#include <iostream>
using namespace std;
int dp[4][4][1000005],tpt[2][1000005];
int main()
{
int n;
string a,b;
cin >> n >> a >> b;
for (int j=0;j<4;j++)
{
for (int k=0;k<4;k++)
dp[j][k][0]=1e9;
}
dp[3][3][0]=0;
tpt[0][0]=1e9;
tpt[1][0]=1e9;
for (int i=0;i<=n;i++)
{
int mn=min(tpt[0][i],tpt[1][i]),md[4];
for (int j=0;j<4;j++)
md[j]=1e9;
md[2]=min(md[2],mn);
md[0]=min(md[0],tpt[0][i]);
md[1]=min(md[1],tpt[1][i]);
for (int j=0;j<4;j++)
{
for (int k=0;k<4;k++)
{
dp[j][k][i+1]=1e9;
mn=min(mn,dp[j][k][i]);
md[j]=min(md[j],dp[j][k][i]);
md[k]=min(md[k],dp[j][k][i]);
}
}
if (i==n)
{
printf("%d",mn);
return 0;
}
if (a[i]==b[i])
dp[3][3][i+1]=mn;
else
dp[2][3][i+1]=min(mn+1,md[2]);
bool cur=b[i]-'0';
dp[!cur][2][i+1]=min(min(min(md[!cur]+1,md[2]+1),min(dp[!cur][2][i],mn+2)),tpt[!cur][i]);
dp[2][cur][i+1]=min(min(min(md[2]+1,md[cur]+1),min(dp[2][cur][i],mn+2)),tpt[cur][i]);
dp[cur][3][i+1]=min(md[cur],mn+1);
tpt[cur][i+1]=1e9;
tpt[!cur][i+1]=min(min(min(tpt[!cur][i],mn+3),min(md[2],md[!cur])+2),min(min(dp[2][!cur][i],dp[!cur][2][i]),tpt[cur][i])+1);
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
504 KB |
Output is correct |
4 |
Correct |
2 ms |
504 KB |
Output is correct |
5 |
Correct |
2 ms |
504 KB |
Output is correct |
6 |
Correct |
2 ms |
504 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
2 ms |
504 KB |
Output is correct |
9 |
Correct |
2 ms |
504 KB |
Output is correct |
10 |
Correct |
2 ms |
504 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
2 ms |
504 KB |
Output is correct |
13 |
Correct |
2 ms |
508 KB |
Output is correct |
14 |
Correct |
2 ms |
524 KB |
Output is correct |
15 |
Correct |
2 ms |
504 KB |
Output is correct |
16 |
Correct |
2 ms |
504 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
524 KB |
Output is correct |
19 |
Correct |
2 ms |
504 KB |
Output is correct |
20 |
Correct |
2 ms |
504 KB |
Output is correct |
21 |
Correct |
2 ms |
504 KB |
Output is correct |
22 |
Correct |
2 ms |
504 KB |
Output is correct |
23 |
Correct |
2 ms |
504 KB |
Output is correct |
24 |
Correct |
2 ms |
504 KB |
Output is correct |
25 |
Correct |
2 ms |
504 KB |
Output is correct |
26 |
Correct |
2 ms |
380 KB |
Output is correct |
27 |
Correct |
2 ms |
504 KB |
Output is correct |
28 |
Correct |
2 ms |
504 KB |
Output is correct |
29 |
Correct |
2 ms |
504 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
508 KB |
Output is correct |
32 |
Correct |
2 ms |
504 KB |
Output is correct |
33 |
Correct |
2 ms |
504 KB |
Output is correct |
34 |
Correct |
2 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
504 KB |
Output is correct |
4 |
Correct |
2 ms |
504 KB |
Output is correct |
5 |
Correct |
2 ms |
504 KB |
Output is correct |
6 |
Correct |
2 ms |
504 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
2 ms |
504 KB |
Output is correct |
9 |
Correct |
2 ms |
504 KB |
Output is correct |
10 |
Correct |
2 ms |
504 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
2 ms |
504 KB |
Output is correct |
13 |
Correct |
2 ms |
508 KB |
Output is correct |
14 |
Correct |
2 ms |
524 KB |
Output is correct |
15 |
Correct |
2 ms |
504 KB |
Output is correct |
16 |
Correct |
2 ms |
504 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
524 KB |
Output is correct |
19 |
Correct |
2 ms |
504 KB |
Output is correct |
20 |
Correct |
2 ms |
504 KB |
Output is correct |
21 |
Correct |
2 ms |
504 KB |
Output is correct |
22 |
Correct |
2 ms |
504 KB |
Output is correct |
23 |
Correct |
2 ms |
504 KB |
Output is correct |
24 |
Correct |
2 ms |
504 KB |
Output is correct |
25 |
Correct |
2 ms |
504 KB |
Output is correct |
26 |
Correct |
2 ms |
380 KB |
Output is correct |
27 |
Correct |
2 ms |
504 KB |
Output is correct |
28 |
Correct |
2 ms |
504 KB |
Output is correct |
29 |
Correct |
2 ms |
504 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
508 KB |
Output is correct |
32 |
Correct |
2 ms |
504 KB |
Output is correct |
33 |
Correct |
2 ms |
504 KB |
Output is correct |
34 |
Correct |
2 ms |
504 KB |
Output is correct |
35 |
Correct |
3 ms |
632 KB |
Output is correct |
36 |
Correct |
3 ms |
632 KB |
Output is correct |
37 |
Correct |
3 ms |
632 KB |
Output is correct |
38 |
Correct |
3 ms |
632 KB |
Output is correct |
39 |
Correct |
3 ms |
632 KB |
Output is correct |
40 |
Correct |
3 ms |
632 KB |
Output is correct |
41 |
Correct |
3 ms |
632 KB |
Output is correct |
42 |
Correct |
3 ms |
632 KB |
Output is correct |
43 |
Correct |
3 ms |
632 KB |
Output is correct |
44 |
Correct |
3 ms |
632 KB |
Output is correct |
45 |
Correct |
3 ms |
632 KB |
Output is correct |
46 |
Correct |
3 ms |
636 KB |
Output is correct |
47 |
Correct |
8 ms |
628 KB |
Output is correct |
48 |
Correct |
3 ms |
632 KB |
Output is correct |
49 |
Correct |
3 ms |
632 KB |
Output is correct |
50 |
Correct |
3 ms |
632 KB |
Output is correct |
51 |
Correct |
3 ms |
632 KB |
Output is correct |
52 |
Correct |
3 ms |
632 KB |
Output is correct |
53 |
Correct |
3 ms |
632 KB |
Output is correct |
54 |
Correct |
3 ms |
632 KB |
Output is correct |
55 |
Correct |
3 ms |
632 KB |
Output is correct |
56 |
Correct |
2 ms |
632 KB |
Output is correct |
57 |
Correct |
3 ms |
632 KB |
Output is correct |
58 |
Correct |
3 ms |
632 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
504 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
504 KB |
Output is correct |
4 |
Correct |
2 ms |
504 KB |
Output is correct |
5 |
Correct |
2 ms |
504 KB |
Output is correct |
6 |
Correct |
2 ms |
504 KB |
Output is correct |
7 |
Correct |
229 ms |
73316 KB |
Output is correct |
8 |
Correct |
227 ms |
73316 KB |
Output is correct |
9 |
Correct |
229 ms |
73168 KB |
Output is correct |
10 |
Correct |
228 ms |
73240 KB |
Output is correct |
11 |
Correct |
227 ms |
73364 KB |
Output is correct |
12 |
Correct |
231 ms |
73304 KB |
Output is correct |
13 |
Correct |
228 ms |
73328 KB |
Output is correct |
14 |
Correct |
228 ms |
73148 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
504 KB |
Output is correct |
4 |
Correct |
2 ms |
504 KB |
Output is correct |
5 |
Correct |
2 ms |
504 KB |
Output is correct |
6 |
Correct |
2 ms |
504 KB |
Output is correct |
7 |
Correct |
2 ms |
504 KB |
Output is correct |
8 |
Correct |
2 ms |
504 KB |
Output is correct |
9 |
Correct |
2 ms |
504 KB |
Output is correct |
10 |
Correct |
2 ms |
504 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
2 ms |
504 KB |
Output is correct |
13 |
Correct |
2 ms |
508 KB |
Output is correct |
14 |
Correct |
2 ms |
524 KB |
Output is correct |
15 |
Correct |
2 ms |
504 KB |
Output is correct |
16 |
Correct |
2 ms |
504 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
524 KB |
Output is correct |
19 |
Correct |
2 ms |
504 KB |
Output is correct |
20 |
Correct |
2 ms |
504 KB |
Output is correct |
21 |
Correct |
2 ms |
504 KB |
Output is correct |
22 |
Correct |
2 ms |
504 KB |
Output is correct |
23 |
Correct |
2 ms |
504 KB |
Output is correct |
24 |
Correct |
2 ms |
504 KB |
Output is correct |
25 |
Correct |
2 ms |
504 KB |
Output is correct |
26 |
Correct |
2 ms |
380 KB |
Output is correct |
27 |
Correct |
2 ms |
504 KB |
Output is correct |
28 |
Correct |
2 ms |
504 KB |
Output is correct |
29 |
Correct |
2 ms |
504 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
508 KB |
Output is correct |
32 |
Correct |
2 ms |
504 KB |
Output is correct |
33 |
Correct |
2 ms |
504 KB |
Output is correct |
34 |
Correct |
2 ms |
504 KB |
Output is correct |
35 |
Correct |
3 ms |
632 KB |
Output is correct |
36 |
Correct |
3 ms |
632 KB |
Output is correct |
37 |
Correct |
3 ms |
632 KB |
Output is correct |
38 |
Correct |
3 ms |
632 KB |
Output is correct |
39 |
Correct |
3 ms |
632 KB |
Output is correct |
40 |
Correct |
3 ms |
632 KB |
Output is correct |
41 |
Correct |
3 ms |
632 KB |
Output is correct |
42 |
Correct |
3 ms |
632 KB |
Output is correct |
43 |
Correct |
3 ms |
632 KB |
Output is correct |
44 |
Correct |
3 ms |
632 KB |
Output is correct |
45 |
Correct |
3 ms |
632 KB |
Output is correct |
46 |
Correct |
3 ms |
636 KB |
Output is correct |
47 |
Correct |
8 ms |
628 KB |
Output is correct |
48 |
Correct |
3 ms |
632 KB |
Output is correct |
49 |
Correct |
3 ms |
632 KB |
Output is correct |
50 |
Correct |
3 ms |
632 KB |
Output is correct |
51 |
Correct |
3 ms |
632 KB |
Output is correct |
52 |
Correct |
3 ms |
632 KB |
Output is correct |
53 |
Correct |
3 ms |
632 KB |
Output is correct |
54 |
Correct |
3 ms |
632 KB |
Output is correct |
55 |
Correct |
3 ms |
632 KB |
Output is correct |
56 |
Correct |
2 ms |
632 KB |
Output is correct |
57 |
Correct |
3 ms |
632 KB |
Output is correct |
58 |
Correct |
3 ms |
632 KB |
Output is correct |
59 |
Correct |
2 ms |
504 KB |
Output is correct |
60 |
Correct |
2 ms |
384 KB |
Output is correct |
61 |
Correct |
3 ms |
504 KB |
Output is correct |
62 |
Correct |
2 ms |
504 KB |
Output is correct |
63 |
Correct |
2 ms |
504 KB |
Output is correct |
64 |
Correct |
2 ms |
504 KB |
Output is correct |
65 |
Correct |
229 ms |
73316 KB |
Output is correct |
66 |
Correct |
227 ms |
73316 KB |
Output is correct |
67 |
Correct |
229 ms |
73168 KB |
Output is correct |
68 |
Correct |
228 ms |
73240 KB |
Output is correct |
69 |
Correct |
227 ms |
73364 KB |
Output is correct |
70 |
Correct |
231 ms |
73304 KB |
Output is correct |
71 |
Correct |
228 ms |
73328 KB |
Output is correct |
72 |
Correct |
228 ms |
73148 KB |
Output is correct |
73 |
Correct |
233 ms |
74972 KB |
Output is correct |
74 |
Correct |
234 ms |
74820 KB |
Output is correct |
75 |
Correct |
228 ms |
74852 KB |
Output is correct |
76 |
Correct |
228 ms |
74856 KB |
Output is correct |
77 |
Correct |
228 ms |
74980 KB |
Output is correct |
78 |
Correct |
229 ms |
74812 KB |
Output is correct |
79 |
Correct |
227 ms |
74852 KB |
Output is correct |
80 |
Correct |
228 ms |
74864 KB |
Output is correct |
81 |
Correct |
228 ms |
74800 KB |
Output is correct |
82 |
Correct |
228 ms |
74868 KB |
Output is correct |
83 |
Correct |
240 ms |
74852 KB |
Output is correct |
84 |
Correct |
240 ms |
74908 KB |
Output is correct |
85 |
Correct |
235 ms |
74980 KB |
Output is correct |
86 |
Correct |
235 ms |
74848 KB |
Output is correct |
87 |
Correct |
235 ms |
74784 KB |
Output is correct |
88 |
Correct |
235 ms |
74980 KB |
Output is correct |
89 |
Correct |
235 ms |
74856 KB |
Output is correct |
90 |
Correct |
235 ms |
74980 KB |
Output is correct |
91 |
Correct |
241 ms |
74816 KB |
Output is correct |
92 |
Correct |
243 ms |
74768 KB |
Output is correct |
93 |
Correct |
243 ms |
74988 KB |
Output is correct |
94 |
Correct |
243 ms |
74804 KB |
Output is correct |
95 |
Correct |
247 ms |
74852 KB |
Output is correct |
96 |
Correct |
244 ms |
74980 KB |
Output is correct |
97 |
Correct |
247 ms |
75080 KB |
Output is correct |
98 |
Correct |
245 ms |
75064 KB |
Output is correct |
99 |
Correct |
244 ms |
74852 KB |
Output is correct |
100 |
Correct |
248 ms |
74836 KB |
Output is correct |
101 |
Correct |
247 ms |
74804 KB |
Output is correct |
102 |
Correct |
243 ms |
74980 KB |
Output is correct |