oj.uz

Submission #166865

# Submission time Handle Problem Language Result Execution time Memory
166865 2019-12-04T12:52:01 Z Akashi Lamps (JOI19_lamps) C++14
100 / 100
 132 ms 27840 KB 
#include <bits/stdc++.h>
using namespace std;

const int INF = 1e9;

int n;
char a[1000005];
char b[1000005];
int d[1000005][3][2];

int main()
{
    scanf("%d", &n);
    scanf("%s", a + 1);
    scanf("%s", b + 1);

    for(int j = 0; j < 3 ; ++j)
        for(int t = 0; t < 2 ; ++t)
            d[0][j][t] = INF;
    d[0][0][0] = 0;

    for(int i = 1; i <= n ; ++i){
        for(int j = 0; j < 3 ; ++j)
            for(int t = 0; t < 2 ; ++t)
                d[i][j][t] = INF;

        for(int j = 0; j < 3 ; ++j){
            for(int t = 0; t < 2 ; ++t){
                int val = 0;
                if(j == 0) val = a[i] - '0';
                else val = j - 1;
                if(t == 1) val = 1 - val;

                if(val != b[i] - '0') continue ;
                for(int j2 = 0; j2 < 3 ; ++j2)
                    for(int t2 = 0; t2 < 2 ; ++t2)
                        d[i][j][t] = min(d[i][j][t], d[i - 1][j2][t2] + ((j != j2) & (j > 0)) + ((t != t2) & (t > 0)));
            }
        }
    }

    int Sol = INF;
    for(int j = 0; j < 3 ; ++j)
        for(int t = 0; t < 2 ; ++t)
            Sol = min(Sol, d[n][j][t]);

    printf("%d", Sol);

    return 0;
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
lamp.cpp:14:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s", a + 1);
     ~~~~~^~~~~~~~~~~~~
lamp.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s", b + 1);
     ~~~~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 380 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 380 KB Output is correct
16 Correct 2 ms 380 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 380 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 380 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 424 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 380 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 380 KB Output is correct
16 Correct 2 ms 380 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 380 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 380 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 424 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 424 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 380 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 2 ms 376 KB Output is correct
55 Correct 2 ms 376 KB Output is correct
56 Correct 2 ms 376 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 2 ms 376 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 76 ms 27760 KB Output is correct
8 Correct 99 ms 27684 KB Output is correct
9 Correct 85 ms 27740 KB Output is correct
10 Correct 76 ms 27768 KB Output is correct
11 Correct 102 ms 27716 KB Output is correct
12 Correct 74 ms 27740 KB Output is correct
13 Correct 73 ms 27808 KB Output is correct
14 Correct 73 ms 27704 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 380 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 380 KB Output is correct
16 Correct 2 ms 380 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 380 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 380 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 424 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 424 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 380 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 2 ms 376 KB Output is correct
55 Correct 2 ms 376 KB Output is correct
56 Correct 2 ms 376 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 2 ms 376 KB Output is correct
59 Correct 2 ms 376 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 2 ms 376 KB Output is correct
62 Correct 2 ms 376 KB Output is correct
63 Correct 2 ms 376 KB Output is correct
64 Correct 2 ms 376 KB Output is correct
65 Correct 76 ms 27760 KB Output is correct
66 Correct 99 ms 27684 KB Output is correct
67 Correct 85 ms 27740 KB Output is correct
68 Correct 76 ms 27768 KB Output is correct
69 Correct 102 ms 27716 KB Output is correct
70 Correct 74 ms 27740 KB Output is correct
71 Correct 73 ms 27808 KB Output is correct
72 Correct 73 ms 27704 KB Output is correct
73 Correct 73 ms 27740 KB Output is correct
74 Correct 74 ms 27840 KB Output is correct
75 Correct 73 ms 27768 KB Output is correct
76 Correct 73 ms 27644 KB Output is correct
77 Correct 73 ms 27640 KB Output is correct
78 Correct 72 ms 27788 KB Output is correct
79 Correct 75 ms 27768 KB Output is correct
80 Correct 73 ms 27760 KB Output is correct
81 Correct 74 ms 27768 KB Output is correct
82 Correct 74 ms 27768 KB Output is correct
83 Correct 81 ms 27772 KB Output is correct
84 Correct 80 ms 27640 KB Output is correct
85 Correct 80 ms 27768 KB Output is correct
86 Correct 79 ms 27740 KB Output is correct
87 Correct 80 ms 27768 KB Output is correct
88 Correct 80 ms 27740 KB Output is correct
89 Correct 132 ms 27640 KB Output is correct
90 Correct 81 ms 27760 KB Output is correct
91 Correct 83 ms 27740 KB Output is correct
92 Correct 84 ms 27640 KB Output is correct
93 Correct 84 ms 27768 KB Output is correct
94 Correct 85 ms 27752 KB Output is correct
95 Correct 84 ms 27768 KB Output is correct
96 Correct 85 ms 27768 KB Output is correct
97 Correct 84 ms 27768 KB Output is correct
98 Correct 84 ms 27768 KB Output is correct
99 Correct 84 ms 27768 KB Output is correct
100 Correct 84 ms 27768 KB Output is correct
101 Correct 85 ms 27768 KB Output is correct
102 Correct 85 ms 27768 KB Output is correct