#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][10];
int a[maxn],b[maxn];
vector<int> state[10]={{0},{1},{2},{3},{1,2},{1,3},{2,1},{2,3},{3,1},{3,2}};
int nxt[2][10];
int cost[10][10];
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,0,1){
for1(j,0,9){
int ni=i;
for(auto v:state[j]){
if (v==0)continue;
if (v==1)ni=1;
if (v==2)ni=0;
if (v==3)ni=1-ni;
}
nxt[i][j]=ni;
}
}
for1(i,0,9){
for1(j,0,9){
if (i==0)cost[i][j]=sz(state[j]);
if (j==0)cost[i][j]=0;
if (i!=0&&j!=0&&i!=j){
if (sz(state[i])==1&&sz(state[j])==1){
cost[i][j]=1;
}
if (sz(state[i])==1&&sz(state[j])==2){
bool fl=1;
for (auto v:state[j]){
if (v==state[i][0]){
fl=0;
break;
}
}
cost[i][j]=fl+1;
}
if (sz(state[i])==2&&sz(state[j])==1){
bool fl=1;
for (auto v:state[i]){
if (v==state[j][0]){
fl=0;
break;
}
}
cost[i][j]=fl;
}
if (sz(state[i])==2&&sz(state[j])==2){
cost[i][j]=1;
}
}
}
}
for1(i,0,n){
for1(j,0,9){
f[i][j]=n+1;
}
}
f[0][0]=0;
for1(i,1,n){
for1(j,0,9){
if (nxt[a[i]][j]==b[i]){
for1(k,0,9){
f[i][j]=min(f[i][j],f[i-1][k]+cost[k][j]);
}
}
}
}
int ans=n+1;
for1(i,0,9)ans=min(ans,f[n][i]);
cout<<ans;
//for1(i,0,9)for1(j,0,9)cout<<i<<" "<<j<<" "<<cost[i][j]<<'\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4560 KB |
Output is correct |
2 |
Correct |
1 ms |
4440 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 |
4444 KB |
Output is correct |
8 |
Correct |
0 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 |
4444 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 |
4444 KB |
Output is correct |
20 |
Correct |
1 ms |
4444 KB |
Output is correct |
21 |
Correct |
1 ms |
4444 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 |
4564 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 |
4560 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4560 KB |
Output is correct |
2 |
Correct |
1 ms |
4440 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 |
4444 KB |
Output is correct |
8 |
Correct |
0 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 |
4444 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 |
4444 KB |
Output is correct |
20 |
Correct |
1 ms |
4444 KB |
Output is correct |
21 |
Correct |
1 ms |
4444 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 |
4564 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 |
4560 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 |
4444 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 |
4444 KB |
Output is correct |
43 |
Correct |
1 ms |
4444 KB |
Output is correct |
44 |
Correct |
1 ms |
4588 KB |
Output is correct |
45 |
Correct |
1 ms |
4444 KB |
Output is correct |
46 |
Correct |
1 ms |
4444 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 |
4444 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 |
2396 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 |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
63 ms |
44920 KB |
Output is correct |
8 |
Correct |
59 ms |
49160 KB |
Output is correct |
9 |
Correct |
60 ms |
49160 KB |
Output is correct |
10 |
Correct |
63 ms |
49372 KB |
Output is correct |
11 |
Correct |
58 ms |
49152 KB |
Output is correct |
12 |
Correct |
58 ms |
49148 KB |
Output is correct |
13 |
Correct |
59 ms |
49068 KB |
Output is correct |
14 |
Correct |
62 ms |
49232 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4560 KB |
Output is correct |
2 |
Correct |
1 ms |
4440 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 |
4444 KB |
Output is correct |
8 |
Correct |
0 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 |
4444 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 |
4444 KB |
Output is correct |
20 |
Correct |
1 ms |
4444 KB |
Output is correct |
21 |
Correct |
1 ms |
4444 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 |
4564 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 |
4560 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 |
4444 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 |
4444 KB |
Output is correct |
43 |
Correct |
1 ms |
4444 KB |
Output is correct |
44 |
Correct |
1 ms |
4588 KB |
Output is correct |
45 |
Correct |
1 ms |
4444 KB |
Output is correct |
46 |
Correct |
1 ms |
4444 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 |
4444 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 |
2396 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 |
2396 KB |
Output is correct |
64 |
Correct |
1 ms |
2396 KB |
Output is correct |
65 |
Correct |
63 ms |
44920 KB |
Output is correct |
66 |
Correct |
59 ms |
49160 KB |
Output is correct |
67 |
Correct |
60 ms |
49160 KB |
Output is correct |
68 |
Correct |
63 ms |
49372 KB |
Output is correct |
69 |
Correct |
58 ms |
49152 KB |
Output is correct |
70 |
Correct |
58 ms |
49148 KB |
Output is correct |
71 |
Correct |
59 ms |
49068 KB |
Output is correct |
72 |
Correct |
62 ms |
49232 KB |
Output is correct |
73 |
Correct |
60 ms |
48896 KB |
Output is correct |
74 |
Correct |
66 ms |
51200 KB |
Output is correct |
75 |
Correct |
58 ms |
51208 KB |
Output is correct |
76 |
Correct |
60 ms |
51196 KB |
Output is correct |
77 |
Correct |
61 ms |
51500 KB |
Output is correct |
78 |
Correct |
60 ms |
51200 KB |
Output is correct |
79 |
Correct |
62 ms |
51200 KB |
Output is correct |
80 |
Correct |
59 ms |
51208 KB |
Output is correct |
81 |
Correct |
59 ms |
51204 KB |
Output is correct |
82 |
Correct |
63 ms |
51208 KB |
Output is correct |
83 |
Correct |
67 ms |
51200 KB |
Output is correct |
84 |
Correct |
66 ms |
51160 KB |
Output is correct |
85 |
Correct |
71 ms |
51200 KB |
Output is correct |
86 |
Correct |
67 ms |
51196 KB |
Output is correct |
87 |
Correct |
67 ms |
51208 KB |
Output is correct |
88 |
Correct |
67 ms |
51196 KB |
Output is correct |
89 |
Correct |
72 ms |
51116 KB |
Output is correct |
90 |
Correct |
69 ms |
51200 KB |
Output is correct |
91 |
Correct |
73 ms |
51120 KB |
Output is correct |
92 |
Correct |
72 ms |
51160 KB |
Output is correct |
93 |
Correct |
85 ms |
51196 KB |
Output is correct |
94 |
Correct |
74 ms |
51196 KB |
Output is correct |
95 |
Correct |
75 ms |
51344 KB |
Output is correct |
96 |
Correct |
76 ms |
51200 KB |
Output is correct |
97 |
Correct |
74 ms |
51160 KB |
Output is correct |
98 |
Correct |
73 ms |
51196 KB |
Output is correct |
99 |
Correct |
74 ms |
51220 KB |
Output is correct |
100 |
Correct |
79 ms |
51200 KB |
Output is correct |
101 |
Correct |
74 ms |
51192 KB |
Output is correct |
102 |
Correct |
78 ms |
51196 KB |
Output is correct |