#include<bits/stdc++.h>
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
#define pil pair<int,long long>
const int maxn=1e6+9;
int f[maxn][3][2];
int a[maxn],b[maxn];
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
//freopen("temp.INP","r",stdin);
//freopen("temp.OUT","w",stdout);
int n;
cin>>n;
string s,t;
cin>>s>>t;
s=" "+s;
t=" "+t;
for1(i,1,n){
if (s[i]=='1')a[i]=1;
if (t[i]=='1')b[i]=1;
}
for1(i,0,n){
for1(j,0,2){
for1(k,0,1){
f[i][j][k]=n+1;
}
}
}
f[0][0][0]=0;
//turn on/off ? then toggle later
//1 on 2 off
for1(i,1,n){
for1(newj,0,2){
for1(newk,0,1){
for1(j,0,2){
for1(k,0,1){
int cost=(f[i-1][j][k]+(j!=newj&&newj!=0)+(k!=newk&&newk==1));
int newa=a[i];
if (newj==1)newa=1;
if (newj==2)newa=0;
if (newk==1)newa=1-newa;
if (newa!=b[i])continue;
f[i][newj][newk]=min(f[i][newj][newk],cost);
}
}
}
}
}
int ans=n+1;
for1(j,0,2)for1(k,0,1)ans=min(ans,f[n][j][k]);
cout<<ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4568 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
4444 KB |
Output is correct |
6 |
Correct |
1 ms |
4444 KB |
Output is correct |
7 |
Correct |
1 ms |
4700 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
4444 KB |
Output is correct |
10 |
Correct |
1 ms |
4444 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
4444 KB |
Output is correct |
13 |
Correct |
1 ms |
4444 KB |
Output is correct |
14 |
Correct |
1 ms |
4444 KB |
Output is correct |
15 |
Correct |
1 ms |
4444 KB |
Output is correct |
16 |
Correct |
1 ms |
4572 KB |
Output is correct |
17 |
Correct |
1 ms |
4444 KB |
Output is correct |
18 |
Correct |
1 ms |
4444 KB |
Output is correct |
19 |
Correct |
1 ms |
4440 KB |
Output is correct |
20 |
Correct |
1 ms |
4440 KB |
Output is correct |
21 |
Correct |
1 ms |
4448 KB |
Output is correct |
22 |
Correct |
1 ms |
4448 KB |
Output is correct |
23 |
Correct |
1 ms |
4448 KB |
Output is correct |
24 |
Correct |
1 ms |
4448 KB |
Output is correct |
25 |
Correct |
1 ms |
4448 KB |
Output is correct |
26 |
Correct |
1 ms |
4444 KB |
Output is correct |
27 |
Correct |
1 ms |
4444 KB |
Output is correct |
28 |
Correct |
1 ms |
4444 KB |
Output is correct |
29 |
Correct |
1 ms |
4444 KB |
Output is correct |
30 |
Correct |
1 ms |
4444 KB |
Output is correct |
31 |
Correct |
1 ms |
4444 KB |
Output is correct |
32 |
Correct |
1 ms |
4444 KB |
Output is correct |
33 |
Correct |
1 ms |
4444 KB |
Output is correct |
34 |
Correct |
1 ms |
4444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4568 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
4444 KB |
Output is correct |
6 |
Correct |
1 ms |
4444 KB |
Output is correct |
7 |
Correct |
1 ms |
4700 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
4444 KB |
Output is correct |
10 |
Correct |
1 ms |
4444 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
4444 KB |
Output is correct |
13 |
Correct |
1 ms |
4444 KB |
Output is correct |
14 |
Correct |
1 ms |
4444 KB |
Output is correct |
15 |
Correct |
1 ms |
4444 KB |
Output is correct |
16 |
Correct |
1 ms |
4572 KB |
Output is correct |
17 |
Correct |
1 ms |
4444 KB |
Output is correct |
18 |
Correct |
1 ms |
4444 KB |
Output is correct |
19 |
Correct |
1 ms |
4440 KB |
Output is correct |
20 |
Correct |
1 ms |
4440 KB |
Output is correct |
21 |
Correct |
1 ms |
4448 KB |
Output is correct |
22 |
Correct |
1 ms |
4448 KB |
Output is correct |
23 |
Correct |
1 ms |
4448 KB |
Output is correct |
24 |
Correct |
1 ms |
4448 KB |
Output is correct |
25 |
Correct |
1 ms |
4448 KB |
Output is correct |
26 |
Correct |
1 ms |
4444 KB |
Output is correct |
27 |
Correct |
1 ms |
4444 KB |
Output is correct |
28 |
Correct |
1 ms |
4444 KB |
Output is correct |
29 |
Correct |
1 ms |
4444 KB |
Output is correct |
30 |
Correct |
1 ms |
4444 KB |
Output is correct |
31 |
Correct |
1 ms |
4444 KB |
Output is correct |
32 |
Correct |
1 ms |
4444 KB |
Output is correct |
33 |
Correct |
1 ms |
4444 KB |
Output is correct |
34 |
Correct |
1 ms |
4444 KB |
Output is correct |
35 |
Correct |
1 ms |
4444 KB |
Output is correct |
36 |
Correct |
1 ms |
2396 KB |
Output is correct |
37 |
Correct |
1 ms |
2396 KB |
Output is correct |
38 |
Correct |
1 ms |
4440 KB |
Output is correct |
39 |
Correct |
1 ms |
4444 KB |
Output is correct |
40 |
Correct |
1 ms |
4444 KB |
Output is correct |
41 |
Correct |
1 ms |
4448 KB |
Output is correct |
42 |
Correct |
1 ms |
4440 KB |
Output is correct |
43 |
Correct |
1 ms |
4440 KB |
Output is correct |
44 |
Correct |
2 ms |
4440 KB |
Output is correct |
45 |
Correct |
1 ms |
4444 KB |
Output is correct |
46 |
Correct |
1 ms |
4560 KB |
Output is correct |
47 |
Correct |
1 ms |
4444 KB |
Output is correct |
48 |
Correct |
1 ms |
4444 KB |
Output is correct |
49 |
Correct |
1 ms |
4444 KB |
Output is correct |
50 |
Correct |
1 ms |
4444 KB |
Output is correct |
51 |
Correct |
1 ms |
4444 KB |
Output is correct |
52 |
Correct |
1 ms |
4588 KB |
Output is correct |
53 |
Correct |
1 ms |
4444 KB |
Output is correct |
54 |
Correct |
1 ms |
4444 KB |
Output is correct |
55 |
Correct |
1 ms |
4444 KB |
Output is correct |
56 |
Correct |
1 ms |
4444 KB |
Output is correct |
57 |
Correct |
1 ms |
4444 KB |
Output is correct |
58 |
Correct |
1 ms |
4444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2512 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
80 ms |
29188 KB |
Output is correct |
8 |
Correct |
73 ms |
33532 KB |
Output is correct |
9 |
Correct |
73 ms |
33532 KB |
Output is correct |
10 |
Correct |
77 ms |
33540 KB |
Output is correct |
11 |
Correct |
72 ms |
33544 KB |
Output is correct |
12 |
Correct |
79 ms |
33540 KB |
Output is correct |
13 |
Correct |
73 ms |
33540 KB |
Output is correct |
14 |
Correct |
74 ms |
33540 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4568 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
4444 KB |
Output is correct |
6 |
Correct |
1 ms |
4444 KB |
Output is correct |
7 |
Correct |
1 ms |
4700 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
4444 KB |
Output is correct |
10 |
Correct |
1 ms |
4444 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
4444 KB |
Output is correct |
13 |
Correct |
1 ms |
4444 KB |
Output is correct |
14 |
Correct |
1 ms |
4444 KB |
Output is correct |
15 |
Correct |
1 ms |
4444 KB |
Output is correct |
16 |
Correct |
1 ms |
4572 KB |
Output is correct |
17 |
Correct |
1 ms |
4444 KB |
Output is correct |
18 |
Correct |
1 ms |
4444 KB |
Output is correct |
19 |
Correct |
1 ms |
4440 KB |
Output is correct |
20 |
Correct |
1 ms |
4440 KB |
Output is correct |
21 |
Correct |
1 ms |
4448 KB |
Output is correct |
22 |
Correct |
1 ms |
4448 KB |
Output is correct |
23 |
Correct |
1 ms |
4448 KB |
Output is correct |
24 |
Correct |
1 ms |
4448 KB |
Output is correct |
25 |
Correct |
1 ms |
4448 KB |
Output is correct |
26 |
Correct |
1 ms |
4444 KB |
Output is correct |
27 |
Correct |
1 ms |
4444 KB |
Output is correct |
28 |
Correct |
1 ms |
4444 KB |
Output is correct |
29 |
Correct |
1 ms |
4444 KB |
Output is correct |
30 |
Correct |
1 ms |
4444 KB |
Output is correct |
31 |
Correct |
1 ms |
4444 KB |
Output is correct |
32 |
Correct |
1 ms |
4444 KB |
Output is correct |
33 |
Correct |
1 ms |
4444 KB |
Output is correct |
34 |
Correct |
1 ms |
4444 KB |
Output is correct |
35 |
Correct |
1 ms |
4444 KB |
Output is correct |
36 |
Correct |
1 ms |
2396 KB |
Output is correct |
37 |
Correct |
1 ms |
2396 KB |
Output is correct |
38 |
Correct |
1 ms |
4440 KB |
Output is correct |
39 |
Correct |
1 ms |
4444 KB |
Output is correct |
40 |
Correct |
1 ms |
4444 KB |
Output is correct |
41 |
Correct |
1 ms |
4448 KB |
Output is correct |
42 |
Correct |
1 ms |
4440 KB |
Output is correct |
43 |
Correct |
1 ms |
4440 KB |
Output is correct |
44 |
Correct |
2 ms |
4440 KB |
Output is correct |
45 |
Correct |
1 ms |
4444 KB |
Output is correct |
46 |
Correct |
1 ms |
4560 KB |
Output is correct |
47 |
Correct |
1 ms |
4444 KB |
Output is correct |
48 |
Correct |
1 ms |
4444 KB |
Output is correct |
49 |
Correct |
1 ms |
4444 KB |
Output is correct |
50 |
Correct |
1 ms |
4444 KB |
Output is correct |
51 |
Correct |
1 ms |
4444 KB |
Output is correct |
52 |
Correct |
1 ms |
4588 KB |
Output is correct |
53 |
Correct |
1 ms |
4444 KB |
Output is correct |
54 |
Correct |
1 ms |
4444 KB |
Output is correct |
55 |
Correct |
1 ms |
4444 KB |
Output is correct |
56 |
Correct |
1 ms |
4444 KB |
Output is correct |
57 |
Correct |
1 ms |
4444 KB |
Output is correct |
58 |
Correct |
1 ms |
4444 KB |
Output is correct |
59 |
Correct |
1 ms |
2392 KB |
Output is correct |
60 |
Correct |
1 ms |
2396 KB |
Output is correct |
61 |
Correct |
1 ms |
2396 KB |
Output is correct |
62 |
Correct |
1 ms |
2396 KB |
Output is correct |
63 |
Correct |
1 ms |
2512 KB |
Output is correct |
64 |
Correct |
0 ms |
2396 KB |
Output is correct |
65 |
Correct |
80 ms |
29188 KB |
Output is correct |
66 |
Correct |
73 ms |
33532 KB |
Output is correct |
67 |
Correct |
73 ms |
33532 KB |
Output is correct |
68 |
Correct |
77 ms |
33540 KB |
Output is correct |
69 |
Correct |
72 ms |
33544 KB |
Output is correct |
70 |
Correct |
79 ms |
33540 KB |
Output is correct |
71 |
Correct |
73 ms |
33540 KB |
Output is correct |
72 |
Correct |
74 ms |
33540 KB |
Output is correct |
73 |
Correct |
77 ms |
33496 KB |
Output is correct |
74 |
Correct |
74 ms |
35572 KB |
Output is correct |
75 |
Correct |
74 ms |
35580 KB |
Output is correct |
76 |
Correct |
74 ms |
35652 KB |
Output is correct |
77 |
Correct |
73 ms |
35576 KB |
Output is correct |
78 |
Correct |
73 ms |
35580 KB |
Output is correct |
79 |
Correct |
74 ms |
35588 KB |
Output is correct |
80 |
Correct |
73 ms |
35588 KB |
Output is correct |
81 |
Correct |
72 ms |
35484 KB |
Output is correct |
82 |
Correct |
78 ms |
35496 KB |
Output is correct |
83 |
Correct |
78 ms |
35636 KB |
Output is correct |
84 |
Correct |
79 ms |
35456 KB |
Output is correct |
85 |
Correct |
86 ms |
35584 KB |
Output is correct |
86 |
Correct |
81 ms |
35564 KB |
Output is correct |
87 |
Correct |
78 ms |
35588 KB |
Output is correct |
88 |
Correct |
78 ms |
35580 KB |
Output is correct |
89 |
Correct |
83 ms |
35580 KB |
Output is correct |
90 |
Correct |
79 ms |
35596 KB |
Output is correct |
91 |
Correct |
80 ms |
35652 KB |
Output is correct |
92 |
Correct |
84 ms |
35472 KB |
Output is correct |
93 |
Correct |
87 ms |
35580 KB |
Output is correct |
94 |
Correct |
86 ms |
35576 KB |
Output is correct |
95 |
Correct |
89 ms |
35572 KB |
Output is correct |
96 |
Correct |
85 ms |
35584 KB |
Output is correct |
97 |
Correct |
87 ms |
35576 KB |
Output is correct |
98 |
Correct |
86 ms |
35568 KB |
Output is correct |
99 |
Correct |
86 ms |
35792 KB |
Output is correct |
100 |
Correct |
91 ms |
35656 KB |
Output is correct |
101 |
Correct |
86 ms |
35536 KB |
Output is correct |
102 |
Correct |
89 ms |
35544 KB |
Output is correct |