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Submission #104559

# Submission time Handle Problem Language Result Execution time Memory
104559 2019-04-08T03:32:49 Z minhtung0404 Lamps (JOI19_lamps) C++17
100 / 100
 112 ms 27932 KB 
#include<bits/stdc++.h>
const int N = 1e6 + 5;
const int inf = 1e9 + 7;
using namespace std;

string s, x;
int n, dp[N][3][2], ans = inf;

char cal(char c, int i, int j){
    if (i != 2) c = i + '0';
    if (j) c = '1' + '0' - c;
    return c;
}

void up(int&a, int b){
    if (a > b) a = b;
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    cin >> n >> s >> x; s = '.' + s; x = '.' + x;
    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] = inf;
    dp[0][2][0] = 0;
    for (int i = 1; i <= n; i++){
        for (int j = 0; j < 3; j++){
            for (int k = 0; k < 2; k++){
                if (cal(s[i], 0, k) == x[i]) up(dp[i][0][k], dp[i-1][j][k] + (j != 0));
                if (cal(s[i], 1, k) == x[i]) up(dp[i][1][k], dp[i-1][j][k] + (j != 1));
                if (cal(s[i], 2, k) == x[i]) up(dp[i][2][k], dp[i-1][j][k]);

                if (cal(s[i], 0, k ^ 1) == x[i]) up(dp[i][0][k ^ 1], dp[i-1][j][k] + (j != 0) + (k == 0));
                if (cal(s[i], 1, k ^ 1) == x[i]) up(dp[i][1][k ^ 1], dp[i-1][j][k] + (j != 1) + (k == 0));
                if (cal(s[i], 2, k ^ 1) == x[i]) up(dp[i][2][k ^ 1], dp[i-1][j][k] + (k == 0));
            }
        }
    }
    for (int i = 0; i < 3; i++) for (int j = 0; j < 2; j++) up(ans, dp[n][i][j]);
    cout << ans;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 23800 KB Output is correct
2 Correct 23 ms 23800 KB Output is correct
3 Correct 22 ms 23800 KB Output is correct
4 Correct 22 ms 23808 KB Output is correct
5 Correct 26 ms 23808 KB Output is correct
6 Correct 21 ms 23780 KB Output is correct
7 Correct 25 ms 23808 KB Output is correct
8 Correct 21 ms 23908 KB Output is correct
9 Correct 21 ms 23812 KB Output is correct
10 Correct 22 ms 23808 KB Output is correct
11 Correct 22 ms 23800 KB Output is correct
12 Correct 24 ms 23856 KB Output is correct
13 Correct 27 ms 23800 KB Output is correct
14 Correct 22 ms 23936 KB Output is correct
15 Correct 24 ms 23800 KB Output is correct
16 Correct 23 ms 23808 KB Output is correct
17 Correct 23 ms 23808 KB Output is correct
18 Correct 27 ms 23800 KB Output is correct
19 Correct 24 ms 23808 KB Output is correct
20 Correct 21 ms 23800 KB Output is correct
21 Correct 21 ms 23808 KB Output is correct
22 Correct 22 ms 23936 KB Output is correct
23 Correct 21 ms 23808 KB Output is correct
24 Correct 21 ms 23792 KB Output is correct
25 Correct 24 ms 23964 KB Output is correct
26 Correct 23 ms 23808 KB Output is correct
27 Correct 24 ms 23808 KB Output is correct
28 Correct 21 ms 23800 KB Output is correct
29 Correct 26 ms 23808 KB Output is correct
30 Correct 22 ms 23800 KB Output is correct
31 Correct 16 ms 23936 KB Output is correct
32 Correct 20 ms 23800 KB Output is correct
33 Correct 22 ms 23800 KB Output is correct
34 Correct 20 ms 23808 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 23800 KB Output is correct
2 Correct 23 ms 23800 KB Output is correct
3 Correct 22 ms 23800 KB Output is correct
4 Correct 22 ms 23808 KB Output is correct
5 Correct 26 ms 23808 KB Output is correct
6 Correct 21 ms 23780 KB Output is correct
7 Correct 25 ms 23808 KB Output is correct
8 Correct 21 ms 23908 KB Output is correct
9 Correct 21 ms 23812 KB Output is correct
10 Correct 22 ms 23808 KB Output is correct
11 Correct 22 ms 23800 KB Output is correct
12 Correct 24 ms 23856 KB Output is correct
13 Correct 27 ms 23800 KB Output is correct
14 Correct 22 ms 23936 KB Output is correct
15 Correct 24 ms 23800 KB Output is correct
16 Correct 23 ms 23808 KB Output is correct
17 Correct 23 ms 23808 KB Output is correct
18 Correct 27 ms 23800 KB Output is correct
19 Correct 24 ms 23808 KB Output is correct
20 Correct 21 ms 23800 KB Output is correct
21 Correct 21 ms 23808 KB Output is correct
22 Correct 22 ms 23936 KB Output is correct
23 Correct 21 ms 23808 KB Output is correct
24 Correct 21 ms 23792 KB Output is correct
25 Correct 24 ms 23964 KB Output is correct
26 Correct 23 ms 23808 KB Output is correct
27 Correct 24 ms 23808 KB Output is correct
28 Correct 21 ms 23800 KB Output is correct
29 Correct 26 ms 23808 KB Output is correct
30 Correct 22 ms 23800 KB Output is correct
31 Correct 16 ms 23936 KB Output is correct
32 Correct 20 ms 23800 KB Output is correct
33 Correct 22 ms 23800 KB Output is correct
34 Correct 20 ms 23808 KB Output is correct
35 Correct 23 ms 23808 KB Output is correct
36 Correct 23 ms 23800 KB Output is correct
37 Correct 21 ms 23800 KB Output is correct
38 Correct 22 ms 23864 KB Output is correct
39 Correct 24 ms 23772 KB Output is correct
40 Correct 22 ms 23808 KB Output is correct
41 Correct 22 ms 23800 KB Output is correct
42 Correct 22 ms 23800 KB Output is correct
43 Correct 22 ms 23808 KB Output is correct
44 Correct 24 ms 23760 KB Output is correct
45 Correct 25 ms 23776 KB Output is correct
46 Correct 22 ms 23808 KB Output is correct
47 Correct 22 ms 23936 KB Output is correct
48 Correct 22 ms 23856 KB Output is correct
49 Correct 22 ms 23808 KB Output is correct
50 Correct 23 ms 23808 KB Output is correct
51 Correct 22 ms 23936 KB Output is correct
52 Correct 22 ms 23800 KB Output is correct
53 Correct 26 ms 23800 KB Output is correct
54 Correct 22 ms 23800 KB Output is correct
55 Correct 26 ms 23800 KB Output is correct
56 Correct 23 ms 23808 KB Output is correct
57 Correct 25 ms 23800 KB Output is correct
58 Correct 23 ms 23800 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 23808 KB Output is correct
2 Correct 24 ms 23800 KB Output is correct
3 Correct 23 ms 23764 KB Output is correct
4 Correct 21 ms 23808 KB Output is correct
5 Correct 22 ms 23808 KB Output is correct
6 Correct 23 ms 23776 KB Output is correct
7 Correct 74 ms 27788 KB Output is correct
8 Correct 82 ms 27684 KB Output is correct
9 Correct 82 ms 27800 KB Output is correct
10 Correct 78 ms 27820 KB Output is correct
11 Correct 80 ms 27932 KB Output is correct
12 Correct 71 ms 27808 KB Output is correct
13 Correct 80 ms 27812 KB Output is correct
14 Correct 79 ms 27812 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 23800 KB Output is correct
2 Correct 23 ms 23800 KB Output is correct
3 Correct 22 ms 23800 KB Output is correct
4 Correct 22 ms 23808 KB Output is correct
5 Correct 26 ms 23808 KB Output is correct
6 Correct 21 ms 23780 KB Output is correct
7 Correct 25 ms 23808 KB Output is correct
8 Correct 21 ms 23908 KB Output is correct
9 Correct 21 ms 23812 KB Output is correct
10 Correct 22 ms 23808 KB Output is correct
11 Correct 22 ms 23800 KB Output is correct
12 Correct 24 ms 23856 KB Output is correct
13 Correct 27 ms 23800 KB Output is correct
14 Correct 22 ms 23936 KB Output is correct
15 Correct 24 ms 23800 KB Output is correct
16 Correct 23 ms 23808 KB Output is correct
17 Correct 23 ms 23808 KB Output is correct
18 Correct 27 ms 23800 KB Output is correct
19 Correct 24 ms 23808 KB Output is correct
20 Correct 21 ms 23800 KB Output is correct
21 Correct 21 ms 23808 KB Output is correct
22 Correct 22 ms 23936 KB Output is correct
23 Correct 21 ms 23808 KB Output is correct
24 Correct 21 ms 23792 KB Output is correct
25 Correct 24 ms 23964 KB Output is correct
26 Correct 23 ms 23808 KB Output is correct
27 Correct 24 ms 23808 KB Output is correct
28 Correct 21 ms 23800 KB Output is correct
29 Correct 26 ms 23808 KB Output is correct
30 Correct 22 ms 23800 KB Output is correct
31 Correct 16 ms 23936 KB Output is correct
32 Correct 20 ms 23800 KB Output is correct
33 Correct 22 ms 23800 KB Output is correct
34 Correct 20 ms 23808 KB Output is correct
35 Correct 23 ms 23808 KB Output is correct
36 Correct 23 ms 23800 KB Output is correct
37 Correct 21 ms 23800 KB Output is correct
38 Correct 22 ms 23864 KB Output is correct
39 Correct 24 ms 23772 KB Output is correct
40 Correct 22 ms 23808 KB Output is correct
41 Correct 22 ms 23800 KB Output is correct
42 Correct 22 ms 23800 KB Output is correct
43 Correct 22 ms 23808 KB Output is correct
44 Correct 24 ms 23760 KB Output is correct
45 Correct 25 ms 23776 KB Output is correct
46 Correct 22 ms 23808 KB Output is correct
47 Correct 22 ms 23936 KB Output is correct
48 Correct 22 ms 23856 KB Output is correct
49 Correct 22 ms 23808 KB Output is correct
50 Correct 23 ms 23808 KB Output is correct
51 Correct 22 ms 23936 KB Output is correct
52 Correct 22 ms 23800 KB Output is correct
53 Correct 26 ms 23800 KB Output is correct
54 Correct 22 ms 23800 KB Output is correct
55 Correct 26 ms 23800 KB Output is correct
56 Correct 23 ms 23808 KB Output is correct
57 Correct 25 ms 23800 KB Output is correct
58 Correct 23 ms 23800 KB Output is correct
59 Correct 21 ms 23808 KB Output is correct
60 Correct 24 ms 23800 KB Output is correct
61 Correct 23 ms 23764 KB Output is correct
62 Correct 21 ms 23808 KB Output is correct
63 Correct 22 ms 23808 KB Output is correct
64 Correct 23 ms 23776 KB Output is correct
65 Correct 74 ms 27788 KB Output is correct
66 Correct 82 ms 27684 KB Output is correct
67 Correct 82 ms 27800 KB Output is correct
68 Correct 78 ms 27820 KB Output is correct
69 Correct 80 ms 27932 KB Output is correct
70 Correct 71 ms 27808 KB Output is correct
71 Correct 80 ms 27812 KB Output is correct
72 Correct 79 ms 27812 KB Output is correct
73 Correct 90 ms 27680 KB Output is correct
74 Correct 92 ms 27824 KB Output is correct
75 Correct 86 ms 27724 KB Output is correct
76 Correct 86 ms 27812 KB Output is correct
77 Correct 81 ms 27812 KB Output is correct
78 Correct 83 ms 27812 KB Output is correct
79 Correct 75 ms 27816 KB Output is correct
80 Correct 96 ms 27804 KB Output is correct
81 Correct 84 ms 27800 KB Output is correct
82 Correct 79 ms 27828 KB Output is correct
83 Correct 83 ms 27708 KB Output is correct
84 Correct 102 ms 27680 KB Output is correct
85 Correct 89 ms 27804 KB Output is correct
86 Correct 86 ms 27704 KB Output is correct
87 Correct 84 ms 27684 KB Output is correct
88 Correct 95 ms 27684 KB Output is correct
89 Correct 80 ms 27792 KB Output is correct
90 Correct 76 ms 27804 KB Output is correct
91 Correct 78 ms 27820 KB Output is correct
92 Correct 95 ms 27808 KB Output is correct
93 Correct 82 ms 27820 KB Output is correct
94 Correct 87 ms 27820 KB Output is correct
95 Correct 87 ms 27804 KB Output is correct
96 Correct 82 ms 27728 KB Output is correct
97 Correct 112 ms 27812 KB Output is correct
98 Correct 96 ms 27812 KB Output is correct
99 Correct 83 ms 27808 KB Output is correct
100 Correct 83 ms 27812 KB Output is correct
101 Correct 85 ms 27684 KB Output is correct
102 Correct 83 ms 27816 KB Output is correct