#include<bits/stdc++.h>
using namespace std;
typedef long long int lld;
typedef pair<lld,lld> pii;
#define rep(i,a,b) for(int i=a;i<b;i++)
#define trav(a,v) for(auto a:v)
int DP[2000000][2][3];
int diff[2000000];
int zeros[2000000];
int ones[2000000];
string A,B;
int valid(int i, int j, int k){
if(k==0){
//cout<<(A[i]==B[i])<<endl;
return ((A[i]==B[i])+j)%2;
}
return ((B[i]==(k-1+'0'))+j)%2;
}
int main(){
int n;
cin>>n;
cin>>A>>B;
rep(i,0,n+1){
rep(j,0,2){
rep(k,0,3){
DP[i][j][k]=10000000;
}
}
}
DP[0][0][0]=0;
/*diff[0]=0;
zeros[0]=0;
ones[0]=0;
rep(i,0,n){
diff[i+1]=diff[i]+(A[i]==B[i]);
zeros[i+1]=zeros[i]+(B[i]=='0');
ones[i+1]=ones[i]+(B[i]=='1');
//cout<<diff[i+1]<<" "<<zeros[i+1]<<" "<<ones[i+1]<<endl;
}*/
//cout<<valid(0,1,0)<<endl;
rep(i,1,n+1){
rep(j,0,2){
rep(k,0,3){
if(valid(i-1,j,k)){
rep(l,0,2){
rep(m,0,3){
DP[i][j][k]=min(DP[i][j][k],DP[i-1][l][m]+((j==1)&&(l==0))+((k>0)&&(m!=k)));
}
}
}
}
}
}
int ans=100000000;
/*rep(i,0,n+1){
rep(j,0,2){
rep(k,0,3){
cout<<DP[i][j][k]<<" ";
}cout<<endl;
}cout<<endl;
}*/
rep(j,0,2){
rep(k,0,3)ans=min(ans,DP[n][j][k]);
}
cout<<ans<<endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
376 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 |
2 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 |
2 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
384 KB |
Output is correct |
16 |
Correct |
2 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 |
2 ms |
384 KB |
Output is correct |
23 |
Correct |
2 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
384 KB |
Output is correct |
25 |
Correct |
2 ms |
384 KB |
Output is correct |
26 |
Correct |
2 ms |
384 KB |
Output is correct |
27 |
Correct |
2 ms |
384 KB |
Output is correct |
28 |
Correct |
2 ms |
256 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 |
2 ms |
384 KB |
Output is correct |
34 |
Correct |
3 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
376 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 |
2 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 |
2 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
384 KB |
Output is correct |
16 |
Correct |
2 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 |
2 ms |
384 KB |
Output is correct |
23 |
Correct |
2 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
384 KB |
Output is correct |
25 |
Correct |
2 ms |
384 KB |
Output is correct |
26 |
Correct |
2 ms |
384 KB |
Output is correct |
27 |
Correct |
2 ms |
384 KB |
Output is correct |
28 |
Correct |
2 ms |
256 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 |
2 ms |
384 KB |
Output is correct |
34 |
Correct |
3 ms |
384 KB |
Output is correct |
35 |
Correct |
3 ms |
384 KB |
Output is correct |
36 |
Correct |
2 ms |
384 KB |
Output is correct |
37 |
Correct |
2 ms |
384 KB |
Output is correct |
38 |
Correct |
2 ms |
380 KB |
Output is correct |
39 |
Correct |
2 ms |
384 KB |
Output is correct |
40 |
Correct |
2 ms |
384 KB |
Output is correct |
41 |
Correct |
2 ms |
384 KB |
Output is correct |
42 |
Correct |
2 ms |
384 KB |
Output is correct |
43 |
Correct |
2 ms |
384 KB |
Output is correct |
44 |
Correct |
2 ms |
384 KB |
Output is correct |
45 |
Correct |
2 ms |
384 KB |
Output is correct |
46 |
Correct |
2 ms |
384 KB |
Output is correct |
47 |
Correct |
2 ms |
384 KB |
Output is correct |
48 |
Correct |
2 ms |
384 KB |
Output is correct |
49 |
Correct |
3 ms |
384 KB |
Output is correct |
50 |
Correct |
2 ms |
384 KB |
Output is correct |
51 |
Correct |
2 ms |
384 KB |
Output is correct |
52 |
Correct |
2 ms |
384 KB |
Output is correct |
53 |
Correct |
2 ms |
384 KB |
Output is correct |
54 |
Correct |
2 ms |
384 KB |
Output is correct |
55 |
Correct |
2 ms |
384 KB |
Output is correct |
56 |
Correct |
2 ms |
384 KB |
Output is correct |
57 |
Correct |
3 ms |
512 KB |
Output is correct |
58 |
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 |
122 ms |
27880 KB |
Output is correct |
8 |
Correct |
122 ms |
28008 KB |
Output is correct |
9 |
Correct |
125 ms |
28080 KB |
Output is correct |
10 |
Correct |
121 ms |
27872 KB |
Output is correct |
11 |
Correct |
121 ms |
27880 KB |
Output is correct |
12 |
Correct |
121 ms |
28000 KB |
Output is correct |
13 |
Correct |
122 ms |
27884 KB |
Output is correct |
14 |
Correct |
122 ms |
28068 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
376 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 |
2 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 |
2 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
384 KB |
Output is correct |
16 |
Correct |
2 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 |
2 ms |
384 KB |
Output is correct |
23 |
Correct |
2 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
384 KB |
Output is correct |
25 |
Correct |
2 ms |
384 KB |
Output is correct |
26 |
Correct |
2 ms |
384 KB |
Output is correct |
27 |
Correct |
2 ms |
384 KB |
Output is correct |
28 |
Correct |
2 ms |
256 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 |
2 ms |
384 KB |
Output is correct |
34 |
Correct |
3 ms |
384 KB |
Output is correct |
35 |
Correct |
3 ms |
384 KB |
Output is correct |
36 |
Correct |
2 ms |
384 KB |
Output is correct |
37 |
Correct |
2 ms |
384 KB |
Output is correct |
38 |
Correct |
2 ms |
380 KB |
Output is correct |
39 |
Correct |
2 ms |
384 KB |
Output is correct |
40 |
Correct |
2 ms |
384 KB |
Output is correct |
41 |
Correct |
2 ms |
384 KB |
Output is correct |
42 |
Correct |
2 ms |
384 KB |
Output is correct |
43 |
Correct |
2 ms |
384 KB |
Output is correct |
44 |
Correct |
2 ms |
384 KB |
Output is correct |
45 |
Correct |
2 ms |
384 KB |
Output is correct |
46 |
Correct |
2 ms |
384 KB |
Output is correct |
47 |
Correct |
2 ms |
384 KB |
Output is correct |
48 |
Correct |
2 ms |
384 KB |
Output is correct |
49 |
Correct |
3 ms |
384 KB |
Output is correct |
50 |
Correct |
2 ms |
384 KB |
Output is correct |
51 |
Correct |
2 ms |
384 KB |
Output is correct |
52 |
Correct |
2 ms |
384 KB |
Output is correct |
53 |
Correct |
2 ms |
384 KB |
Output is correct |
54 |
Correct |
2 ms |
384 KB |
Output is correct |
55 |
Correct |
2 ms |
384 KB |
Output is correct |
56 |
Correct |
2 ms |
384 KB |
Output is correct |
57 |
Correct |
3 ms |
512 KB |
Output is correct |
58 |
Correct |
2 ms |
384 KB |
Output is correct |
59 |
Correct |
2 ms |
384 KB |
Output is correct |
60 |
Correct |
2 ms |
384 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 |
122 ms |
27880 KB |
Output is correct |
66 |
Correct |
122 ms |
28008 KB |
Output is correct |
67 |
Correct |
125 ms |
28080 KB |
Output is correct |
68 |
Correct |
121 ms |
27872 KB |
Output is correct |
69 |
Correct |
121 ms |
27880 KB |
Output is correct |
70 |
Correct |
121 ms |
28000 KB |
Output is correct |
71 |
Correct |
122 ms |
27884 KB |
Output is correct |
72 |
Correct |
122 ms |
28068 KB |
Output is correct |
73 |
Correct |
126 ms |
27880 KB |
Output is correct |
74 |
Correct |
125 ms |
27876 KB |
Output is correct |
75 |
Correct |
126 ms |
28136 KB |
Output is correct |
76 |
Correct |
125 ms |
28012 KB |
Output is correct |
77 |
Correct |
124 ms |
27884 KB |
Output is correct |
78 |
Correct |
133 ms |
27928 KB |
Output is correct |
79 |
Correct |
126 ms |
28048 KB |
Output is correct |
80 |
Correct |
127 ms |
27940 KB |
Output is correct |
81 |
Correct |
130 ms |
27936 KB |
Output is correct |
82 |
Correct |
127 ms |
27988 KB |
Output is correct |
83 |
Correct |
131 ms |
27816 KB |
Output is correct |
84 |
Correct |
132 ms |
27876 KB |
Output is correct |
85 |
Correct |
131 ms |
27960 KB |
Output is correct |
86 |
Correct |
141 ms |
28092 KB |
Output is correct |
87 |
Correct |
130 ms |
28008 KB |
Output is correct |
88 |
Correct |
138 ms |
28004 KB |
Output is correct |
89 |
Correct |
136 ms |
27828 KB |
Output is correct |
90 |
Correct |
139 ms |
28004 KB |
Output is correct |
91 |
Correct |
136 ms |
28068 KB |
Output is correct |
92 |
Correct |
135 ms |
28012 KB |
Output is correct |
93 |
Correct |
134 ms |
27876 KB |
Output is correct |
94 |
Correct |
153 ms |
27880 KB |
Output is correct |
95 |
Correct |
139 ms |
27888 KB |
Output is correct |
96 |
Correct |
137 ms |
27852 KB |
Output is correct |
97 |
Correct |
135 ms |
27880 KB |
Output is correct |
98 |
Correct |
140 ms |
27896 KB |
Output is correct |
99 |
Correct |
135 ms |
28056 KB |
Output is correct |
100 |
Correct |
135 ms |
27880 KB |
Output is correct |
101 |
Correct |
134 ms |
27880 KB |
Output is correct |
102 |
Correct |
136 ms |
27988 KB |
Output is correct |