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Submission #257627

# Submission time Handle Problem Language Result Execution time Memory
257627 2020-08-04T13:43:44 Z elitewantsyou Lamps (JOI19_lamps) C++14
100 / 100
 115 ms 27896 KB 
#include <bits/stdc++.h>

#define fi first
#define se second

const int N = 1000010;

using namespace std;

int n;
int A[N], B[N], C[N], D[N];
char a[N], b[N];
int d[N][3][2];

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

int main()
{
        ios_base::sync_with_stdio(0);

        //freopen("input.txt", "r", stdin);
        //freopen("output.txt", "w", stdout);

        cin >> n;
        for(int i = 1; i <= n; i++) cin >> a[i];
        for(int i = 1; i <= n; i++) cin >> b[i];

        int inf = 1e9;
        for(int i = 0; i < N; i++){
                for(int j = 0; j < 3; j++){
                        for(int h = 0; h < 2; h++){
                                d[i][j][h] = inf;
                        }
                }
        }
        d[0][0][0] = 0;
        for(int i = 1; i <= n; i++){
                for(int g1 = 0; g1 < 3; g1++){
                        for(int g2 = 0; g2 < 2; g2++){
                                upd(d[i][g1][g2], d[i - 1][g1][g2]);
                                upd(d[i][0][g2], d[i - 1][g1][g2]);
                                upd(d[i][g1][0], d[i - 1][g1][g2]);
                                upd(d[i][0][0], d[i - 1][g1][g2]);
                                if(g1 == 0){
                                        upd(d[i][1][g2], d[i - 1][g1][g2] + 1);
                                        upd(d[i][2][g2], d[i - 1][g1][g2] + 1);
                                        if(g2 == 0){
                                                upd(d[i][1][1], d[i - 1][g1][g2] + 2);
                                                upd(d[i][2][1], d[i - 1][g1][g2] + 2);
                                        }
                                }
                                if(g2 == 0){
                                        upd(d[i][g1][1], d[i - 1][g1][g2] + 1);
                                }
                        }
                }
                for(int g1 = 0; g1 < 3; g1++){
                        for(int g2 = 0; g2 < 2; g2++){
                                int cur = a[i] - '0', need = b[i] - '0';
                                if(g1 == 1) cur = 1;
                                else if(g1 == 2) cur = 0;
                                if(g2 == 1) cur ^= 1;
                                if(cur != need){
                                        d[i][g1][g2] = inf;
                                }
                        }
                }
        }
        int res = inf;
        for(int i = 0; i < 3; i++){
                for(int j = 0; j < 2; j++){
                        res = min(res, d[n][i][j]);
                }
        }
        cout << res << "\n";
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23808 KB Output is correct
2 Correct 13 ms 23808 KB Output is correct
3 Correct 15 ms 23808 KB Output is correct
4 Correct 14 ms 23808 KB Output is correct
5 Correct 16 ms 23808 KB Output is correct
6 Correct 14 ms 23808 KB Output is correct
7 Correct 16 ms 23808 KB Output is correct
8 Correct 13 ms 23808 KB Output is correct
9 Correct 15 ms 23804 KB Output is correct
10 Correct 13 ms 23808 KB Output is correct
11 Correct 16 ms 23824 KB Output is correct
12 Correct 14 ms 23812 KB Output is correct
13 Correct 14 ms 23808 KB Output is correct
14 Correct 16 ms 23808 KB Output is correct
15 Correct 14 ms 23808 KB Output is correct
16 Correct 13 ms 23808 KB Output is correct
17 Correct 15 ms 23808 KB Output is correct
18 Correct 14 ms 23808 KB Output is correct
19 Correct 14 ms 23808 KB Output is correct
20 Correct 14 ms 23808 KB Output is correct
21 Correct 14 ms 23808 KB Output is correct
22 Correct 14 ms 23808 KB Output is correct
23 Correct 14 ms 23808 KB Output is correct
24 Correct 13 ms 23808 KB Output is correct
25 Correct 13 ms 23808 KB Output is correct
26 Correct 18 ms 23808 KB Output is correct
27 Correct 12 ms 23808 KB Output is correct
28 Correct 13 ms 23808 KB Output is correct
29 Correct 13 ms 23808 KB Output is correct
30 Correct 12 ms 23808 KB Output is correct
31 Correct 15 ms 23808 KB Output is correct
32 Correct 12 ms 23808 KB Output is correct
33 Correct 13 ms 23808 KB Output is correct
34 Correct 14 ms 23808 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23808 KB Output is correct
2 Correct 13 ms 23808 KB Output is correct
3 Correct 15 ms 23808 KB Output is correct
4 Correct 14 ms 23808 KB Output is correct
5 Correct 16 ms 23808 KB Output is correct
6 Correct 14 ms 23808 KB Output is correct
7 Correct 16 ms 23808 KB Output is correct
8 Correct 13 ms 23808 KB Output is correct
9 Correct 15 ms 23804 KB Output is correct
10 Correct 13 ms 23808 KB Output is correct
11 Correct 16 ms 23824 KB Output is correct
12 Correct 14 ms 23812 KB Output is correct
13 Correct 14 ms 23808 KB Output is correct
14 Correct 16 ms 23808 KB Output is correct
15 Correct 14 ms 23808 KB Output is correct
16 Correct 13 ms 23808 KB Output is correct
17 Correct 15 ms 23808 KB Output is correct
18 Correct 14 ms 23808 KB Output is correct
19 Correct 14 ms 23808 KB Output is correct
20 Correct 14 ms 23808 KB Output is correct
21 Correct 14 ms 23808 KB Output is correct
22 Correct 14 ms 23808 KB Output is correct
23 Correct 14 ms 23808 KB Output is correct
24 Correct 13 ms 23808 KB Output is correct
25 Correct 13 ms 23808 KB Output is correct
26 Correct 18 ms 23808 KB Output is correct
27 Correct 12 ms 23808 KB Output is correct
28 Correct 13 ms 23808 KB Output is correct
29 Correct 13 ms 23808 KB Output is correct
30 Correct 12 ms 23808 KB Output is correct
31 Correct 15 ms 23808 KB Output is correct
32 Correct 12 ms 23808 KB Output is correct
33 Correct 13 ms 23808 KB Output is correct
34 Correct 14 ms 23808 KB Output is correct
35 Correct 13 ms 23808 KB Output is correct
36 Correct 12 ms 23808 KB Output is correct
37 Correct 13 ms 23808 KB Output is correct
38 Correct 14 ms 23808 KB Output is correct
39 Correct 18 ms 23936 KB Output is correct
40 Correct 14 ms 23808 KB Output is correct
41 Correct 14 ms 23808 KB Output is correct
42 Correct 13 ms 23808 KB Output is correct
43 Correct 16 ms 23808 KB Output is correct
44 Correct 15 ms 23808 KB Output is correct
45 Correct 15 ms 23808 KB Output is correct
46 Correct 15 ms 23808 KB Output is correct
47 Correct 15 ms 23808 KB Output is correct
48 Correct 15 ms 23808 KB Output is correct
49 Correct 15 ms 23808 KB Output is correct
50 Correct 15 ms 23808 KB Output is correct
51 Correct 15 ms 23808 KB Output is correct
52 Correct 12 ms 23808 KB Output is correct
53 Correct 16 ms 23840 KB Output is correct
54 Correct 16 ms 23808 KB Output is correct
55 Correct 15 ms 23840 KB Output is correct
56 Correct 14 ms 23808 KB Output is correct
57 Correct 14 ms 23808 KB Output is correct
58 Correct 15 ms 23808 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23808 KB Output is correct
2 Correct 14 ms 23808 KB Output is correct
3 Correct 13 ms 23808 KB Output is correct
4 Correct 14 ms 23808 KB Output is correct
5 Correct 13 ms 23808 KB Output is correct
6 Correct 16 ms 23808 KB Output is correct
7 Correct 115 ms 27768 KB Output is correct
8 Correct 95 ms 27664 KB Output is correct
9 Correct 107 ms 27768 KB Output is correct
10 Correct 95 ms 27792 KB Output is correct
11 Correct 93 ms 27792 KB Output is correct
12 Correct 101 ms 27844 KB Output is correct
13 Correct 96 ms 27768 KB Output is correct
14 Correct 97 ms 27896 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23808 KB Output is correct
2 Correct 13 ms 23808 KB Output is correct
3 Correct 15 ms 23808 KB Output is correct
4 Correct 14 ms 23808 KB Output is correct
5 Correct 16 ms 23808 KB Output is correct
6 Correct 14 ms 23808 KB Output is correct
7 Correct 16 ms 23808 KB Output is correct
8 Correct 13 ms 23808 KB Output is correct
9 Correct 15 ms 23804 KB Output is correct
10 Correct 13 ms 23808 KB Output is correct
11 Correct 16 ms 23824 KB Output is correct
12 Correct 14 ms 23812 KB Output is correct
13 Correct 14 ms 23808 KB Output is correct
14 Correct 16 ms 23808 KB Output is correct
15 Correct 14 ms 23808 KB Output is correct
16 Correct 13 ms 23808 KB Output is correct
17 Correct 15 ms 23808 KB Output is correct
18 Correct 14 ms 23808 KB Output is correct
19 Correct 14 ms 23808 KB Output is correct
20 Correct 14 ms 23808 KB Output is correct
21 Correct 14 ms 23808 KB Output is correct
22 Correct 14 ms 23808 KB Output is correct
23 Correct 14 ms 23808 KB Output is correct
24 Correct 13 ms 23808 KB Output is correct
25 Correct 13 ms 23808 KB Output is correct
26 Correct 18 ms 23808 KB Output is correct
27 Correct 12 ms 23808 KB Output is correct
28 Correct 13 ms 23808 KB Output is correct
29 Correct 13 ms 23808 KB Output is correct
30 Correct 12 ms 23808 KB Output is correct
31 Correct 15 ms 23808 KB Output is correct
32 Correct 12 ms 23808 KB Output is correct
33 Correct 13 ms 23808 KB Output is correct
34 Correct 14 ms 23808 KB Output is correct
35 Correct 13 ms 23808 KB Output is correct
36 Correct 12 ms 23808 KB Output is correct
37 Correct 13 ms 23808 KB Output is correct
38 Correct 14 ms 23808 KB Output is correct
39 Correct 18 ms 23936 KB Output is correct
40 Correct 14 ms 23808 KB Output is correct
41 Correct 14 ms 23808 KB Output is correct
42 Correct 13 ms 23808 KB Output is correct
43 Correct 16 ms 23808 KB Output is correct
44 Correct 15 ms 23808 KB Output is correct
45 Correct 15 ms 23808 KB Output is correct
46 Correct 15 ms 23808 KB Output is correct
47 Correct 15 ms 23808 KB Output is correct
48 Correct 15 ms 23808 KB Output is correct
49 Correct 15 ms 23808 KB Output is correct
50 Correct 15 ms 23808 KB Output is correct
51 Correct 15 ms 23808 KB Output is correct
52 Correct 12 ms 23808 KB Output is correct
53 Correct 16 ms 23840 KB Output is correct
54 Correct 16 ms 23808 KB Output is correct
55 Correct 15 ms 23840 KB Output is correct
56 Correct 14 ms 23808 KB Output is correct
57 Correct 14 ms 23808 KB Output is correct
58 Correct 15 ms 23808 KB Output is correct
59 Correct 13 ms 23808 KB Output is correct
60 Correct 14 ms 23808 KB Output is correct
61 Correct 13 ms 23808 KB Output is correct
62 Correct 14 ms 23808 KB Output is correct
63 Correct 13 ms 23808 KB Output is correct
64 Correct 16 ms 23808 KB Output is correct
65 Correct 115 ms 27768 KB Output is correct
66 Correct 95 ms 27664 KB Output is correct
67 Correct 107 ms 27768 KB Output is correct
68 Correct 95 ms 27792 KB Output is correct
69 Correct 93 ms 27792 KB Output is correct
70 Correct 101 ms 27844 KB Output is correct
71 Correct 96 ms 27768 KB Output is correct
72 Correct 97 ms 27896 KB Output is correct
73 Correct 93 ms 27772 KB Output is correct
74 Correct 95 ms 27824 KB Output is correct
75 Correct 91 ms 27720 KB Output is correct
76 Correct 91 ms 27768 KB Output is correct
77 Correct 99 ms 27808 KB Output is correct
78 Correct 88 ms 27768 KB Output is correct
79 Correct 95 ms 27772 KB Output is correct
80 Correct 93 ms 27768 KB Output is correct
81 Correct 98 ms 27772 KB Output is correct
82 Correct 98 ms 27808 KB Output is correct
83 Correct 97 ms 27748 KB Output is correct
84 Correct 99 ms 27896 KB Output is correct
85 Correct 93 ms 27768 KB Output is correct
86 Correct 100 ms 27896 KB Output is correct
87 Correct 100 ms 27768 KB Output is correct
88 Correct 101 ms 27768 KB Output is correct
89 Correct 105 ms 27772 KB Output is correct
90 Correct 99 ms 27768 KB Output is correct
91 Correct 99 ms 27768 KB Output is correct
92 Correct 101 ms 27768 KB Output is correct
93 Correct 106 ms 27768 KB Output is correct
94 Correct 100 ms 27896 KB Output is correct
95 Correct 106 ms 27768 KB Output is correct
96 Correct 102 ms 27768 KB Output is correct
97 Correct 113 ms 27768 KB Output is correct
98 Correct 102 ms 27768 KB Output is correct
99 Correct 97 ms 27772 KB Output is correct
100 Correct 102 ms 27896 KB Output is correct
101 Correct 99 ms 27852 KB Output is correct
102 Correct 102 ms 27896 KB Output is correct