| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 384430 |
2021-04-01T16:14:34 Z |
ogibogi2004 |
Lamps (JOI19_lamps) |
C++14 |
|
209 ms |
41600 KB |
#include<bits/stdc++.h>
using namespace std;
const int MAXN=1e6+6;
int dp[MAXN][2][2][2];
int a[MAXN],b[MAXN];
int main()
{
int n;
cin>>n;
for(int i=1;i<=n;i++)
{
char c;
cin>>c;
a[i]=c-'0';
}
for(int i=1;i<=n;i++)
{
char c;
cin>>c;
b[i]=c-'0';
}
for(int i=0;i<MAXN;i++)
{
for(int i1=0;i1<2;i1++)
for(int i2=0;i2<2;i2++)
for(int i3=0;i3<2;i3++)
dp[i][i1][i2][i3]=MAXN+3;
}
dp[0][0][0][0]=0;
for(int i=1;i<=n;i++)
{
for(int i1=0;i1<2;i1++)
for(int i2=0;i2<2;i2++)
for(int i3=0;i3<2;i3++)
{
int a1=a[i];
if(i1)a1=1-a1;
if(i2)a1=0;
if(i3)a1=1;
if(a1==b[i])
{
for(int j1=0;j1<2;j1++)
for(int j2=0;j2<2;j2++)
for(int j3=0;j3<2;j3++)
{
dp[i][i1][i2][i3]=min(dp[i][i1][i2][i3],dp[i-1][j1][j2][j3]+(i1==1&&j1==0)+(i2==1&&j2==0)+(i3==1&&j3==0));
}
}
}
/*cout<<i<<":\n";
for(int i1=0;i1<2;i1++)
for(int i2=0;i2<2;i2++)
for(int i3=0;i3<2;i3++)
{
cout<<i1<<" "<<i2<<" "<<i3<<" "<<dp[i][i1][i2][i3]<<endl;
}*/
}
int ans=MAXN;
for(int i1=0;i1<2;i1++)
for(int i2=0;i2<2;i2++)
for(int i3=0;i3<2;i3++)
{
ans=min(ans,dp[n][i1][i2][i3]);
}
cout<<ans<<endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 2 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 3 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 4 |
Correct |
22 ms |
31596 KB |
Output is correct |
| 5 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 6 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 7 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 8 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 9 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 10 |
Correct |
21 ms |
31724 KB |
Output is correct |
| 11 |
Correct |
21 ms |
31596 KB |
Output is correct |
| 12 |
Correct |
21 ms |
31596 KB |
Output is correct |
| 13 |
Correct |
23 ms |
31596 KB |
Output is correct |
| 14 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 15 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 16 |
Incorrect |
20 ms |
31596 KB |
Output isn't correct |
| 17 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 2 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 3 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 4 |
Correct |
22 ms |
31596 KB |
Output is correct |
| 5 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 6 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 7 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 8 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 9 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 10 |
Correct |
21 ms |
31724 KB |
Output is correct |
| 11 |
Correct |
21 ms |
31596 KB |
Output is correct |
| 12 |
Correct |
21 ms |
31596 KB |
Output is correct |
| 13 |
Correct |
23 ms |
31596 KB |
Output is correct |
| 14 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 15 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 16 |
Incorrect |
20 ms |
31596 KB |
Output isn't correct |
| 17 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
21 ms |
31596 KB |
Output is correct |
| 2 |
Correct |
19 ms |
31596 KB |
Output is correct |
| 3 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 4 |
Correct |
20 ms |
31724 KB |
Output is correct |
| 5 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 6 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 7 |
Correct |
178 ms |
40428 KB |
Output is correct |
| 8 |
Correct |
194 ms |
41452 KB |
Output is correct |
| 9 |
Correct |
193 ms |
41408 KB |
Output is correct |
| 10 |
Correct |
188 ms |
41600 KB |
Output is correct |
| 11 |
Correct |
190 ms |
41468 KB |
Output is correct |
| 12 |
Correct |
195 ms |
41452 KB |
Output is correct |
| 13 |
Correct |
188 ms |
41452 KB |
Output is correct |
| 14 |
Correct |
209 ms |
41580 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 2 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 3 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 4 |
Correct |
22 ms |
31596 KB |
Output is correct |
| 5 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 6 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 7 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 8 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 9 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 10 |
Correct |
21 ms |
31724 KB |
Output is correct |
| 11 |
Correct |
21 ms |
31596 KB |
Output is correct |
| 12 |
Correct |
21 ms |
31596 KB |
Output is correct |
| 13 |
Correct |
23 ms |
31596 KB |
Output is correct |
| 14 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 15 |
Correct |
20 ms |
31596 KB |
Output is correct |
| 16 |
Incorrect |
20 ms |
31596 KB |
Output isn't correct |
| 17 |
Halted |
0 ms |
0 KB |
- |
