// Code by Parsa Eslami
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define FORR(i,a,b) for(int i=a;i>=b;i--)
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define all(x) x.begin(),x.end()
#define SZ(x) ((int)x.size())
#define bit(i,j) ((j>>i)&1)
#define pb push_back
#define lc 2*id
#define rc 2*id+1
#define dmid int mid=(r+l)/2
#define err(x) cerr<#x<<" : "<<x<<'\n'
using namespace std;
int get(){
int x; cin>>x; return x;
}
int32_t main(){
iostream::sync_with_stdio(0); cin.tie(0);
int n=get();
bool a[n+1]={}; bool b[n+1];
string s; cin>>s; FOR(i,0,n-1) a[i+1]=s[i]-'0';
cin>>s; FOR(i,0,n-1) b[i+1]=s[i]-'0';
int val[2][3][2];
FOR(B,0,1) FOR(i,0,2) FOR(j,0,1){
if(i==2) val[B][i][j]=B^j;
else val[B][i][j]=i^j;
}
int dis[3][2][3][2];
FOR(i0,0,2) FOR(j0,0,1) FOR(i1,0,2) FOR(j1,0,1){
dis[i0][j0][i1][j1]=0;
if(j1==1&&j0==0) dis[i0][j0][i1][j1]++;
if(i1!=2) dis[i0][j0][i1][j1]+=(i0!=i1);
}
int dp[n+1][3][2];
FOR(w,0,n) FOR(i,0,2) FOR(j,0,1) dp[w][i][j]=1e9;
dp[0][2][0]=0;
FOR(w,1,n) FOR(i,0,2) FOR(j,0,1){
if(val[a[w]][i][j]!=b[w]) continue;
FOR(i0,0,2) FOR(j0,0,1) minm(dp[w][i][j],dp[w-1][i0][j0]+dis[i0][j0][i][j]);
}
FOR(i,0,2) FOR(j,0,1) minm(dp[n][0][0],dp[n][i][j]);
cout<<dp[n][0][0]<<'\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
316 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
320 KB |
Output is correct |
12 |
Correct |
0 ms |
316 KB |
Output is correct |
13 |
Correct |
0 ms |
320 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
320 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
320 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
324 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
324 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
316 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
320 KB |
Output is correct |
12 |
Correct |
0 ms |
316 KB |
Output is correct |
13 |
Correct |
0 ms |
320 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
320 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
320 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
324 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
324 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
1 ms |
320 KB |
Output is correct |
37 |
Correct |
1 ms |
328 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
0 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
41 |
Correct |
0 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
320 KB |
Output is correct |
43 |
Correct |
1 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
328 KB |
Output is correct |
45 |
Correct |
1 ms |
320 KB |
Output is correct |
46 |
Correct |
1 ms |
340 KB |
Output is correct |
47 |
Correct |
1 ms |
324 KB |
Output is correct |
48 |
Correct |
1 ms |
340 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
1 ms |
340 KB |
Output is correct |
51 |
Correct |
1 ms |
340 KB |
Output is correct |
52 |
Correct |
1 ms |
340 KB |
Output is correct |
53 |
Correct |
1 ms |
340 KB |
Output is correct |
54 |
Correct |
0 ms |
340 KB |
Output is correct |
55 |
Correct |
1 ms |
340 KB |
Output is correct |
56 |
Correct |
1 ms |
340 KB |
Output is correct |
57 |
Correct |
1 ms |
320 KB |
Output is correct |
58 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
316 KB |
Output is correct |
7 |
Correct |
42 ms |
28708 KB |
Output is correct |
8 |
Correct |
38 ms |
28772 KB |
Output is correct |
9 |
Correct |
39 ms |
28784 KB |
Output is correct |
10 |
Correct |
39 ms |
28704 KB |
Output is correct |
11 |
Correct |
38 ms |
28732 KB |
Output is correct |
12 |
Correct |
39 ms |
28740 KB |
Output is correct |
13 |
Correct |
40 ms |
28760 KB |
Output is correct |
14 |
Correct |
39 ms |
28728 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
316 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
320 KB |
Output is correct |
12 |
Correct |
0 ms |
316 KB |
Output is correct |
13 |
Correct |
0 ms |
320 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
320 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
320 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
324 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
324 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
1 ms |
320 KB |
Output is correct |
37 |
Correct |
1 ms |
328 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
0 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
41 |
Correct |
0 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
320 KB |
Output is correct |
43 |
Correct |
1 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
328 KB |
Output is correct |
45 |
Correct |
1 ms |
320 KB |
Output is correct |
46 |
Correct |
1 ms |
340 KB |
Output is correct |
47 |
Correct |
1 ms |
324 KB |
Output is correct |
48 |
Correct |
1 ms |
340 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
1 ms |
340 KB |
Output is correct |
51 |
Correct |
1 ms |
340 KB |
Output is correct |
52 |
Correct |
1 ms |
340 KB |
Output is correct |
53 |
Correct |
1 ms |
340 KB |
Output is correct |
54 |
Correct |
0 ms |
340 KB |
Output is correct |
55 |
Correct |
1 ms |
340 KB |
Output is correct |
56 |
Correct |
1 ms |
340 KB |
Output is correct |
57 |
Correct |
1 ms |
320 KB |
Output is correct |
58 |
Correct |
1 ms |
340 KB |
Output is correct |
59 |
Correct |
0 ms |
212 KB |
Output is correct |
60 |
Correct |
0 ms |
212 KB |
Output is correct |
61 |
Correct |
1 ms |
212 KB |
Output is correct |
62 |
Correct |
1 ms |
212 KB |
Output is correct |
63 |
Correct |
1 ms |
212 KB |
Output is correct |
64 |
Correct |
0 ms |
316 KB |
Output is correct |
65 |
Correct |
42 ms |
28708 KB |
Output is correct |
66 |
Correct |
38 ms |
28772 KB |
Output is correct |
67 |
Correct |
39 ms |
28784 KB |
Output is correct |
68 |
Correct |
39 ms |
28704 KB |
Output is correct |
69 |
Correct |
38 ms |
28732 KB |
Output is correct |
70 |
Correct |
39 ms |
28740 KB |
Output is correct |
71 |
Correct |
40 ms |
28760 KB |
Output is correct |
72 |
Correct |
39 ms |
28728 KB |
Output is correct |
73 |
Correct |
38 ms |
28740 KB |
Output is correct |
74 |
Correct |
38 ms |
28772 KB |
Output is correct |
75 |
Correct |
38 ms |
28728 KB |
Output is correct |
76 |
Correct |
40 ms |
28732 KB |
Output is correct |
77 |
Correct |
38 ms |
28764 KB |
Output is correct |
78 |
Correct |
37 ms |
28748 KB |
Output is correct |
79 |
Correct |
42 ms |
28776 KB |
Output is correct |
80 |
Correct |
41 ms |
28904 KB |
Output is correct |
81 |
Correct |
45 ms |
28712 KB |
Output is correct |
82 |
Correct |
43 ms |
28748 KB |
Output is correct |
83 |
Correct |
43 ms |
28696 KB |
Output is correct |
84 |
Correct |
41 ms |
28768 KB |
Output is correct |
85 |
Correct |
46 ms |
28728 KB |
Output is correct |
86 |
Correct |
41 ms |
28704 KB |
Output is correct |
87 |
Correct |
45 ms |
28776 KB |
Output is correct |
88 |
Correct |
48 ms |
28780 KB |
Output is correct |
89 |
Correct |
42 ms |
28712 KB |
Output is correct |
90 |
Correct |
47 ms |
28780 KB |
Output is correct |
91 |
Correct |
44 ms |
28772 KB |
Output is correct |
92 |
Correct |
46 ms |
28708 KB |
Output is correct |
93 |
Correct |
47 ms |
28716 KB |
Output is correct |
94 |
Correct |
46 ms |
28756 KB |
Output is correct |
95 |
Correct |
47 ms |
28776 KB |
Output is correct |
96 |
Correct |
50 ms |
28860 KB |
Output is correct |
97 |
Correct |
46 ms |
28716 KB |
Output is correct |
98 |
Correct |
47 ms |
28732 KB |
Output is correct |
99 |
Correct |
46 ms |
28792 KB |
Output is correct |
100 |
Correct |
45 ms |
28776 KB |
Output is correct |
101 |
Correct |
50 ms |
28744 KB |
Output is correct |
102 |
Correct |
47 ms |
28776 KB |
Output is correct |