oj.uz

Submission #364645

# Submission time Handle Problem Language Result Execution time Memory
364645 2021-02-09T16:22:14 Z parsabahrami Lamps (JOI19_lamps) C++17
100 / 100
 78 ms 23020 KB 
// Call my Name and Save me from The Dark
#include <bits/stdc++.h>
 
using namespace std;

typedef long long int ll;
typedef pair<int, int> pii;
 
#define SZ(x)                       (int) x.size()
#define F                           first
#define S                           second

const int N = 1e6 + 10, MOD = 1e9 + 7;
int dp[N][3], A[N], B[N], n; char S[N];

int main() {
    scanf("%d", &n);
    scanf("%s", S + 1);
    for (int i = 1; i <= n; i++) A[i] = S[i] - '0';
    for (int i = 0; i < N; i++) dp[i][0] = dp[i][1] = dp[i][2] = MOD;
    scanf("%s", S + 1);
    dp[0][2] = 0;
    for (int i = 1; i <= n; i++) B[i] = S[i] - '0';
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < 3; j++) {
            for (int k = 0; k < 3; k++) {
                int x = dp[i][j];
                if (j != k && k != 2) x++;
                int a = (j == 0 ? 0 : (j == 1 ? 1 : A[i]));
                int b = (k == 0 ? 0 : (k == 1 ? 1 : A[i + 1]));
                if ((!i || a == B[i]) && b != B[i + 1]) x++;
                dp[i + 1][k] = min(dp[i + 1][k], x);
            }
        }
    } 
    printf("%d\n", min({dp[n][0], dp[n][1], dp[n][2]}));
    return 0;
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   17 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
lamp.cpp:18:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   18 |     scanf("%s", S + 1);
      |     ~~~~~^~~~~~~~~~~~~
lamp.cpp:21:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   21 |     scanf("%s", S + 1);
      |     ~~~~~^~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12140 KB Output is correct
2 Correct 8 ms 12140 KB Output is correct
3 Correct 8 ms 12140 KB Output is correct
4 Correct 10 ms 12140 KB Output is correct
5 Correct 8 ms 12140 KB Output is correct
6 Correct 8 ms 12140 KB Output is correct
7 Correct 8 ms 12140 KB Output is correct
8 Correct 8 ms 12140 KB Output is correct
9 Correct 8 ms 12140 KB Output is correct
10 Correct 8 ms 12140 KB Output is correct
11 Correct 9 ms 12140 KB Output is correct
12 Correct 8 ms 12140 KB Output is correct
13 Correct 8 ms 12140 KB Output is correct
14 Correct 8 ms 12140 KB Output is correct
15 Correct 10 ms 12288 KB Output is correct
16 Correct 8 ms 12140 KB Output is correct
17 Correct 9 ms 12140 KB Output is correct
18 Correct 9 ms 12140 KB Output is correct
19 Correct 8 ms 12140 KB Output is correct
20 Correct 8 ms 12140 KB Output is correct
21 Correct 8 ms 12140 KB Output is correct
22 Correct 9 ms 12140 KB Output is correct
23 Correct 8 ms 12140 KB Output is correct
24 Correct 10 ms 12140 KB Output is correct
25 Correct 10 ms 12140 KB Output is correct
26 Correct 8 ms 12140 KB Output is correct
27 Correct 8 ms 12140 KB Output is correct
28 Correct 8 ms 12140 KB Output is correct
29 Correct 8 ms 12012 KB Output is correct
30 Correct 8 ms 12140 KB Output is correct
31 Correct 8 ms 12140 KB Output is correct
32 Correct 8 ms 12140 KB Output is correct
33 Correct 8 ms 12140 KB Output is correct
34 Correct 8 ms 12140 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12140 KB Output is correct
2 Correct 8 ms 12140 KB Output is correct
3 Correct 8 ms 12140 KB Output is correct
4 Correct 10 ms 12140 KB Output is correct
5 Correct 8 ms 12140 KB Output is correct
6 Correct 8 ms 12140 KB Output is correct
7 Correct 8 ms 12140 KB Output is correct
8 Correct 8 ms 12140 KB Output is correct
9 Correct 8 ms 12140 KB Output is correct
10 Correct 8 ms 12140 KB Output is correct
11 Correct 9 ms 12140 KB Output is correct
12 Correct 8 ms 12140 KB Output is correct
13 Correct 8 ms 12140 KB Output is correct
14 Correct 8 ms 12140 KB Output is correct
15 Correct 10 ms 12288 KB Output is correct
16 Correct 8 ms 12140 KB Output is correct
17 Correct 9 ms 12140 KB Output is correct
18 Correct 9 ms 12140 KB Output is correct
19 Correct 8 ms 12140 KB Output is correct
20 Correct 8 ms 12140 KB Output is correct
21 Correct 8 ms 12140 KB Output is correct
22 Correct 9 ms 12140 KB Output is correct
23 Correct 8 ms 12140 KB Output is correct
24 Correct 10 ms 12140 KB Output is correct
25 Correct 10 ms 12140 KB Output is correct
26 Correct 8 ms 12140 KB Output is correct
27 Correct 8 ms 12140 KB Output is correct
28 Correct 8 ms 12140 KB Output is correct
29 Correct 8 ms 12012 KB Output is correct
30 Correct 8 ms 12140 KB Output is correct
31 Correct 8 ms 12140 KB Output is correct
32 Correct 8 ms 12140 KB Output is correct
33 Correct 8 ms 12140 KB Output is correct
34 Correct 8 ms 12140 KB Output is correct
35 Correct 10 ms 12140 KB Output is correct
36 Correct 8 ms 12140 KB Output is correct
37 Correct 9 ms 12140 KB Output is correct
38 Correct 10 ms 12140 KB Output is correct
39 Correct 8 ms 12140 KB Output is correct
40 Correct 8 ms 12140 KB Output is correct
41 Correct 8 ms 12140 KB Output is correct
42 Correct 8 ms 12140 KB Output is correct
43 Correct 8 ms 12140 KB Output is correct
44 Correct 8 ms 12140 KB Output is correct
45 Correct 9 ms 12140 KB Output is correct
46 Correct 8 ms 12140 KB Output is correct
47 Correct 8 ms 12140 KB Output is correct
48 Correct 8 ms 12140 KB Output is correct
49 Correct 8 ms 12140 KB Output is correct
50 Correct 8 ms 12140 KB Output is correct
51 Correct 8 ms 12140 KB Output is correct
52 Correct 8 ms 12140 KB Output is correct
53 Correct 8 ms 12140 KB Output is correct
54 Correct 8 ms 12140 KB Output is correct
55 Correct 8 ms 12140 KB Output is correct
56 Correct 8 ms 12140 KB Output is correct
57 Correct 8 ms 12140 KB Output is correct
58 Correct 8 ms 12020 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12140 KB Output is correct
2 Correct 8 ms 12140 KB Output is correct
3 Correct 9 ms 12140 KB Output is correct
4 Correct 10 ms 12140 KB Output is correct
5 Correct 9 ms 12140 KB Output is correct
6 Correct 9 ms 12140 KB Output is correct
7 Correct 62 ms 22892 KB Output is correct
8 Correct 60 ms 22892 KB Output is correct
9 Correct 60 ms 22892 KB Output is correct
10 Correct 62 ms 22892 KB Output is correct
11 Correct 61 ms 23020 KB Output is correct
12 Correct 59 ms 22892 KB Output is correct
13 Correct 62 ms 22892 KB Output is correct
14 Correct 61 ms 22892 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12140 KB Output is correct
2 Correct 8 ms 12140 KB Output is correct
3 Correct 8 ms 12140 KB Output is correct
4 Correct 10 ms 12140 KB Output is correct
5 Correct 8 ms 12140 KB Output is correct
6 Correct 8 ms 12140 KB Output is correct
7 Correct 8 ms 12140 KB Output is correct
8 Correct 8 ms 12140 KB Output is correct
9 Correct 8 ms 12140 KB Output is correct
10 Correct 8 ms 12140 KB Output is correct
11 Correct 9 ms 12140 KB Output is correct
12 Correct 8 ms 12140 KB Output is correct
13 Correct 8 ms 12140 KB Output is correct
14 Correct 8 ms 12140 KB Output is correct
15 Correct 10 ms 12288 KB Output is correct
16 Correct 8 ms 12140 KB Output is correct
17 Correct 9 ms 12140 KB Output is correct
18 Correct 9 ms 12140 KB Output is correct
19 Correct 8 ms 12140 KB Output is correct
20 Correct 8 ms 12140 KB Output is correct
21 Correct 8 ms 12140 KB Output is correct
22 Correct 9 ms 12140 KB Output is correct
23 Correct 8 ms 12140 KB Output is correct
24 Correct 10 ms 12140 KB Output is correct
25 Correct 10 ms 12140 KB Output is correct
26 Correct 8 ms 12140 KB Output is correct
27 Correct 8 ms 12140 KB Output is correct
28 Correct 8 ms 12140 KB Output is correct
29 Correct 8 ms 12012 KB Output is correct
30 Correct 8 ms 12140 KB Output is correct
31 Correct 8 ms 12140 KB Output is correct
32 Correct 8 ms 12140 KB Output is correct
33 Correct 8 ms 12140 KB Output is correct
34 Correct 8 ms 12140 KB Output is correct
35 Correct 10 ms 12140 KB Output is correct
36 Correct 8 ms 12140 KB Output is correct
37 Correct 9 ms 12140 KB Output is correct
38 Correct 10 ms 12140 KB Output is correct
39 Correct 8 ms 12140 KB Output is correct
40 Correct 8 ms 12140 KB Output is correct
41 Correct 8 ms 12140 KB Output is correct
42 Correct 8 ms 12140 KB Output is correct
43 Correct 8 ms 12140 KB Output is correct
44 Correct 8 ms 12140 KB Output is correct
45 Correct 9 ms 12140 KB Output is correct
46 Correct 8 ms 12140 KB Output is correct
47 Correct 8 ms 12140 KB Output is correct
48 Correct 8 ms 12140 KB Output is correct
49 Correct 8 ms 12140 KB Output is correct
50 Correct 8 ms 12140 KB Output is correct
51 Correct 8 ms 12140 KB Output is correct
52 Correct 8 ms 12140 KB Output is correct
53 Correct 8 ms 12140 KB Output is correct
54 Correct 8 ms 12140 KB Output is correct
55 Correct 8 ms 12140 KB Output is correct
56 Correct 8 ms 12140 KB Output is correct
57 Correct 8 ms 12140 KB Output is correct
58 Correct 8 ms 12020 KB Output is correct
59 Correct 8 ms 12140 KB Output is correct
60 Correct 8 ms 12140 KB Output is correct
61 Correct 9 ms 12140 KB Output is correct
62 Correct 10 ms 12140 KB Output is correct
63 Correct 9 ms 12140 KB Output is correct
64 Correct 9 ms 12140 KB Output is correct
65 Correct 62 ms 22892 KB Output is correct
66 Correct 60 ms 22892 KB Output is correct
67 Correct 60 ms 22892 KB Output is correct
68 Correct 62 ms 22892 KB Output is correct
69 Correct 61 ms 23020 KB Output is correct
70 Correct 59 ms 22892 KB Output is correct
71 Correct 62 ms 22892 KB Output is correct
72 Correct 61 ms 22892 KB Output is correct
73 Correct 58 ms 22912 KB Output is correct
74 Correct 62 ms 22892 KB Output is correct
75 Correct 58 ms 22892 KB Output is correct
76 Correct 60 ms 22892 KB Output is correct
77 Correct 60 ms 22892 KB Output is correct
78 Correct 59 ms 22892 KB Output is correct
79 Correct 61 ms 22892 KB Output is correct
80 Correct 72 ms 22892 KB Output is correct
81 Correct 67 ms 22892 KB Output is correct
82 Correct 60 ms 22892 KB Output is correct
83 Correct 63 ms 22892 KB Output is correct
84 Correct 78 ms 22892 KB Output is correct
85 Correct 64 ms 22900 KB Output is correct
86 Correct 62 ms 22892 KB Output is correct
87 Correct 63 ms 22892 KB Output is correct
88 Correct 62 ms 22892 KB Output is correct
89 Correct 64 ms 22892 KB Output is correct
90 Correct 76 ms 22892 KB Output is correct
91 Correct 66 ms 22892 KB Output is correct
92 Correct 66 ms 22908 KB Output is correct
93 Correct 68 ms 22892 KB Output is correct
94 Correct 69 ms 22892 KB Output is correct
95 Correct 69 ms 22892 KB Output is correct
96 Correct 68 ms 22892 KB Output is correct
97 Correct 69 ms 22892 KB Output is correct
98 Correct 69 ms 22892 KB Output is correct
99 Correct 70 ms 22892 KB Output is correct
100 Correct 69 ms 22892 KB Output is correct
101 Correct 67 ms 22892 KB Output is correct
102 Correct 70 ms 22892 KB Output is correct