답안 #261533

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
261533	2020-08-11T20:33:14 Z	mjkocijan	Lamps (JOI19_lamps)	C++14	100 / 100	202 ms	27772 KB

lamp

#include <bits/stdc++.h>
using namespace std;
#define X first
#define Y second
#define pb push_back
typedef long long ll;
typedef pair<ll, ll> ii;
#define MAXN 1001001

int n;
char a[MAXN], b[MAXN];
int dp[MAXN][3][2], reza = MAXN;

int main()
{
	scanf("%d", &n);
	scanf("%s", a);
	scanf("%s", b);
	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] = MAXN;
				for (int l = 0; l < 3; l++) {
					for (int m = 0; m < 2; m++) {//cout << i <<' '<<j<<' '<<k<<'.'<<l<<' '<<m<<','<<dp[i][j][k]<<endl;
						if (i == 0 && (l || m)) continue;//cout<<'.';
						int bk;
						if (j)
							bk = (j - 1) ^ k;
						else
							bk = (a[i] - '0') ^ k;
						if (bk != b[i] - '0') continue;//cout<<'/';
						dp[i][j][k] = min(dp[i][j][k], (i ? dp[i - 1][l][m] : 0) + (j != l && j) * 2 + (k != m));
						if (i == n - 1) reza = min(reza, dp[i][j][k]);
					}
				}
				//cout << i << ' ' <<j <<' ' << k <<'.'<<dp[i][j][k]<<endl;
			}
		}
	}
	//cout << ceil(double(reza) / 2.0) << endl;
	printf("%d\n", (int)ceil(double(reza) / 2.0));
	return 0;
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:16:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
lamp.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", a);
  ~~~~~^~~~~~~~~
lamp.cpp:18:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", b);
  ~~~~~^~~~~~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	0 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	0 ms	384 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	1 ms	384 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	0 ms	384 KB	Output is correct
20	Correct	0 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	0 ms	384 KB	Output is correct
26	Correct	0 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	0 ms	384 KB	Output is correct
31	Correct	0 ms	384 KB	Output is correct
32	Correct	0 ms	384 KB	Output is correct
33	Correct	1 ms	384 KB	Output is correct
34	Correct	0 ms	384 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	0 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	0 ms	384 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	1 ms	384 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	0 ms	384 KB	Output is correct
20	Correct	0 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	0 ms	384 KB	Output is correct
26	Correct	0 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	0 ms	384 KB	Output is correct
31	Correct	0 ms	384 KB	Output is correct
32	Correct	0 ms	384 KB	Output is correct
33	Correct	1 ms	384 KB	Output is correct
34	Correct	0 ms	384 KB	Output is correct
35	Correct	1 ms	384 KB	Output is correct
36	Correct	1 ms	384 KB	Output is correct
37	Correct	1 ms	384 KB	Output is correct
38	Correct	1 ms	384 KB	Output is correct
39	Correct	1 ms	384 KB	Output is correct
40	Correct	1 ms	384 KB	Output is correct
41	Correct	1 ms	384 KB	Output is correct
42	Correct	1 ms	384 KB	Output is correct
43	Correct	1 ms	384 KB	Output is correct
44	Correct	1 ms	384 KB	Output is correct
45	Correct	1 ms	384 KB	Output is correct
46	Correct	1 ms	384 KB	Output is correct
47	Correct	1 ms	384 KB	Output is correct
48	Correct	1 ms	384 KB	Output is correct
49	Correct	1 ms	384 KB	Output is correct
50	Correct	1 ms	384 KB	Output is correct
51	Correct	1 ms	384 KB	Output is correct
52	Correct	1 ms	384 KB	Output is correct
53	Correct	1 ms	384 KB	Output is correct
54	Correct	2 ms	384 KB	Output is correct
55	Correct	1 ms	384 KB	Output is correct
56	Correct	1 ms	384 KB	Output is correct
57	Correct	1 ms	384 KB	Output is correct
58	Correct	1 ms	384 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	182 ms	27728 KB	Output is correct
8	Correct	180 ms	27728 KB	Output is correct
9	Correct	194 ms	27768 KB	Output is correct
10	Correct	181 ms	27680 KB	Output is correct
11	Correct	179 ms	27772 KB	Output is correct
12	Correct	170 ms	27684 KB	Output is correct
13	Correct	176 ms	27768 KB	Output is correct
14	Correct	169 ms	27712 KB	Output is correct

Subtask #4
49.0 / 49.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	0 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	0 ms	384 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	1 ms	384 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	0 ms	384 KB	Output is correct
20	Correct	0 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	0 ms	384 KB	Output is correct
26	Correct	0 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	0 ms	384 KB	Output is correct
31	Correct	0 ms	384 KB	Output is correct
32	Correct	0 ms	384 KB	Output is correct
33	Correct	1 ms	384 KB	Output is correct
34	Correct	0 ms	384 KB	Output is correct
35	Correct	1 ms	384 KB	Output is correct
36	Correct	1 ms	384 KB	Output is correct
37	Correct	1 ms	384 KB	Output is correct
38	Correct	1 ms	384 KB	Output is correct
39	Correct	1 ms	384 KB	Output is correct
40	Correct	1 ms	384 KB	Output is correct
41	Correct	1 ms	384 KB	Output is correct
42	Correct	1 ms	384 KB	Output is correct
43	Correct	1 ms	384 KB	Output is correct
44	Correct	1 ms	384 KB	Output is correct
45	Correct	1 ms	384 KB	Output is correct
46	Correct	1 ms	384 KB	Output is correct
47	Correct	1 ms	384 KB	Output is correct
48	Correct	1 ms	384 KB	Output is correct
49	Correct	1 ms	384 KB	Output is correct
50	Correct	1 ms	384 KB	Output is correct
51	Correct	1 ms	384 KB	Output is correct
52	Correct	1 ms	384 KB	Output is correct
53	Correct	1 ms	384 KB	Output is correct
54	Correct	2 ms	384 KB	Output is correct
55	Correct	1 ms	384 KB	Output is correct
56	Correct	1 ms	384 KB	Output is correct
57	Correct	1 ms	384 KB	Output is correct
58	Correct	1 ms	384 KB	Output is correct
59	Correct	1 ms	384 KB	Output is correct
60	Correct	1 ms	384 KB	Output is correct
61	Correct	1 ms	384 KB	Output is correct
62	Correct	1 ms	384 KB	Output is correct
63	Correct	1 ms	384 KB	Output is correct
64	Correct	1 ms	384 KB	Output is correct
65	Correct	182 ms	27728 KB	Output is correct
66	Correct	180 ms	27728 KB	Output is correct
67	Correct	194 ms	27768 KB	Output is correct
68	Correct	181 ms	27680 KB	Output is correct
69	Correct	179 ms	27772 KB	Output is correct
70	Correct	170 ms	27684 KB	Output is correct
71	Correct	176 ms	27768 KB	Output is correct
72	Correct	169 ms	27712 KB	Output is correct
73	Correct	181 ms	27644 KB	Output is correct
74	Correct	179 ms	27640 KB	Output is correct
75	Correct	177 ms	27640 KB	Output is correct
76	Correct	179 ms	27768 KB	Output is correct
77	Correct	173 ms	27668 KB	Output is correct
78	Correct	173 ms	27768 KB	Output is correct
79	Correct	188 ms	27768 KB	Output is correct
80	Correct	185 ms	27768 KB	Output is correct
81	Correct	177 ms	27768 KB	Output is correct
82	Correct	177 ms	27640 KB	Output is correct
83	Correct	172 ms	27772 KB	Output is correct
84	Correct	169 ms	27768 KB	Output is correct
85	Correct	174 ms	27768 KB	Output is correct
86	Correct	170 ms	27768 KB	Output is correct
87	Correct	180 ms	27768 KB	Output is correct
88	Correct	170 ms	27768 KB	Output is correct
89	Correct	174 ms	27640 KB	Output is correct
90	Correct	170 ms	27656 KB	Output is correct
91	Correct	177 ms	27768 KB	Output is correct
92	Correct	181 ms	27772 KB	Output is correct
93	Correct	177 ms	27768 KB	Output is correct
94	Correct	175 ms	27768 KB	Output is correct
95	Correct	202 ms	27716 KB	Output is correct
96	Correct	180 ms	27760 KB	Output is correct
97	Correct	177 ms	27768 KB	Output is correct
98	Correct	182 ms	27768 KB	Output is correct
99	Correct	182 ms	27768 KB	Output is correct
100	Correct	179 ms	27768 KB	Output is correct
101	Correct	175 ms	27644 KB	Output is correct
102	Correct	178 ms	27640 KB	Output is correct

답안 #261533

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