#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MN = 1001000;
const ll INFL = 1e18;
ll dp[3][2][MN];
int main() {
ios::sync_with_stdio(0);cin.tie(0);
ll n;
cin >> n;
string s,t;
cin >> s >> t;
for(int i=0;i<3;i++) {
for(int j=0;j<2;j++) {
for(int e=0;e<MN;e++) {
dp[i][j][e] = INFL;
}
}
}
dp[2][0][0] = 0;
for(int i=0;i<n;i++) {
int sc = s[i]-'0';
int tc = t[i]-'0';
for(int sv=0;sv<3;sv++) {
for(int st=0;st<2;st++) {
for(int to=0;to<2;to++) {
dp[tc^to][to][i+1] = min(dp[tc^to][to][i+1],dp[sv][st][i] + (sv != (tc^to)) + (to > st));
if(sc == tc) {
dp[2][0][i+1] = min(dp[2][0][i+1], dp[sv][st][i]);
} else {
dp[2][1][i+1] = min(dp[2][1][i+1], dp[sv][st][i] + (st != 1));
}
}
}
}
}
ll res = INFL;
for(int i=0;i<3;i++) {
for(int j=0;j<2;j++) {
res = min(res,dp[i][j][n]);
}
}
cout << res << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
29 ms |
47340 KB |
Output is correct |
2 |
Correct |
27 ms |
47388 KB |
Output is correct |
3 |
Correct |
28 ms |
47340 KB |
Output is correct |
4 |
Correct |
27 ms |
47340 KB |
Output is correct |
5 |
Correct |
28 ms |
47340 KB |
Output is correct |
6 |
Correct |
27 ms |
47340 KB |
Output is correct |
7 |
Correct |
28 ms |
47340 KB |
Output is correct |
8 |
Correct |
28 ms |
47340 KB |
Output is correct |
9 |
Correct |
29 ms |
47340 KB |
Output is correct |
10 |
Correct |
28 ms |
47340 KB |
Output is correct |
11 |
Correct |
28 ms |
47340 KB |
Output is correct |
12 |
Correct |
28 ms |
47340 KB |
Output is correct |
13 |
Correct |
28 ms |
47340 KB |
Output is correct |
14 |
Correct |
28 ms |
47340 KB |
Output is correct |
15 |
Correct |
28 ms |
47340 KB |
Output is correct |
16 |
Correct |
27 ms |
47340 KB |
Output is correct |
17 |
Correct |
27 ms |
47340 KB |
Output is correct |
18 |
Correct |
28 ms |
47340 KB |
Output is correct |
19 |
Correct |
28 ms |
47340 KB |
Output is correct |
20 |
Correct |
27 ms |
47340 KB |
Output is correct |
21 |
Correct |
27 ms |
47340 KB |
Output is correct |
22 |
Correct |
27 ms |
47340 KB |
Output is correct |
23 |
Correct |
28 ms |
47340 KB |
Output is correct |
24 |
Correct |
28 ms |
47340 KB |
Output is correct |
25 |
Correct |
28 ms |
47340 KB |
Output is correct |
26 |
Correct |
28 ms |
47340 KB |
Output is correct |
27 |
Correct |
27 ms |
47340 KB |
Output is correct |
28 |
Correct |
28 ms |
47340 KB |
Output is correct |
29 |
Correct |
30 ms |
47340 KB |
Output is correct |
30 |
Correct |
28 ms |
47340 KB |
Output is correct |
31 |
Correct |
28 ms |
47340 KB |
Output is correct |
32 |
Correct |
28 ms |
47340 KB |
Output is correct |
33 |
Correct |
27 ms |
47340 KB |
Output is correct |
34 |
Correct |
27 ms |
47340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
29 ms |
47340 KB |
Output is correct |
2 |
Correct |
27 ms |
47388 KB |
Output is correct |
3 |
Correct |
28 ms |
47340 KB |
Output is correct |
4 |
Correct |
27 ms |
47340 KB |
Output is correct |
5 |
Correct |
28 ms |
47340 KB |
Output is correct |
6 |
Correct |
27 ms |
47340 KB |
Output is correct |
7 |
Correct |
28 ms |
47340 KB |
Output is correct |
8 |
Correct |
28 ms |
47340 KB |
Output is correct |
9 |
Correct |
29 ms |
47340 KB |
Output is correct |
10 |
Correct |
28 ms |
47340 KB |
Output is correct |
11 |
Correct |
28 ms |
47340 KB |
Output is correct |
12 |
Correct |
28 ms |
47340 KB |
Output is correct |
13 |
Correct |
28 ms |
47340 KB |
Output is correct |
14 |
Correct |
28 ms |
47340 KB |
Output is correct |
15 |
Correct |
28 ms |
47340 KB |
Output is correct |
16 |
Correct |
27 ms |
47340 KB |
Output is correct |
17 |
Correct |
27 ms |
47340 KB |
Output is correct |
18 |
Correct |
28 ms |
47340 KB |
Output is correct |
19 |
Correct |
28 ms |
47340 KB |
Output is correct |
20 |
Correct |
27 ms |
47340 KB |
Output is correct |
21 |
Correct |
27 ms |
47340 KB |
Output is correct |
22 |
Correct |
27 ms |
47340 KB |
Output is correct |
23 |
Correct |
28 ms |
47340 KB |
Output is correct |
24 |
Correct |
28 ms |
47340 KB |
Output is correct |
25 |
Correct |
28 ms |
47340 KB |
Output is correct |
26 |
Correct |
28 ms |
47340 KB |
Output is correct |
27 |
Correct |
27 ms |
47340 KB |
Output is correct |
28 |
Correct |
28 ms |
47340 KB |
Output is correct |
29 |
Correct |
30 ms |
47340 KB |
Output is correct |
30 |
Correct |
28 ms |
47340 KB |
Output is correct |
31 |
Correct |
28 ms |
47340 KB |
Output is correct |
32 |
Correct |
28 ms |
47340 KB |
Output is correct |
33 |
Correct |
27 ms |
47340 KB |
Output is correct |
34 |
Correct |
27 ms |
47340 KB |
Output is correct |
35 |
Correct |
28 ms |
47340 KB |
Output is correct |
36 |
Correct |
28 ms |
47340 KB |
Output is correct |
37 |
Correct |
28 ms |
47340 KB |
Output is correct |
38 |
Correct |
30 ms |
47340 KB |
Output is correct |
39 |
Correct |
27 ms |
47340 KB |
Output is correct |
40 |
Correct |
27 ms |
47340 KB |
Output is correct |
41 |
Correct |
28 ms |
47340 KB |
Output is correct |
42 |
Correct |
28 ms |
47340 KB |
Output is correct |
43 |
Correct |
28 ms |
47468 KB |
Output is correct |
44 |
Correct |
27 ms |
47340 KB |
Output is correct |
45 |
Correct |
28 ms |
47340 KB |
Output is correct |
46 |
Correct |
27 ms |
47340 KB |
Output is correct |
47 |
Correct |
28 ms |
47340 KB |
Output is correct |
48 |
Correct |
28 ms |
47340 KB |
Output is correct |
49 |
Correct |
28 ms |
47340 KB |
Output is correct |
50 |
Correct |
28 ms |
47340 KB |
Output is correct |
51 |
Correct |
28 ms |
47340 KB |
Output is correct |
52 |
Correct |
28 ms |
47340 KB |
Output is correct |
53 |
Correct |
30 ms |
47468 KB |
Output is correct |
54 |
Correct |
28 ms |
47340 KB |
Output is correct |
55 |
Correct |
28 ms |
47340 KB |
Output is correct |
56 |
Correct |
28 ms |
47340 KB |
Output is correct |
57 |
Correct |
28 ms |
47340 KB |
Output is correct |
58 |
Correct |
28 ms |
47340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
28 ms |
47340 KB |
Output is correct |
2 |
Correct |
27 ms |
47340 KB |
Output is correct |
3 |
Correct |
28 ms |
47340 KB |
Output is correct |
4 |
Correct |
29 ms |
47340 KB |
Output is correct |
5 |
Correct |
29 ms |
47468 KB |
Output is correct |
6 |
Correct |
28 ms |
47340 KB |
Output is correct |
7 |
Correct |
89 ms |
51388 KB |
Output is correct |
8 |
Correct |
88 ms |
51388 KB |
Output is correct |
9 |
Correct |
95 ms |
51380 KB |
Output is correct |
10 |
Correct |
89 ms |
51384 KB |
Output is correct |
11 |
Correct |
87 ms |
51388 KB |
Output is correct |
12 |
Correct |
88 ms |
51508 KB |
Output is correct |
13 |
Correct |
89 ms |
51388 KB |
Output is correct |
14 |
Correct |
88 ms |
51380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
29 ms |
47340 KB |
Output is correct |
2 |
Correct |
27 ms |
47388 KB |
Output is correct |
3 |
Correct |
28 ms |
47340 KB |
Output is correct |
4 |
Correct |
27 ms |
47340 KB |
Output is correct |
5 |
Correct |
28 ms |
47340 KB |
Output is correct |
6 |
Correct |
27 ms |
47340 KB |
Output is correct |
7 |
Correct |
28 ms |
47340 KB |
Output is correct |
8 |
Correct |
28 ms |
47340 KB |
Output is correct |
9 |
Correct |
29 ms |
47340 KB |
Output is correct |
10 |
Correct |
28 ms |
47340 KB |
Output is correct |
11 |
Correct |
28 ms |
47340 KB |
Output is correct |
12 |
Correct |
28 ms |
47340 KB |
Output is correct |
13 |
Correct |
28 ms |
47340 KB |
Output is correct |
14 |
Correct |
28 ms |
47340 KB |
Output is correct |
15 |
Correct |
28 ms |
47340 KB |
Output is correct |
16 |
Correct |
27 ms |
47340 KB |
Output is correct |
17 |
Correct |
27 ms |
47340 KB |
Output is correct |
18 |
Correct |
28 ms |
47340 KB |
Output is correct |
19 |
Correct |
28 ms |
47340 KB |
Output is correct |
20 |
Correct |
27 ms |
47340 KB |
Output is correct |
21 |
Correct |
27 ms |
47340 KB |
Output is correct |
22 |
Correct |
27 ms |
47340 KB |
Output is correct |
23 |
Correct |
28 ms |
47340 KB |
Output is correct |
24 |
Correct |
28 ms |
47340 KB |
Output is correct |
25 |
Correct |
28 ms |
47340 KB |
Output is correct |
26 |
Correct |
28 ms |
47340 KB |
Output is correct |
27 |
Correct |
27 ms |
47340 KB |
Output is correct |
28 |
Correct |
28 ms |
47340 KB |
Output is correct |
29 |
Correct |
30 ms |
47340 KB |
Output is correct |
30 |
Correct |
28 ms |
47340 KB |
Output is correct |
31 |
Correct |
28 ms |
47340 KB |
Output is correct |
32 |
Correct |
28 ms |
47340 KB |
Output is correct |
33 |
Correct |
27 ms |
47340 KB |
Output is correct |
34 |
Correct |
27 ms |
47340 KB |
Output is correct |
35 |
Correct |
28 ms |
47340 KB |
Output is correct |
36 |
Correct |
28 ms |
47340 KB |
Output is correct |
37 |
Correct |
28 ms |
47340 KB |
Output is correct |
38 |
Correct |
30 ms |
47340 KB |
Output is correct |
39 |
Correct |
27 ms |
47340 KB |
Output is correct |
40 |
Correct |
27 ms |
47340 KB |
Output is correct |
41 |
Correct |
28 ms |
47340 KB |
Output is correct |
42 |
Correct |
28 ms |
47340 KB |
Output is correct |
43 |
Correct |
28 ms |
47468 KB |
Output is correct |
44 |
Correct |
27 ms |
47340 KB |
Output is correct |
45 |
Correct |
28 ms |
47340 KB |
Output is correct |
46 |
Correct |
27 ms |
47340 KB |
Output is correct |
47 |
Correct |
28 ms |
47340 KB |
Output is correct |
48 |
Correct |
28 ms |
47340 KB |
Output is correct |
49 |
Correct |
28 ms |
47340 KB |
Output is correct |
50 |
Correct |
28 ms |
47340 KB |
Output is correct |
51 |
Correct |
28 ms |
47340 KB |
Output is correct |
52 |
Correct |
28 ms |
47340 KB |
Output is correct |
53 |
Correct |
30 ms |
47468 KB |
Output is correct |
54 |
Correct |
28 ms |
47340 KB |
Output is correct |
55 |
Correct |
28 ms |
47340 KB |
Output is correct |
56 |
Correct |
28 ms |
47340 KB |
Output is correct |
57 |
Correct |
28 ms |
47340 KB |
Output is correct |
58 |
Correct |
28 ms |
47340 KB |
Output is correct |
59 |
Correct |
28 ms |
47340 KB |
Output is correct |
60 |
Correct |
27 ms |
47340 KB |
Output is correct |
61 |
Correct |
28 ms |
47340 KB |
Output is correct |
62 |
Correct |
29 ms |
47340 KB |
Output is correct |
63 |
Correct |
29 ms |
47468 KB |
Output is correct |
64 |
Correct |
28 ms |
47340 KB |
Output is correct |
65 |
Correct |
89 ms |
51388 KB |
Output is correct |
66 |
Correct |
88 ms |
51388 KB |
Output is correct |
67 |
Correct |
95 ms |
51380 KB |
Output is correct |
68 |
Correct |
89 ms |
51384 KB |
Output is correct |
69 |
Correct |
87 ms |
51388 KB |
Output is correct |
70 |
Correct |
88 ms |
51508 KB |
Output is correct |
71 |
Correct |
89 ms |
51388 KB |
Output is correct |
72 |
Correct |
88 ms |
51380 KB |
Output is correct |
73 |
Correct |
87 ms |
51380 KB |
Output is correct |
74 |
Correct |
89 ms |
51516 KB |
Output is correct |
75 |
Correct |
87 ms |
51388 KB |
Output is correct |
76 |
Correct |
87 ms |
51380 KB |
Output is correct |
77 |
Correct |
88 ms |
51388 KB |
Output is correct |
78 |
Correct |
90 ms |
51516 KB |
Output is correct |
79 |
Correct |
94 ms |
51508 KB |
Output is correct |
80 |
Correct |
88 ms |
51380 KB |
Output is correct |
81 |
Correct |
88 ms |
51380 KB |
Output is correct |
82 |
Correct |
88 ms |
51508 KB |
Output is correct |
83 |
Correct |
93 ms |
51388 KB |
Output is correct |
84 |
Correct |
93 ms |
51380 KB |
Output is correct |
85 |
Correct |
94 ms |
51388 KB |
Output is correct |
86 |
Correct |
93 ms |
51384 KB |
Output is correct |
87 |
Correct |
97 ms |
51508 KB |
Output is correct |
88 |
Correct |
95 ms |
51380 KB |
Output is correct |
89 |
Correct |
94 ms |
51388 KB |
Output is correct |
90 |
Correct |
93 ms |
51380 KB |
Output is correct |
91 |
Correct |
96 ms |
51508 KB |
Output is correct |
92 |
Correct |
95 ms |
51508 KB |
Output is correct |
93 |
Correct |
93 ms |
51388 KB |
Output is correct |
94 |
Correct |
94 ms |
51380 KB |
Output is correct |
95 |
Correct |
95 ms |
51508 KB |
Output is correct |
96 |
Correct |
94 ms |
51380 KB |
Output is correct |
97 |
Correct |
94 ms |
51380 KB |
Output is correct |
98 |
Correct |
97 ms |
51384 KB |
Output is correct |
99 |
Correct |
92 ms |
51380 KB |
Output is correct |
100 |
Correct |
97 ms |
51484 KB |
Output is correct |
101 |
Correct |
94 ms |
51508 KB |
Output is correct |
102 |
Correct |
93 ms |
51384 KB |
Output is correct |