| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1116776 |
2024-11-22T11:06:41 Z |
firewater |
Lamps (JOI19_lamps) |
C++14 |
|
68 ms |
51788 KB |
#include<bits/stdc++.h>
#define N 1001000
using namespace std;
int n,ans,a[N],b[N],f[N][5][2];
char s1[N],s2[N];
int main()
{
scanf("%d%s%s",&n,s1+1,s2+1);
for(int i=1;i<=n;++i)
a[i]=s2[i]-'0'+1,b[i]=(s1[i]!=s2[i]);
memset(f,127/3,sizeof(f));
f[0][0][0]=0;
for(int i=1;i<=n;++i)
for(int j=0;j<=2;++j)
for(int k=0;k<=1;++k){
f[i][0][b[i]]=min(f[i][0][b[i]],f[i-1][j][k]+(b[i]&&(b[i]!=k)));
if(j){
f[i][j][k]=min(f[i][j][k],f[i-1][j][k]+(a[i]!=j&&a[i]!=a[i-1]));
f[i][j%2+1][!k]=min(f[i][j%2+1][!k],f[i-1][j][k]+(!k)+(a[i]==j&&a[i]==a[i-1]));
}
f[i][a[i]][k]=min(f[i][a[i]][k],f[i-1][j][k]+1);
}
ans=f[0][0][1];
for(int j=0;j<=2;++j)
for(int k=0;k<=1;++k)
ans=min(ans,f[n][j][k]);
printf("%d\n",ans);
return 0;
}
Compilation message
lamp.cpp: In function 'int main()':
lamp.cpp:8:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
8 | scanf("%d%s%s",&n,s1+1,s2+1);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
43344 KB |
Output is correct |
| 2 |
Correct |
7 ms |
43504 KB |
Output is correct |
| 3 |
Correct |
9 ms |
43344 KB |
Output is correct |
| 4 |
Correct |
10 ms |
43344 KB |
Output is correct |
| 5 |
Correct |
11 ms |
43344 KB |
Output is correct |
| 6 |
Correct |
12 ms |
43344 KB |
Output is correct |
| 7 |
Correct |
16 ms |
43464 KB |
Output is correct |
| 8 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 9 |
Correct |
19 ms |
43344 KB |
Output is correct |
| 10 |
Correct |
19 ms |
43380 KB |
Output is correct |
| 11 |
Correct |
24 ms |
43484 KB |
Output is correct |
| 12 |
Correct |
21 ms |
43344 KB |
Output is correct |
| 13 |
Correct |
17 ms |
43344 KB |
Output is correct |
| 14 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 15 |
Correct |
22 ms |
43344 KB |
Output is correct |
| 16 |
Correct |
21 ms |
43344 KB |
Output is correct |
| 17 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 18 |
Correct |
14 ms |
43344 KB |
Output is correct |
| 19 |
Correct |
15 ms |
43344 KB |
Output is correct |
| 20 |
Correct |
18 ms |
43512 KB |
Output is correct |
| 21 |
Correct |
18 ms |
43468 KB |
Output is correct |
| 22 |
Correct |
21 ms |
43408 KB |
Output is correct |
| 23 |
Correct |
24 ms |
43344 KB |
Output is correct |
| 24 |
Correct |
26 ms |
43336 KB |
Output is correct |
| 25 |
Correct |
20 ms |
43344 KB |
Output is correct |
| 26 |
Correct |
18 ms |
43512 KB |
Output is correct |
| 27 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 28 |
Correct |
16 ms |
43356 KB |
Output is correct |
| 29 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 30 |
Correct |
18 ms |
43456 KB |
Output is correct |
| 31 |
Correct |
19 ms |
43344 KB |
Output is correct |
| 32 |
Correct |
22 ms |
43344 KB |
Output is correct |
| 33 |
Correct |
20 ms |
43344 KB |
Output is correct |
| 34 |
Correct |
16 ms |
43344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
43344 KB |
Output is correct |
| 2 |
Correct |
7 ms |
43504 KB |
Output is correct |
| 3 |
Correct |
9 ms |
43344 KB |
Output is correct |
| 4 |
Correct |
10 ms |
43344 KB |
Output is correct |
| 5 |
Correct |
11 ms |
43344 KB |
Output is correct |
| 6 |
Correct |
12 ms |
43344 KB |
Output is correct |
| 7 |
Correct |
16 ms |
43464 KB |
Output is correct |
| 8 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 9 |
Correct |
19 ms |
43344 KB |
Output is correct |
| 10 |
Correct |
19 ms |
43380 KB |
Output is correct |
| 11 |
Correct |
24 ms |
43484 KB |
Output is correct |
| 12 |
Correct |
21 ms |
43344 KB |
Output is correct |
| 13 |
Correct |
17 ms |
43344 KB |
Output is correct |
| 14 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 15 |
Correct |
22 ms |
43344 KB |
Output is correct |
| 16 |
Correct |
21 ms |
43344 KB |
Output is correct |
| 17 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 18 |
Correct |
14 ms |
43344 KB |
Output is correct |
| 19 |
Correct |
15 ms |
43344 KB |
Output is correct |
| 20 |
Correct |
18 ms |
43512 KB |
Output is correct |
| 21 |
Correct |
18 ms |
43468 KB |
Output is correct |
| 22 |
Correct |
21 ms |
43408 KB |
Output is correct |
| 23 |
Correct |
24 ms |
43344 KB |
Output is correct |
| 24 |
Correct |
26 ms |
43336 KB |
Output is correct |
| 25 |
Correct |
20 ms |
43344 KB |
Output is correct |
| 26 |
Correct |
18 ms |
43512 KB |
Output is correct |
| 27 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 28 |
Correct |
16 ms |
43356 KB |
Output is correct |
| 29 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 30 |
Correct |
18 ms |
43456 KB |
Output is correct |
| 31 |
Correct |
19 ms |
43344 KB |
Output is correct |
| 32 |
Correct |
22 ms |
43344 KB |
Output is correct |
| 33 |
Correct |
20 ms |
43344 KB |
Output is correct |
| 34 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 35 |
Correct |
15 ms |
43344 KB |
Output is correct |
| 36 |
Correct |
15 ms |
43380 KB |
Output is correct |
| 37 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 38 |
Correct |
17 ms |
43308 KB |
Output is correct |
| 39 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 40 |
Correct |
16 ms |
43452 KB |
Output is correct |
| 41 |
Correct |
17 ms |
43344 KB |
Output is correct |
| 42 |
Correct |
19 ms |
43344 KB |
Output is correct |
| 43 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 44 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 45 |
Correct |
19 ms |
43336 KB |
Output is correct |
| 46 |
Correct |
14 ms |
43344 KB |
Output is correct |
| 47 |
Correct |
17 ms |
43344 KB |
Output is correct |
| 48 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 49 |
Correct |
17 ms |
43344 KB |
Output is correct |
| 50 |
Correct |
19 ms |
43344 KB |
Output is correct |
| 51 |
Correct |
22 ms |
43344 KB |
Output is correct |
| 52 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 53 |
Correct |
23 ms |
43344 KB |
Output is correct |
| 54 |
Correct |
23 ms |
43344 KB |
Output is correct |
| 55 |
Correct |
19 ms |
43452 KB |
Output is correct |
| 56 |
Correct |
19 ms |
43348 KB |
Output is correct |
| 57 |
Correct |
14 ms |
43372 KB |
Output is correct |
| 58 |
Correct |
24 ms |
43848 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
20 ms |
43344 KB |
Output is correct |
| 2 |
Correct |
19 ms |
43324 KB |
Output is correct |
| 3 |
Correct |
22 ms |
43360 KB |
Output is correct |
| 4 |
Correct |
20 ms |
43356 KB |
Output is correct |
| 5 |
Correct |
20 ms |
43356 KB |
Output is correct |
| 6 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 7 |
Correct |
53 ms |
49232 KB |
Output is correct |
| 8 |
Correct |
53 ms |
49232 KB |
Output is correct |
| 9 |
Correct |
57 ms |
49232 KB |
Output is correct |
| 10 |
Correct |
58 ms |
49244 KB |
Output is correct |
| 11 |
Correct |
55 ms |
49228 KB |
Output is correct |
| 12 |
Correct |
56 ms |
49188 KB |
Output is correct |
| 13 |
Correct |
61 ms |
49380 KB |
Output is correct |
| 14 |
Correct |
58 ms |
49232 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
43344 KB |
Output is correct |
| 2 |
Correct |
7 ms |
43504 KB |
Output is correct |
| 3 |
Correct |
9 ms |
43344 KB |
Output is correct |
| 4 |
Correct |
10 ms |
43344 KB |
Output is correct |
| 5 |
Correct |
11 ms |
43344 KB |
Output is correct |
| 6 |
Correct |
12 ms |
43344 KB |
Output is correct |
| 7 |
Correct |
16 ms |
43464 KB |
Output is correct |
| 8 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 9 |
Correct |
19 ms |
43344 KB |
Output is correct |
| 10 |
Correct |
19 ms |
43380 KB |
Output is correct |
| 11 |
Correct |
24 ms |
43484 KB |
Output is correct |
| 12 |
Correct |
21 ms |
43344 KB |
Output is correct |
| 13 |
Correct |
17 ms |
43344 KB |
Output is correct |
| 14 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 15 |
Correct |
22 ms |
43344 KB |
Output is correct |
| 16 |
Correct |
21 ms |
43344 KB |
Output is correct |
| 17 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 18 |
Correct |
14 ms |
43344 KB |
Output is correct |
| 19 |
Correct |
15 ms |
43344 KB |
Output is correct |
| 20 |
Correct |
18 ms |
43512 KB |
Output is correct |
| 21 |
Correct |
18 ms |
43468 KB |
Output is correct |
| 22 |
Correct |
21 ms |
43408 KB |
Output is correct |
| 23 |
Correct |
24 ms |
43344 KB |
Output is correct |
| 24 |
Correct |
26 ms |
43336 KB |
Output is correct |
| 25 |
Correct |
20 ms |
43344 KB |
Output is correct |
| 26 |
Correct |
18 ms |
43512 KB |
Output is correct |
| 27 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 28 |
Correct |
16 ms |
43356 KB |
Output is correct |
| 29 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 30 |
Correct |
18 ms |
43456 KB |
Output is correct |
| 31 |
Correct |
19 ms |
43344 KB |
Output is correct |
| 32 |
Correct |
22 ms |
43344 KB |
Output is correct |
| 33 |
Correct |
20 ms |
43344 KB |
Output is correct |
| 34 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 35 |
Correct |
15 ms |
43344 KB |
Output is correct |
| 36 |
Correct |
15 ms |
43380 KB |
Output is correct |
| 37 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 38 |
Correct |
17 ms |
43308 KB |
Output is correct |
| 39 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 40 |
Correct |
16 ms |
43452 KB |
Output is correct |
| 41 |
Correct |
17 ms |
43344 KB |
Output is correct |
| 42 |
Correct |
19 ms |
43344 KB |
Output is correct |
| 43 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 44 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 45 |
Correct |
19 ms |
43336 KB |
Output is correct |
| 46 |
Correct |
14 ms |
43344 KB |
Output is correct |
| 47 |
Correct |
17 ms |
43344 KB |
Output is correct |
| 48 |
Correct |
16 ms |
43344 KB |
Output is correct |
| 49 |
Correct |
17 ms |
43344 KB |
Output is correct |
| 50 |
Correct |
19 ms |
43344 KB |
Output is correct |
| 51 |
Correct |
22 ms |
43344 KB |
Output is correct |
| 52 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 53 |
Correct |
23 ms |
43344 KB |
Output is correct |
| 54 |
Correct |
23 ms |
43344 KB |
Output is correct |
| 55 |
Correct |
19 ms |
43452 KB |
Output is correct |
| 56 |
Correct |
19 ms |
43348 KB |
Output is correct |
| 57 |
Correct |
14 ms |
43372 KB |
Output is correct |
| 58 |
Correct |
24 ms |
43848 KB |
Output is correct |
| 59 |
Correct |
20 ms |
43344 KB |
Output is correct |
| 60 |
Correct |
19 ms |
43324 KB |
Output is correct |
| 61 |
Correct |
22 ms |
43360 KB |
Output is correct |
| 62 |
Correct |
20 ms |
43356 KB |
Output is correct |
| 63 |
Correct |
20 ms |
43356 KB |
Output is correct |
| 64 |
Correct |
18 ms |
43344 KB |
Output is correct |
| 65 |
Correct |
53 ms |
49232 KB |
Output is correct |
| 66 |
Correct |
53 ms |
49232 KB |
Output is correct |
| 67 |
Correct |
57 ms |
49232 KB |
Output is correct |
| 68 |
Correct |
58 ms |
49244 KB |
Output is correct |
| 69 |
Correct |
55 ms |
49228 KB |
Output is correct |
| 70 |
Correct |
56 ms |
49188 KB |
Output is correct |
| 71 |
Correct |
61 ms |
49380 KB |
Output is correct |
| 72 |
Correct |
58 ms |
49232 KB |
Output is correct |
| 73 |
Correct |
61 ms |
51156 KB |
Output is correct |
| 74 |
Correct |
61 ms |
51272 KB |
Output is correct |
| 75 |
Correct |
65 ms |
51244 KB |
Output is correct |
| 76 |
Correct |
63 ms |
51272 KB |
Output is correct |
| 77 |
Correct |
62 ms |
51280 KB |
Output is correct |
| 78 |
Correct |
54 ms |
51280 KB |
Output is correct |
| 79 |
Correct |
54 ms |
51360 KB |
Output is correct |
| 80 |
Correct |
56 ms |
51356 KB |
Output is correct |
| 81 |
Correct |
55 ms |
51272 KB |
Output is correct |
| 82 |
Correct |
52 ms |
51128 KB |
Output is correct |
| 83 |
Correct |
66 ms |
51280 KB |
Output is correct |
| 84 |
Correct |
68 ms |
51148 KB |
Output is correct |
| 85 |
Correct |
65 ms |
51252 KB |
Output is correct |
| 86 |
Correct |
60 ms |
51164 KB |
Output is correct |
| 87 |
Correct |
60 ms |
51164 KB |
Output is correct |
| 88 |
Correct |
61 ms |
51280 KB |
Output is correct |
| 89 |
Correct |
59 ms |
51108 KB |
Output is correct |
| 90 |
Correct |
57 ms |
51272 KB |
Output is correct |
| 91 |
Correct |
59 ms |
51152 KB |
Output is correct |
| 92 |
Correct |
58 ms |
51144 KB |
Output is correct |
| 93 |
Correct |
54 ms |
51272 KB |
Output is correct |
| 94 |
Correct |
63 ms |
51544 KB |
Output is correct |
| 95 |
Correct |
55 ms |
51280 KB |
Output is correct |
| 96 |
Correct |
58 ms |
51192 KB |
Output is correct |
| 97 |
Correct |
53 ms |
51272 KB |
Output is correct |
| 98 |
Correct |
62 ms |
51168 KB |
Output is correct |
| 99 |
Correct |
56 ms |
51280 KB |
Output is correct |
| 100 |
Correct |
52 ms |
51296 KB |
Output is correct |
| 101 |
Correct |
58 ms |
51788 KB |
Output is correct |
| 102 |
Correct |
57 ms |
51168 KB |
Output is correct |
