oj.uz

Submission #126425

# Submission time Handle Problem Language Result Execution time Memory
126425 2019-07-07T17:22:08 Z TadijaSebez Lamps (JOI19_lamps) C++11
100 / 100
 452 ms 43644 KB 
#include <bits/stdc++.h>
using namespace std;
const int N=1000050;
const int inf=1e9+7;
int dp[N][2][5];
char a[N],b[N];
int main()
{
	int n;
	scanf("%i %s %s",&n,a+1,b+1);
	for(int i=0;i<2;i++) for(int j=0;j<5;j++) dp[0][i][j]=inf;
	dp[0][0][0]=0;
	for(int i=1;i<=n;i++)
	{
        for(int j=0;j<2;j++)
        {
			for(int k=0;k<5;k++)
			{
				int mask=min(k,3)+j*4;
				int now=a[i]-'0';
				if(k>0 && (k&1)) now=0;
				else if(k>0) now=1;
				if(j) now^=1;
				dp[i][j][k]=inf;
				if(now==b[i]-'0')
				{
					for(int j2=0;j2<2;j2++)
					{
						for(int k2=0;k2<5;k2++)
						{
							if(k>=3 && k2>=3 && k!=k2) continue;
							int mask2=min(k2,3)+j2*4;
							int dif=__builtin_popcount(mask^(mask&mask2));
							dp[i][j][k]=min(dp[i][j][k],dp[i-1][j2][k2]+dif);
						}
					}
				}
			}
        }
	}
	int ans=inf;
	for(int j=0;j<2;j++) for(int k=0;k<5;k++) ans=min(ans,dp[n][j][k]);
	printf("%i\n",ans);
	return 0;
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i %s %s",&n,a+1,b+1);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 252 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 372 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 252 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 372 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 3 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 3 ms 376 KB Output is correct
38 Correct 3 ms 376 KB Output is correct
39 Correct 3 ms 376 KB Output is correct
40 Correct 3 ms 376 KB Output is correct
41 Correct 3 ms 504 KB Output is correct
42 Correct 3 ms 376 KB Output is correct
43 Correct 3 ms 376 KB Output is correct
44 Correct 3 ms 504 KB Output is correct
45 Correct 3 ms 376 KB Output is correct
46 Correct 3 ms 376 KB Output is correct
47 Correct 3 ms 376 KB Output is correct
48 Correct 3 ms 376 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 3 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct
53 Correct 3 ms 376 KB Output is correct
54 Correct 2 ms 376 KB Output is correct
55 Correct 3 ms 376 KB Output is correct
56 Correct 3 ms 504 KB Output is correct
57 Correct 3 ms 376 KB Output is correct
58 Correct 3 ms 376 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 342 ms 41436 KB Output is correct
8 Correct 341 ms 41472 KB Output is correct
9 Correct 343 ms 41464 KB Output is correct
10 Correct 343 ms 41464 KB Output is correct
11 Correct 342 ms 41452 KB Output is correct
12 Correct 348 ms 41336 KB Output is correct
13 Correct 346 ms 41432 KB Output is correct
14 Correct 348 ms 41464 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 252 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 372 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 3 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 3 ms 376 KB Output is correct
38 Correct 3 ms 376 KB Output is correct
39 Correct 3 ms 376 KB Output is correct
40 Correct 3 ms 376 KB Output is correct
41 Correct 3 ms 504 KB Output is correct
42 Correct 3 ms 376 KB Output is correct
43 Correct 3 ms 376 KB Output is correct
44 Correct 3 ms 504 KB Output is correct
45 Correct 3 ms 376 KB Output is correct
46 Correct 3 ms 376 KB Output is correct
47 Correct 3 ms 376 KB Output is correct
48 Correct 3 ms 376 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 3 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct
53 Correct 3 ms 376 KB Output is correct
54 Correct 2 ms 376 KB Output is correct
55 Correct 3 ms 376 KB Output is correct
56 Correct 3 ms 504 KB Output is correct
57 Correct 3 ms 376 KB Output is correct
58 Correct 3 ms 376 KB Output is correct
59 Correct 2 ms 256 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 2 ms 256 KB Output is correct
62 Correct 2 ms 256 KB Output is correct
63 Correct 2 ms 376 KB Output is correct
64 Correct 2 ms 376 KB Output is correct
65 Correct 342 ms 41436 KB Output is correct
66 Correct 341 ms 41472 KB Output is correct
67 Correct 343 ms 41464 KB Output is correct
68 Correct 343 ms 41464 KB Output is correct
69 Correct 342 ms 41452 KB Output is correct
70 Correct 348 ms 41336 KB Output is correct
71 Correct 346 ms 41432 KB Output is correct
72 Correct 348 ms 41464 KB Output is correct
73 Correct 349 ms 43416 KB Output is correct
74 Correct 359 ms 43428 KB Output is correct
75 Correct 345 ms 43384 KB Output is correct
76 Correct 353 ms 43384 KB Output is correct
77 Correct 342 ms 43644 KB Output is correct
78 Correct 344 ms 43384 KB Output is correct
79 Correct 340 ms 43384 KB Output is correct
80 Correct 343 ms 43512 KB Output is correct
81 Correct 344 ms 43388 KB Output is correct
82 Correct 351 ms 43464 KB Output is correct
83 Correct 353 ms 43332 KB Output is correct
84 Correct 359 ms 43480 KB Output is correct
85 Correct 351 ms 43384 KB Output is correct
86 Correct 353 ms 43504 KB Output is correct
87 Correct 352 ms 43512 KB Output is correct
88 Correct 358 ms 43356 KB Output is correct
89 Correct 355 ms 43428 KB Output is correct
90 Correct 356 ms 43512 KB Output is correct
91 Correct 360 ms 43356 KB Output is correct
92 Correct 355 ms 43288 KB Output is correct
93 Correct 362 ms 43512 KB Output is correct
94 Correct 356 ms 43376 KB Output is correct
95 Correct 356 ms 43384 KB Output is correct
96 Correct 356 ms 43508 KB Output is correct
97 Correct 357 ms 43392 KB Output is correct
98 Correct 357 ms 43512 KB Output is correct
99 Correct 358 ms 43340 KB Output is correct
100 Correct 452 ms 43512 KB Output is correct
101 Correct 357 ms 43512 KB Output is correct
102 Correct 361 ms 43416 KB Output is correct