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Submission #967138

# Submission time Handle Problem Language Result Execution time Memory
967138 2024-04-21T09:11:45 Z ttamx Lamps (JOI19_lamps) C++17
100 / 100
 90 ms 28096 KB 
#include<bits/stdc++.h>

using namespace std;

const int N=1e6+5;

int n;
char a[N],b[N];
int dp[N][3][2];

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n >> (a+1) >> (b+1);
    for(int i=0;i<=n;i++)for(int j=0;j<3;j++)for(int k=0;k<2;k++)dp[i][j][k]=2*n;
    dp[0][0][0]=0;
    for(int i=1;i<=n;i++)for(int j=0;j<3;j++)for(int k=0;k<3;k++)for(int tl=0;tl<2;tl++)for(int tr=0;tr<2;tr++){
        int v=a[i]-'0';
        if(k)v=k-1;
        if(tr)v^=1;
        if(v!=b[i]-'0')continue;
        dp[i][k][tr]=min(dp[i][k][tr],dp[i-1][j][tl]+(k&&j!=k)+(tl<tr));
    }
    int ans=n*2;
    for(int i=0;i<3;i++)for(int j=0;j<2;j++)ans=min(ans,dp[n][i][j]);
    cout << ans;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 4 ms 2392 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 2 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2516 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2392 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 2 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2508 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 0 ms 2648 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 4 ms 2392 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 2 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2516 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2392 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 2 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2508 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 0 ms 2648 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2592 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2648 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 1 ms 2392 KB Output is correct
52 Correct 1 ms 2392 KB Output is correct
53 Correct 1 ms 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 1 ms 2396 KB Output is correct
56 Correct 1 ms 2396 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 1 ms 2396 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2516 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 64 ms 25880 KB Output is correct
8 Correct 63 ms 25948 KB Output is correct
9 Correct 59 ms 25692 KB Output is correct
10 Correct 61 ms 25692 KB Output is correct
11 Correct 60 ms 25872 KB Output is correct
12 Correct 55 ms 25688 KB Output is correct
13 Correct 59 ms 25688 KB Output is correct
14 Correct 60 ms 25880 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 4 ms 2392 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 2 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2516 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2392 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 2 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2508 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 0 ms 2648 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2592 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2648 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 1 ms 2392 KB Output is correct
52 Correct 1 ms 2392 KB Output is correct
53 Correct 1 ms 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 1 ms 2396 KB Output is correct
56 Correct 1 ms 2396 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 1 ms 2396 KB Output is correct
59 Correct 1 ms 2396 KB Output is correct
60 Correct 1 ms 2516 KB Output is correct
61 Correct 1 ms 2396 KB Output is correct
62 Correct 1 ms 2396 KB Output is correct
63 Correct 1 ms 2396 KB Output is correct
64 Correct 1 ms 2396 KB Output is correct
65 Correct 64 ms 25880 KB Output is correct
66 Correct 63 ms 25948 KB Output is correct
67 Correct 59 ms 25692 KB Output is correct
68 Correct 61 ms 25692 KB Output is correct
69 Correct 60 ms 25872 KB Output is correct
70 Correct 55 ms 25688 KB Output is correct
71 Correct 59 ms 25688 KB Output is correct
72 Correct 60 ms 25880 KB Output is correct
73 Correct 63 ms 27736 KB Output is correct
74 Correct 66 ms 27832 KB Output is correct
75 Correct 64 ms 27992 KB Output is correct
76 Correct 58 ms 27712 KB Output is correct
77 Correct 64 ms 27748 KB Output is correct
78 Correct 68 ms 27740 KB Output is correct
79 Correct 68 ms 27736 KB Output is correct
80 Correct 62 ms 27740 KB Output is correct
81 Correct 67 ms 27836 KB Output is correct
82 Correct 70 ms 27728 KB Output is correct
83 Correct 70 ms 27736 KB Output is correct
84 Correct 68 ms 27836 KB Output is correct
85 Correct 71 ms 27740 KB Output is correct
86 Correct 69 ms 27740 KB Output is correct
87 Correct 71 ms 27740 KB Output is correct
88 Correct 71 ms 27736 KB Output is correct
89 Correct 72 ms 28096 KB Output is correct
90 Correct 68 ms 27840 KB Output is correct
91 Correct 87 ms 27736 KB Output is correct
92 Correct 74 ms 27836 KB Output is correct
93 Correct 74 ms 27740 KB Output is correct
94 Correct 75 ms 27836 KB Output is correct
95 Correct 73 ms 27736 KB Output is correct
96 Correct 73 ms 27740 KB Output is correct
97 Correct 71 ms 27728 KB Output is correct
98 Correct 90 ms 27960 KB Output is correct
99 Correct 72 ms 27740 KB Output is correct
100 Correct 72 ms 27740 KB Output is correct
101 Correct 75 ms 27612 KB Output is correct
102 Correct 75 ms 27836 KB Output is correct