5 ms |
380 KB |
Output is correct |
48 |
Correct |
5 ms |
376 KB |
Output is correct |
49 |
Correct |
5 ms |
376 KB |
Output is correct |
50 |
Correct |
5 ms |
376 KB |
Output is correct |
51 |
Correct |
5 ms |
376 KB |
Output is correct |
52 |
Correct |
5 ms |
376 KB |
Output is correct |
53 |
Correct |
5 ms |
376 KB |
Output is correct |
54 |
Correct |
5 ms |
376 KB |
Output is correct |
55 |
Correct |
5 ms |
376 KB |
Output is correct |
56 |
Correct |
5 ms |
376 KB |
Output is correct |
57 |
Correct |
5 ms |
376 KB |
Output is correct |
58 |
Correct |
5 ms |
504 KB |
Output is correct |
59 |
Correct |
5 ms |
376 KB |
Output is correct |
60 |
Correct |
5 ms |
376 KB |
Output is correct |
61 |
Correct |
5 ms |
376 KB |
Output is correct |
62 |
Correct |
5 ms |
376 KB |
Output is correct |
63 |
Correct |
5 ms |
376 KB |
Output is correct |
64 |
Correct |
5 ms |
376 KB |
Output is correct |
65 |
Correct |
170 ms |
41600 KB |
Output is correct |
66 |
Correct |
174 ms |
41600 KB |
Output is correct |
67 |
Correct |
171 ms |
41596 KB |
Output is correct |
68 |
Correct |
175 ms |
41600 KB |
Output is correct |
69 |
Correct |
171 ms |
41564 KB |
Output is correct |
70 |
Correct |
172 ms |
41620 KB |
Output is correct |
71 |
Correct |
177 ms |
41592 KB |
Output is correct |
72 |
Correct |
180 ms |
41572 KB |
Output is correct |
73 |
Correct |
178 ms |
41492 KB |
Output is correct |
74 |
Correct |
177 ms |
41604 KB |
Output is correct |
75 |
Correct |
180 ms |
41588 KB |
Output is correct |
76 |
Correct |
176 ms |
41596 KB |
Output is correct |
77 |
Correct |
172 ms |
41592 KB |
Output is correct |
78 |
Correct |
169 ms |
41592 KB |
Output is correct |
79 |
Correct |
171 ms |
41596 KB |
Output is correct |
80 |
Correct |
177 ms |
41600 KB |
Output is correct |
81 |
Correct |
172 ms |
41596 KB |
Output is correct |
82 |
Correct |
178 ms |
41592 KB |
Output is correct |
83 |
Correct |
186 ms |
41592 KB |
Output is correct |
84 |
Correct |
181 ms |
41592 KB |
Output is correct |
85 |
Correct |
175 ms |
41604 KB |
Output is correct |
86 |
Correct |
183 ms |
41600 KB |
Output is correct |
87 |
Correct |
177 ms |
41600 KB |
Output is correct |
88 |
Correct |
182 ms |
41604 KB |
Output is correct |
89 |
Correct |
176 ms |
41604 KB |
Output is correct |
90 |
Correct |
180 ms |
41556 KB |
Output is correct |
91 |
Correct |
183 ms |
41512 KB |
Output is correct |
92 |
Correct |
183 ms |
41564 KB |
Output is correct |
93 |
Correct |
186 ms |
41592 KB |
Output is correct |
94 |
Correct |
184 ms |
41604 KB |
Output is correct |
95 |
Correct |
188 ms |
41604 KB |
Output is correct |
96 |
Correct |
189 ms |
41600 KB |
Output is correct |
97 |
Correct |
186 ms |
41604 KB |
Output is correct |
98 |
Correct |
186 ms |
41600 KB |
Output is correct |
99 |
Correct |
184 ms |
41596 KB |
Output is correct |
100 |
Correct |
187 ms |
41600 KB |
Output is correct |
101 |
Correct |
184 ms |
41600 KB |
Output is correct |
102 |
Correct |
188 ms |
41604 KB |
Output is correct |