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Submission #1028373

# Submission time Handle Problem Language Result Execution time Memory
1028373 2024-07-19T18:08:46 Z Blagoj Lamps (JOI19_lamps) C++17
100 / 100
 64 ms 51452 KB 
#include <bits/stdc++.h>

using namespace std;

#define endl '\n'
#define ll long long
#define all(x) (x).begin(), (x).end()

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin >> n;
    string s1, s2;
    cin >> s1 >> s2;
    s1 = "." + s1;
    s2 = "." + s2;
    ll dp[n + 10][3][2];
    for (int i = 0; i <= n; i++)
        for (int j = 0; j < 3; j++) 
            for (int l = 0; l < 2; l++) dp[i][j][l] = 1e12;
    dp[0][0][0] = 0;
    for (int i = 1; i <= n; i++) {
        for (int j = 0; j < 3; j++) {
            for (int l = 0; l < 2; l++) {
                int val = s1[i] - '0';
                if (j == 1) val = 0;
                if (j == 2) val = 1;
                if (l == 1) val ^= 1;
                if (val != s2[i] - '0') continue;
                for (int prevJ = 0; prevJ < 3; prevJ++) 
                    for (int prevL = 0; prevL < 2; prevL++) 
                        dp[i][j][l] = min(dp[i][j][l], dp[i - 1][prevJ][prevL] + (j > 0 && j != prevJ) + (l > 0 && l != prevL));
            }
        }
    }
    ll ans = 1e12;
    for (int j = 0; j < 3; j++) 
        for (int l = 0; l < 2; l++) ans = min(ans, dp[n][j][l]);
    cout << ans;
}

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 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 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 0 ms 348 KB Output is correct
10 Correct 0 ms 344 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 0 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 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 452 KB Output is correct
25 Correct 0 ms 452 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 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 0 ms 348 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 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 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 0 ms 348 KB Output is correct
10 Correct 0 ms 344 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 0 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 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 452 KB Output is correct
25 Correct 0 ms 452 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 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 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 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 1 ms 348 KB Output is correct
45 Correct 1 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 0 ms 420 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 600 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 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 604 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 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 49 ms 51224 KB Output is correct
8 Correct 51 ms 51196 KB Output is correct
9 Correct 53 ms 51200 KB Output is correct
10 Correct 49 ms 51188 KB Output is correct
11 Correct 48 ms 51200 KB Output is correct
12 Correct 48 ms 51196 KB Output is correct
13 Correct 48 ms 51196 KB Output is correct
14 Correct 46 ms 51124 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 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 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 0 ms 348 KB Output is correct
10 Correct 0 ms 344 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 0 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 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 452 KB Output is correct
25 Correct 0 ms 452 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 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 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 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 1 ms 348 KB Output is correct
45 Correct 1 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 0 ms 420 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 600 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 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 604 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 344 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 49 ms 51224 KB Output is correct
66 Correct 51 ms 51196 KB Output is correct
67 Correct 53 ms 51200 KB Output is correct
68 Correct 49 ms 51188 KB Output is correct
69 Correct 48 ms 51200 KB Output is correct
70 Correct 48 ms 51196 KB Output is correct
71 Correct 48 ms 51196 KB Output is correct
72 Correct 46 ms 51124 KB Output is correct
73 Correct 49 ms 51200 KB Output is correct
74 Correct 47 ms 51192 KB Output is correct
75 Correct 48 ms 51204 KB Output is correct
76 Correct 49 ms 51196 KB Output is correct
77 Correct 47 ms 51300 KB Output is correct
78 Correct 48 ms 51324 KB Output is correct
79 Correct 47 ms 51120 KB Output is correct
80 Correct 47 ms 51196 KB Output is correct
81 Correct 47 ms 51200 KB Output is correct
82 Correct 50 ms 51196 KB Output is correct
83 Correct 49 ms 51208 KB Output is correct
84 Correct 50 ms 51192 KB Output is correct
85 Correct 51 ms 51196 KB Output is correct
86 Correct 51 ms 51196 KB Output is correct
87 Correct 56 ms 51196 KB Output is correct
88 Correct 50 ms 51280 KB Output is correct
89 Correct 51 ms 51204 KB Output is correct
90 Correct 51 ms 51192 KB Output is correct
91 Correct 52 ms 51288 KB Output is correct
92 Correct 64 ms 51160 KB Output is correct
93 Correct 52 ms 51192 KB Output is correct
94 Correct 54 ms 51104 KB Output is correct
95 Correct 53 ms 51120 KB Output is correct
96 Correct 56 ms 51196 KB Output is correct
97 Correct 53 ms 51196 KB Output is correct
98 Correct 59 ms 51204 KB Output is correct
99 Correct 51 ms 51252 KB Output is correct
100 Correct 52 ms 51204 KB Output is correct
101 Correct 52 ms 51200 KB Output is correct
102 Correct 52 ms 51452 KB Output is correct