답안 #364645

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
364645	2021-02-09T16:22:14 Z	parsabahrami	Lamps (JOI19_lamps)	C++17	100 / 100	78 ms	23020 KB

lamp

// 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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

답안 #364645

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 41.0 / 41.0

Subtask #3 4.0 / 4.0

Subtask #4 49.0 / 49.0

Subtask #1
6.0 / 6.0

Subtask #2
41.0 / 41.0

Subtask #3
4.0 / 4.0

Subtask #4
49.0 / 49.0