#include <bits/stdc++.h>
using namespace std;
#define int long long
#define form2(i, a, b) for (int i = (a); i < (b); ++i)
#define ford2(i, a, b) for (int i = (a-1); i >= (b); --i)
#define form(i, n) form2(i, 0, n)
#define ford(i, n) ford2(i, n, 0)
#define chmax(x, v) x = max(x, (v))
#define chmin(x, v) x = min(x, (v))
#define fi first
#define se second
const long long BIG = 1000000000000000000LL;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
void solve();
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0);
solve();
return 0;
}
const int borne = 1000*1000 + 5;
int dp[borne][2][3];
int len;
int cur[borne];
int cible[borne];
void calc(int dep, int isToggle, int set)
{
int &rep = dp[dep][isToggle][set];
rep = BIG;
if (dep) {
int vc = cur[dep];
if (set < 2) vc = set;
if (isToggle) vc ^= 1;
if (vc != cible[dep]) { rep = BIG; return; }
}
if (dep == len) { rep = 0; return; }
form(newTog, 2) form(newSet, 3) {
int cx = dp[dep+1][newTog][newSet];
if (newTog == 1 && isToggle == 0) ++cx;
if (newSet != set && newSet != 2) ++cx;
chmin(rep, cx);
}
}
void solve()
{
cin >> len;
string s, t;
cin >> s >> t;
form(i, len) cur[i+1] = (s[i] == '0' ? 0 : 1);
form(i, len) cible[i+1] = (t[i] == '0' ? 0 : 1);
ford(i, len) form(a, 2) form(b, 3) calc(i+1,a,b);
calc(0, 0, 2);
cout << dp[0][0][2] << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
3 ms |
384 KB |
Output is correct |
11 |
Correct |
2 ms |
384 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
2 ms |
384 KB |
Output is correct |
14 |
Correct |
3 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
384 KB |
Output is correct |
16 |
Correct |
3 ms |
384 KB |
Output is correct |
17 |
Correct |
2 ms |
384 KB |
Output is correct |
18 |
Correct |
2 ms |
384 KB |
Output is correct |
19 |
Correct |
2 ms |
384 KB |
Output is correct |
20 |
Correct |
2 ms |
384 KB |
Output is correct |
21 |
Correct |
2 ms |
384 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
2 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
384 KB |
Output is correct |
25 |
Correct |
3 ms |
384 KB |
Output is correct |
26 |
Correct |
3 ms |
384 KB |
Output is correct |
27 |
Correct |
2 ms |
356 KB |
Output is correct |
28 |
Correct |
2 ms |
384 KB |
Output is correct |
29 |
Correct |
2 ms |
384 KB |
Output is correct |
30 |
Correct |
2 ms |
384 KB |
Output is correct |
31 |
Correct |
2 ms |
384 KB |
Output is correct |
32 |
Correct |
2 ms |
384 KB |
Output is correct |
33 |
Correct |
3 ms |
332 KB |
Output is correct |
34 |
Correct |
2 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
3 ms |
384 KB |
Output is correct |
11 |
Correct |
2 ms |
384 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
2 ms |
384 KB |
Output is correct |
14 |
Correct |
3 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
384 KB |
Output is correct |
16 |
Correct |
3 ms |
384 KB |
Output is correct |
17 |
Correct |
2 ms |
384 KB |
Output is correct |
18 |
Correct |
2 ms |
384 KB |
Output is correct |
19 |
Correct |
2 ms |
384 KB |
Output is correct |
20 |
Correct |
2 ms |
384 KB |
Output is correct |
21 |
Correct |
2 ms |
384 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
2 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
384 KB |
Output is correct |
25 |
Correct |
3 ms |
384 KB |
Output is correct |
26 |
Correct |
3 ms |
384 KB |
Output is correct |
27 |
Correct |
2 ms |
356 KB |
Output is correct |
28 |
Correct |
2 ms |
384 KB |
Output is correct |
29 |
Correct |
2 ms |
384 KB |
Output is correct |
30 |
Correct |
2 ms |
384 KB |
Output is correct |
31 |
Correct |
2 ms |
384 KB |
Output is correct |
32 |
Correct |
2 ms |
384 KB |
Output is correct |
33 |
Correct |
3 ms |
332 KB |
Output is correct |
34 |
Correct |
2 ms |
384 KB |
Output is correct |
35 |
Correct |
3 ms |
512 KB |
Output is correct |
36 |
Correct |
2 ms |
512 KB |
Output is correct |
37 |
Correct |
2 ms |
512 KB |
Output is correct |
38 |
Correct |
2 ms |
512 KB |
Output is correct |
39 |
Correct |
3 ms |
512 KB |
Output is correct |
40 |
Correct |
3 ms |
512 KB |
Output is correct |
41 |
Correct |
2 ms |
512 KB |
Output is correct |
42 |
Correct |
3 ms |
512 KB |
Output is correct |
43 |
Correct |
4 ms |
600 KB |
Output is correct |
44 |
Correct |
2 ms |
512 KB |
Output is correct |
45 |
Correct |
3 ms |
512 KB |
Output is correct |
46 |
Correct |
3 ms |
560 KB |
Output is correct |
47 |
Correct |
3 ms |
512 KB |
Output is correct |
48 |
Correct |
3 ms |
512 KB |
Output is correct |
49 |
Correct |
2 ms |
512 KB |
Output is correct |
50 |
Correct |
3 ms |
512 KB |
Output is correct |
51 |
Correct |
2 ms |
512 KB |
Output is correct |
52 |
Correct |
2 ms |
512 KB |
Output is correct |
53 |
Correct |
2 ms |
524 KB |
Output is correct |
54 |
Correct |
2 ms |
512 KB |
Output is correct |
55 |
Correct |
3 ms |
512 KB |
Output is correct |
56 |
Correct |
3 ms |
512 KB |
Output is correct |
57 |
Correct |
3 ms |
512 KB |
Output is correct |
58 |
Correct |
2 ms |
512 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
428 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
112 ms |
64988 KB |
Output is correct |
8 |
Correct |
126 ms |
64976 KB |
Output is correct |
9 |
Correct |
127 ms |
65096 KB |
Output is correct |
10 |
Correct |
127 ms |
65100 KB |
Output is correct |
11 |
Correct |
139 ms |
65036 KB |
Output is correct |
12 |
Correct |
130 ms |
65164 KB |
Output is correct |
13 |
Correct |
127 ms |
65004 KB |
Output is correct |
14 |
Correct |
146 ms |
65096 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
3 ms |
384 KB |
Output is correct |
11 |
Correct |
2 ms |
384 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
2 ms |
384 KB |
Output is correct |
14 |
Correct |
3 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
384 KB |
Output is correct |
16 |
Correct |
3 ms |
384 KB |
Output is correct |
17 |
Correct |
2 ms |
384 KB |
Output is correct |
18 |
Correct |
2 ms |
384 KB |
Output is correct |
19 |
Correct |
2 ms |
384 KB |
Output is correct |
20 |
Correct |
2 ms |
384 KB |
Output is correct |
21 |
Correct |
2 ms |
384 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
2 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
384 KB |
Output is correct |
25 |
Correct |
3 ms |
384 KB |
Output is correct |
26 |
Correct |
3 ms |
384 KB |
Output is correct |
27 |
Correct |
2 ms |
356 KB |
Output is correct |
28 |
Correct |
2 ms |
384 KB |
Output is correct |
29 |
Correct |
2 ms |
384 KB |
Output is correct |
30 |
Correct |
2 ms |
384 KB |
Output is correct |
31 |
Correct |
2 ms |
384 KB |
Output is correct |
32 |
Correct |
2 ms |
384 KB |
Output is correct |
33 |
Correct |
3 ms |
332 KB |
Output is correct |
34 |
Correct |
2 ms |
384 KB |
Output is correct |
35 |
Correct |
3 ms |
512 KB |
Output is correct |
36 |
Correct |
2 ms |
512 KB |
Output is correct |
37 |
Correct |
2 ms |
512 KB |
Output is correct |
38 |
Correct |
2 ms |
512 KB |
Output is correct |
39 |
Correct |
3 ms |
512 KB |
Output is correct |
40 |
Correct |
3 ms |
512 KB |
Output is correct |
41 |
Correct |
2 ms |
512 KB |
Output is correct |
42 |
Correct |
3 ms |
512 KB |
Output is correct |
43 |
Correct |
4 ms |
600 KB |
Output is correct |
44 |
Correct |
2 ms |
512 KB |
Output is correct |
45 |
Correct |
3 ms |
512 KB |
Output is correct |
46 |
Correct |
3 ms |
560 KB |
Output is correct |
47 |
Correct |
3 ms |
512 KB |
Output is correct |
48 |
Correct |
3 ms |
512 KB |
Output is correct |
49 |
Correct |
2 ms |
512 KB |
Output is correct |
50 |
Correct |
3 ms |
512 KB |
Output is correct |
51 |
Correct |
2 ms |
512 KB |
Output is correct |
52 |
Correct |
2 ms |
512 KB |
Output is correct |
53 |
Correct |
2 ms |
524 KB |
Output is correct |
54 |
Correct |
2 ms |
512 KB |
Output is correct |
55 |
Correct |
3 ms |
512 KB |
Output is correct |
56 |
Correct |
3 ms |
512 KB |
Output is correct |
57 |
Correct |
3 ms |
512 KB |
Output is correct |
58 |
Correct |
2 ms |
512 KB |
Output is correct |
59 |
Correct |
2 ms |
384 KB |
Output is correct |
60 |
Correct |
2 ms |
428 KB |
Output is correct |
61 |
Correct |
2 ms |
384 KB |
Output is correct |
62 |
Correct |
2 ms |
384 KB |
Output is correct |
63 |
Correct |
2 ms |
384 KB |
Output is correct |
64 |
Correct |
2 ms |
384 KB |
Output is correct |
65 |
Correct |
112 ms |
64988 KB |
Output is correct |
66 |
Correct |
126 ms |
64976 KB |
Output is correct |
67 |
Correct |
127 ms |
65096 KB |
Output is correct |
68 |
Correct |
127 ms |
65100 KB |
Output is correct |
69 |
Correct |
139 ms |
65036 KB |
Output is correct |
70 |
Correct |
130 ms |
65164 KB |
Output is correct |
71 |
Correct |
127 ms |
65004 KB |
Output is correct |
72 |
Correct |
146 ms |
65096 KB |
Output is correct |
73 |
Correct |
153 ms |
66908 KB |
Output is correct |
74 |
Correct |
141 ms |
67020 KB |
Output is correct |
75 |
Correct |
138 ms |
67188 KB |
Output is correct |
76 |
Correct |
115 ms |
67016 KB |
Output is correct |
77 |
Correct |
124 ms |
66968 KB |
Output is correct |
78 |
Correct |
126 ms |
67120 KB |
Output is correct |
79 |
Correct |
119 ms |
67000 KB |
Output is correct |
80 |
Correct |
142 ms |
67044 KB |
Output is correct |
81 |
Correct |
128 ms |
67016 KB |
Output is correct |
82 |
Correct |
131 ms |
67188 KB |
Output is correct |
83 |
Correct |
137 ms |
66924 KB |
Output is correct |
84 |
Correct |
140 ms |
67012 KB |
Output is correct |
85 |
Correct |
118 ms |
67016 KB |
Output is correct |
86 |
Correct |
129 ms |
67012 KB |
Output is correct |
87 |
Correct |
136 ms |
66996 KB |
Output is correct |
88 |
Correct |
120 ms |
67140 KB |
Output is correct |
89 |
Correct |
129 ms |
67016 KB |
Output is correct |
90 |
Correct |
135 ms |
67012 KB |
Output is correct |
91 |
Correct |
117 ms |
67020 KB |
Output is correct |
92 |
Correct |
123 ms |
67088 KB |
Output is correct |
93 |
Correct |
163 ms |
67016 KB |
Output is correct |
94 |
Correct |
116 ms |
67020 KB |
Output is correct |
95 |
Correct |
111 ms |
67016 KB |
Output is correct |
96 |
Correct |
122 ms |
67144 KB |
Output is correct |
97 |
Correct |
145 ms |
67016 KB |
Output is correct |
98 |
Correct |
132 ms |
66988 KB |
Output is correct |
99 |
Correct |
142 ms |
66992 KB |
Output is correct |
100 |
Correct |
131 ms |
67100 KB |
Output is correct |
101 |
Correct |
120 ms |
67016 KB |
Output is correct |
102 |
Correct |
126 ms |
67020 KB |
Output is correct |