#include<bits/stdc++.h>
#define pb push_back
#define ii pair<int,int>
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define INF 100000000000000000
#define modulo 1000000007
#define mod 998244353
#define int long long int
using namespace std;
int dp[1000001][3][2];
int32_t main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n;
cin >> n;
string A, B;
cin >> A >> B;
dp[0][2][0] = 0;
dp[0][0][0] = dp[0][1][0] = 1;
dp[0][2][1] = 1;
dp[0][0][1] = dp[0][1][1] = 2;
for(int q = 0; q < n; q++){
int i = q + 1;
int w = A[q] - '0';
int t = B[q] - '0';
for(int j = 0; j < 3; j++){
for(int a = 0; a < 2; a++){
dp[i][j][a] = INF;
for(int k = 0; k < 3; k++){
for(int b = 0; b < 2; b++){
int c = w;
if(j < 2) c = j;
if(a) c = 1 - c;
if(c != t) continue;
int cost = 0;
if(j != k && j != 2) cost++;
if(a && !b) cost++;
dp[i][j][a] = min(dp[i][j][a], dp[i - 1][k][b] + cost);
}
}
}
}
}
int ans = INF;
for(int i = 0; i < 3; i++)for(int j = 0; j < 2; j++) ans = min(ans, dp[n][i][j]);
cout << ans;
}
# |
Verdict |
Execution time |
Memory |
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 |
248 KB |
Output is correct |
5 |
Correct |
5 ms |
376 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 |
6 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |
11 |
Correct |
5 ms |
388 KB |
Output is correct |
12 |
Correct |
5 ms |
376 KB |
Output is correct |
13 |
Correct |
5 ms |
376 KB |
Output is correct |
14 |
Correct |
5 ms |
376 KB |
Output is correct |
15 |
Correct |
5 ms |
380 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 |
5 ms |
248 KB |
Output is correct |
21 |
Correct |
5 ms |
376 KB |
Output is correct |
22 |
Correct |
5 ms |
380 KB |
Output is correct |
23 |
Correct |
5 ms |
376 KB |
Output is correct |
24 |
Correct |
5 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 |
# |
Verdict |
Execution time |
Memory |
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 |
248 KB |
Output is correct |
5 |
Correct |
5 ms |
376 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 |
6 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |
11 |
Correct |
5 ms |
388 KB |
Output is correct |
12 |
Correct |
5 ms |
376 KB |
Output is correct |
13 |
Correct |
5 ms |
376 KB |
Output is correct |
14 |
Correct |
5 ms |
376 KB |
Output is correct |
15 |
Correct |
5 ms |
380 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 |
5 ms |
248 KB |
Output is correct |
21 |
Correct |
5 ms |
376 KB |
Output is correct |
22 |
Correct |
5 ms |
380 KB |
Output is correct |
23 |
Correct |
5 ms |
376 KB |
Output is correct |
24 |
Correct |
5 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 |
376 KB |
Output is correct |
36 |
Correct |
5 ms |
508 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 |
376 KB |
Output is correct |
40 |
Correct |
5 ms |
380 KB |
Output is correct |
41 |
Correct |
5 ms |
380 KB |
Output is correct |
42 |
Correct |
5 ms |
504 KB |
Output is correct |
43 |
Correct |
5 ms |
376 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 |
376 KB |
Output is correct |
47 |
Correct |
5 ms |
504 KB |
Output is correct |
48 |
Correct |
5 ms |
376 KB |
Output is correct |
49 |
Correct |
5 ms |
376 KB |
Output is correct |
50 |
Correct |
7 ms |
504 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 |
6 ms |
504 KB |
Output is correct |
55 |
Correct |
5 ms |
504 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 |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
504 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 |
121 ms |
51404 KB |
Output is correct |
8 |
Correct |
127 ms |
51356 KB |
Output is correct |
9 |
Correct |
126 ms |
51392 KB |
Output is correct |
10 |
Correct |
126 ms |
51404 KB |
Output is correct |
11 |
Correct |
123 ms |
51396 KB |
Output is correct |
12 |
Correct |
116 ms |
51376 KB |
Output is correct |
13 |
Correct |
116 ms |
51400 KB |
Output is correct |
14 |
Correct |
121 ms |
51400 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
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 |
248 KB |
Output is correct |
5 |
Correct |
5 ms |
376 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 |
6 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |
11 |
Correct |
5 ms |
388 KB |
Output is correct |
12 |
Correct |
5 ms |
376 KB |
Output is correct |
13 |
Correct |
5 ms |
376 KB |
Output is correct |
14 |
Correct |
5 ms |
376 KB |
Output is correct |
15 |
Correct |
5 ms |
380 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 |
5 ms |
248 KB |
Output is correct |
21 |
Correct |
5 ms |
376 KB |
Output is correct |
22 |
Correct |
5 ms |
380 KB |
Output is correct |
23 |
Correct |
5 ms |
376 KB |
Output is correct |
24 |
Correct |
5 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 |
376 KB |
Output is correct |
36 |
Correct |
5 ms |
508 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 |
376 KB |
Output is correct |
40 |
Correct |
5 ms |
380 KB |
Output is correct |
41 |
Correct |
5 ms |
380 KB |
Output is correct |
42 |
Correct |
5 ms |
504 KB |
Output is correct |
43 |
Correct |
5 ms |
376 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 |
376 KB |
Output is correct |
47 |
Correct |
5 ms |
504 KB |
Output is correct |
48 |
Correct |
5 ms |
376 KB |
Output is correct |
49 |
Correct |
5 ms |
376 KB |
Output is correct |
50 |
Correct |
7 ms |
504 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 |
6 ms |
504 KB |
Output is correct |
55 |
Correct |
5 ms |
504 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 |
376 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 |
504 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 |
121 ms |
51404 KB |
Output is correct |
66 |
Correct |
127 ms |
51356 KB |
Output is correct |
67 |
Correct |
126 ms |
51392 KB |
Output is correct |
68 |
Correct |
126 ms |
51404 KB |
Output is correct |
69 |
Correct |
123 ms |
51396 KB |
Output is correct |
70 |
Correct |
116 ms |
51376 KB |
Output is correct |
71 |
Correct |
116 ms |
51400 KB |
Output is correct |
72 |
Correct |
121 ms |
51400 KB |
Output is correct |
73 |
Correct |
127 ms |
51396 KB |
Output is correct |
74 |
Correct |
135 ms |
51308 KB |
Output is correct |
75 |
Correct |
121 ms |
51396 KB |
Output is correct |
76 |
Correct |
124 ms |
51400 KB |
Output is correct |
77 |
Correct |
114 ms |
51400 KB |
Output is correct |
78 |
Correct |
116 ms |
51400 KB |
Output is correct |
79 |
Correct |
136 ms |
51476 KB |
Output is correct |
80 |
Correct |
117 ms |
51400 KB |
Output is correct |
81 |
Correct |
115 ms |
51400 KB |
Output is correct |
82 |
Correct |
122 ms |
51400 KB |
Output is correct |
83 |
Correct |
120 ms |
51400 KB |
Output is correct |
84 |
Correct |
120 ms |
51400 KB |
Output is correct |
85 |
Correct |
123 ms |
51272 KB |
Output is correct |
86 |
Correct |
125 ms |
51404 KB |
Output is correct |
87 |
Correct |
126 ms |
51416 KB |
Output is correct |
88 |
Correct |
135 ms |
51404 KB |
Output is correct |
89 |
Correct |
139 ms |
51400 KB |
Output is correct |
90 |
Correct |
128 ms |
51400 KB |
Output is correct |
91 |
Correct |
134 ms |
51404 KB |
Output is correct |
92 |
Correct |
132 ms |
51404 KB |
Output is correct |
93 |
Correct |
132 ms |
51464 KB |
Output is correct |
94 |
Correct |
129 ms |
51396 KB |
Output is correct |
95 |
Correct |
131 ms |
51396 KB |
Output is correct |
96 |
Correct |
136 ms |
51400 KB |
Output is correct |
97 |
Correct |
132 ms |
51400 KB |
Output is correct |
98 |
Correct |
132 ms |
51384 KB |
Output is correct |
99 |
Correct |
131 ms |
51460 KB |
Output is correct |
100 |
Correct |
132 ms |
51304 KB |
Output is correct |
101 |
Correct |
129 ms |
51404 KB |
Output is correct |
102 |
Correct |
135 ms |
51400 KB |
Output is correct |