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Submission #941448

# Submission time Handle Problem Language Result Execution time Memory
941448 2024-03-09T01:02:35 Z juliany2 Lamps (JOI19_lamps) C++17
100 / 100
 39 ms 4768 KB 
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define all(x) (x).begin(), (x).end()

void ckmin(int &x, int y) {
    x = min(x, y);
}

int main() {
    cin.tie(0)->sync_with_stdio(false);

    int n;
    string a, b;
    cin >> n >> a >> b;

    vector<vector<int>> dp(2, vector<int> (3, 1e9));
    dp[0][0] = 0;

    for (int i = 0; i < n; i++) {
        for (int x : {0, 1})
            for (int y : {0, 1, 2})
                ckmin(dp[x][0], dp[x][y]);

        for (int y : {0, 1, 2})
            ckmin(dp[0][y], dp[1][y]);

        for (int x : {0, 1})
            for (int y : {1, 2})
                ckmin(dp[x][y], dp[x][0] + 1);

        for (int y : {0, 1, 2})
            ckmin(dp[1][y], dp[0][y] + 1);

        for (int x : {0, 1}) {
            for (int y : {0, 1, 2}) {
                char have = (y == 0 ? a[i] : (y - 1 + '0'));
                if ((have == b[i]) == x)
                    dp[x][y] = 1e9;
            }
        }
    }

    int ans = 1e9;
    for (int x : {0, 1})
        for (int y : {0, 1, 2})
            ans = min(ans, dp[x][y]);

    cout << ans << '\n';

    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 532 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 452 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 532 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 452 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 452 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 604 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 600 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 456 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 29 ms 4600 KB Output is correct
8 Correct 24 ms 4348 KB Output is correct
9 Correct 24 ms 4340 KB Output is correct
10 Correct 26 ms 4524 KB Output is correct
11 Correct 25 ms 4344 KB Output is correct
12 Correct 24 ms 4736 KB Output is correct
13 Correct 27 ms 4588 KB Output is correct
14 Correct 24 ms 4768 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 532 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 452 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 452 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 604 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 600 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 1 ms 344 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 456 KB Output is correct
64 Correct 0 ms 344 KB Output is correct
65 Correct 29 ms 4600 KB Output is correct
66 Correct 24 ms 4348 KB Output is correct
67 Correct 24 ms 4340 KB Output is correct
68 Correct 26 ms 4524 KB Output is correct
69 Correct 25 ms 4344 KB Output is correct
70 Correct 24 ms 4736 KB Output is correct
71 Correct 27 ms 4588 KB Output is correct
72 Correct 24 ms 4768 KB Output is correct
73 Correct 25 ms 4340 KB Output is correct
74 Correct 24 ms 4408 KB Output is correct
75 Correct 24 ms 4344 KB Output is correct
76 Correct 24 ms 4524 KB Output is correct
77 Correct 25 ms 4344 KB Output is correct
78 Correct 24 ms 4524 KB Output is correct
79 Correct 24 ms 4372 KB Output is correct
80 Correct 24 ms 4344 KB Output is correct
81 Correct 24 ms 4344 KB Output is correct
82 Correct 24 ms 4500 KB Output is correct
83 Correct 29 ms 4496 KB Output is correct
84 Correct 29 ms 4344 KB Output is correct
85 Correct 29 ms 4524 KB Output is correct
86 Correct 29 ms 4600 KB Output is correct
87 Correct 29 ms 4380 KB Output is correct
88 Correct 29 ms 4520 KB Output is correct
89 Correct 29 ms 4520 KB Output is correct
90 Correct 29 ms 4344 KB Output is correct
91 Correct 32 ms 4592 KB Output is correct
92 Correct 36 ms 4524 KB Output is correct
93 Correct 34 ms 4524 KB Output is correct
94 Correct 35 ms 4344 KB Output is correct
95 Correct 34 ms 4524 KB Output is correct
96 Correct 34 ms 4344 KB Output is correct
97 Correct 35 ms 4520 KB Output is correct
98 Correct 34 ms 4340 KB Output is correct
99 Correct 33 ms 4344 KB Output is correct
100 Correct 34 ms 4340 KB Output is correct
101 Correct 39 ms 4344 KB Output is correct
102 Correct 34 ms 4524 KB Output is correct