답안 #105076

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
105076	2019-04-10T13:45:01 Z	Just_Solve_The_Problem	Lamps (JOI19_lamps)	C++11	100 / 100	187 ms	28344 KB

lamp

#include <bits/stdc++.h>

using namespace std;

const int N = (int)1e6 + 7;

string a, b;
int n;
int dp[N][3][2];
/*
dp[pos][operation][xor]
operation
0 = off
1 = on
2 = do not touch
*/

main() {
	memset(dp, 63, sizeof dp);
	scanf("%d", &n);
	cin >> a >> b;
	a = " " + a;
	b = " " + b;
	dp[0][2][0] = 0;
	for (int i = 1; i <= n; i++) {
		for (int j = 0; j < 3; j++) {
			if (b[i] - '0' == j) {
				dp[i][j][0] = min(dp[i][j][0], dp[i - 1][j][0]);
				dp[i][j][0] = min(dp[i][j][0], dp[i - 1][j][1]);
				for (int l = 0; l < 3; l++) {
					dp[i][j][0] = min(dp[i][j][0], dp[i - 1][l][0] + 1);
					dp[i][j][0] = min(dp[i][j][0], dp[i - 1][l][1] + 1);
				}
			}
			if (b[i] - '0' == (j ^ 1)) {
				dp[i][j][1] = min(dp[i][j][1], dp[i - 1][j][1]);
				dp[i][j][1] = min(dp[i][j][1], dp[i - 1][j][0] + 1);
				for (int l = 0; l < 3; l++) {
					dp[i][j][1] = min(dp[i][j][1], dp[i - 1][l][1] + 1);
				}
			}
			if (j == 2 && b[i] == a[i]) {
				for (int l = 0; l < 3; l++) {
					dp[i][j][0] = min(dp[i][j][0], dp[i - 1][l][0]);
					dp[i][j][0] = min(dp[i][j][0], dp[i - 1][l][1]);
				}
			}
			if (j == 2 && b[i] != a[i]) {
				for (int l = 0; l < 3; l++) {
					dp[i][j][1] = min(dp[i][j][1], dp[i - 1][l][0] + 1);
					dp[i][j][1] = min(dp[i][j][1], dp[i - 1][l][1]);
				}
			}
		}
	}
	int ans = dp[0][1][0];
	for (int i = 0; i < 3; i++) {
		for (int j = 0; j < 2; j++) {
			ans = min(ans, dp[n][i][j]);
		}
	}
	printf("%d\n", ans);
}

Compilation message

lamp.cpp:18:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
lamp.cpp: In function 'int main()':
lamp.cpp:20:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	23808 KB	Output is correct
2	Correct	23 ms	23808 KB	Output is correct
3	Correct	23 ms	23800 KB	Output is correct
4	Correct	24 ms	23808 KB	Output is correct
5	Correct	23 ms	23772 KB	Output is correct
6	Correct	24 ms	23808 KB	Output is correct
7	Correct	21 ms	23800 KB	Output is correct
8	Correct	20 ms	23808 KB	Output is correct
9	Correct	22 ms	23808 KB	Output is correct
10	Correct	23 ms	23800 KB	Output is correct
11	Correct	23 ms	23808 KB	Output is correct
12	Correct	25 ms	23784 KB	Output is correct
13	Correct	22 ms	23800 KB	Output is correct
14	Correct	23 ms	23780 KB	Output is correct
15	Correct	23 ms	23808 KB	Output is correct
16	Correct	24 ms	23800 KB	Output is correct
17	Correct	23 ms	23800 KB	Output is correct
18	Correct	22 ms	23800 KB	Output is correct
19	Correct	22 ms	23808 KB	Output is correct
20	Correct	27 ms	23936 KB	Output is correct
21	Correct	24 ms	23808 KB	Output is correct
22	Correct	23 ms	23808 KB	Output is correct
23	Correct	26 ms	23800 KB	Output is correct
24	Correct	22 ms	23808 KB	Output is correct
25	Correct	21 ms	23808 KB	Output is correct
26	Correct	23 ms	23808 KB	Output is correct
27	Correct	23 ms	23808 KB	Output is correct
28	Correct	24 ms	23808 KB	Output is correct
29	Correct	22 ms	23808 KB	Output is correct
30	Correct	26 ms	23800 KB	Output is correct
31	Correct	22 ms	23800 KB	Output is correct
32	Correct	24 ms	23808 KB	Output is correct
33	Correct	21 ms	23800 KB	Output is correct
34	Correct	23 ms	23772 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	23808 KB	Output is correct
2	Correct	23 ms	23808 KB	Output is correct
3	Correct	23 ms	23800 KB	Output is correct
4	Correct	24 ms	23808 KB	Output is correct
5	Correct	23 ms	23772 KB	Output is correct
6	Correct	24 ms	23808 KB	Output is correct
7	Correct	21 ms	23800 KB	Output is correct
8	Correct	20 ms	23808 KB	Output is correct
9	Correct	22 ms	23808 KB	Output is correct
10	Correct	23 ms	23800 KB	Output is correct
11	Correct	23 ms	23808 KB	Output is correct
12	Correct	25 ms	23784 KB	Output is correct
13	Correct	22 ms	23800 KB	Output is correct
14	Correct	23 ms	23780 KB	Output is correct
15	Correct	23 ms	23808 KB	Output is correct
16	Correct	24 ms	23800 KB	Output is correct
17	Correct	23 ms	23800 KB	Output is correct
18	Correct	22 ms	23800 KB	Output is correct
19	Correct	22 ms	23808 KB	Output is correct
20	Correct	27 ms	23936 KB	Output is correct
21	Correct	24 ms	23808 KB	Output is correct
22	Correct	23 ms	23808 KB	Output is correct
23	Correct	26 ms	23800 KB	Output is correct
24	Correct	22 ms	23808 KB	Output is correct
25	Correct	21 ms	23808 KB	Output is correct
26	Correct	23 ms	23808 KB	Output is correct
27	Correct	23 ms	23808 KB	Output is correct
28	Correct	24 ms	23808 KB	Output is correct
29	Correct	22 ms	23808 KB	Output is correct
30	Correct	26 ms	23800 KB	Output is correct
31	Correct	22 ms	23800 KB	Output is correct
32	Correct	24 ms	23808 KB	Output is correct
33	Correct	21 ms	23800 KB	Output is correct
34	Correct	23 ms	23772 KB	Output is correct
35	Correct	23 ms	23840 KB	Output is correct
36	Correct	26 ms	23752 KB	Output is correct
37	Correct	24 ms	23884 KB	Output is correct
38	Correct	25 ms	23808 KB	Output is correct
39	Correct	23 ms	23808 KB	Output is correct
40	Correct	23 ms	23808 KB	Output is correct
41	Correct	27 ms	23808 KB	Output is correct
42	Correct	24 ms	23808 KB	Output is correct
43	Correct	23 ms	23800 KB	Output is correct
44	Correct	23 ms	23808 KB	Output is correct
45	Correct	27 ms	23800 KB	Output is correct
46	Correct	19 ms	23808 KB	Output is correct
47	Correct	24 ms	23780 KB	Output is correct
48	Correct	23 ms	23808 KB	Output is correct
49	Correct	27 ms	23852 KB	Output is correct
50	Correct	27 ms	23808 KB	Output is correct
51	Correct	22 ms	23928 KB	Output is correct
52	Correct	25 ms	23808 KB	Output is correct
53	Correct	23 ms	23936 KB	Output is correct
54	Correct	21 ms	23808 KB	Output is correct
55	Correct	23 ms	23936 KB	Output is correct
56	Correct	23 ms	23808 KB	Output is correct
57	Correct	23 ms	23808 KB	Output is correct
58	Correct	22 ms	23800 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	23800 KB	Output is correct
2	Correct	22 ms	23800 KB	Output is correct
3	Correct	22 ms	23808 KB	Output is correct
4	Correct	23 ms	23808 KB	Output is correct
5	Correct	23 ms	23808 KB	Output is correct
6	Correct	22 ms	23808 KB	Output is correct
7	Correct	144 ms	28108 KB	Output is correct
8	Correct	110 ms	28268 KB	Output is correct
9	Correct	126 ms	28312 KB	Output is correct
10	Correct	107 ms	28268 KB	Output is correct
11	Correct	101 ms	28268 KB	Output is correct
12	Correct	108 ms	28344 KB	Output is correct
13	Correct	114 ms	28228 KB	Output is correct
14	Correct	124 ms	28268 KB	Output is correct

Subtask #4
49.0 / 49.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	23808 KB	Output is correct
2	Correct	23 ms	23808 KB	Output is correct
3	Correct	23 ms	23800 KB	Output is correct
4	Correct	24 ms	23808 KB	Output is correct
5	Correct	23 ms	23772 KB	Output is correct
6	Correct	24 ms	23808 KB	Output is correct
7	Correct	21 ms	23800 KB	Output is correct
8	Correct	20 ms	23808 KB	Output is correct
9	Correct	22 ms	23808 KB	Output is correct
10	Correct	23 ms	23800 KB	Output is correct
11	Correct	23 ms	23808 KB	Output is correct
12	Correct	25 ms	23784 KB	Output is correct
13	Correct	22 ms	23800 KB	Output is correct
14	Correct	23 ms	23780 KB	Output is correct
15	Correct	23 ms	23808 KB	Output is correct
16	Correct	24 ms	23800 KB	Output is correct
17	Correct	23 ms	23800 KB	Output is correct
18	Correct	22 ms	23800 KB	Output is correct
19	Correct	22 ms	23808 KB	Output is correct
20	Correct	27 ms	23936 KB	Output is correct
21	Correct	24 ms	23808 KB	Output is correct
22	Correct	23 ms	23808 KB	Output is correct
23	Correct	26 ms	23800 KB	Output is correct
24	Correct	22 ms	23808 KB	Output is correct
25	Correct	21 ms	23808 KB	Output is correct
26	Correct	23 ms	23808 KB	Output is correct
27	Correct	23 ms	23808 KB	Output is correct
28	Correct	24 ms	23808 KB	Output is correct
29	Correct	22 ms	23808 KB	Output is correct
30	Correct	26 ms	23800 KB	Output is correct
31	Correct	22 ms	23800 KB	Output is correct
32	Correct	24 ms	23808 KB	Output is correct
33	Correct	21 ms	23800 KB	Output is correct
34	Correct	23 ms	23772 KB	Output is correct
35	Correct	23 ms	23840 KB	Output is correct
36	Correct	26 ms	23752 KB	Output is correct
37	Correct	24 ms	23884 KB	Output is correct
38	Correct	25 ms	23808 KB	Output is correct
39	Correct	23 ms	23808 KB	Output is correct
40	Correct	23 ms	23808 KB	Output is correct
41	Correct	27 ms	23808 KB	Output is correct
42	Correct	24 ms	23808 KB	Output is correct
43	Correct	23 ms	23800 KB	Output is correct
44	Correct	23 ms	23808 KB	Output is correct
45	Correct	27 ms	23800 KB	Output is correct
46	Correct	19 ms	23808 KB	Output is correct
47	Correct	24 ms	23780 KB	Output is correct
48	Correct	23 ms	23808 KB	Output is correct
49	Correct	27 ms	23852 KB	Output is correct
50	Correct	27 ms	23808 KB	Output is correct
51	Correct	22 ms	23928 KB	Output is correct
52	Correct	25 ms	23808 KB	Output is correct
53	Correct	23 ms	23936 KB	Output is correct
54	Correct	21 ms	23808 KB	Output is correct
55	Correct	23 ms	23936 KB	Output is correct
56	Correct	23 ms	23808 KB	Output is correct
57	Correct	23 ms	23808 KB	Output is correct
58	Correct	22 ms	23800 KB	Output is correct
59	Correct	23 ms	23800 KB	Output is correct
60	Correct	22 ms	23800 KB	Output is correct
61	Correct	22 ms	23808 KB	Output is correct
62	Correct	23 ms	23808 KB	Output is correct
63	Correct	23 ms	23808 KB	Output is correct
64	Correct	22 ms	23808 KB	Output is correct
65	Correct	144 ms	28108 KB	Output is correct
66	Correct	110 ms	28268 KB	Output is correct
67	Correct	126 ms	28312 KB	Output is correct
68	Correct	107 ms	28268 KB	Output is correct
69	Correct	101 ms	28268 KB	Output is correct
70	Correct	108 ms	28344 KB	Output is correct
71	Correct	114 ms	28228 KB	Output is correct
72	Correct	124 ms	28268 KB	Output is correct
73	Correct	122 ms	28236 KB	Output is correct
74	Correct	115 ms	28060 KB	Output is correct
75	Correct	124 ms	27980 KB	Output is correct
76	Correct	99 ms	28008 KB	Output is correct
77	Correct	107 ms	28008 KB	Output is correct
78	Correct	127 ms	28008 KB	Output is correct
79	Correct	120 ms	28032 KB	Output is correct
80	Correct	120 ms	27984 KB	Output is correct
81	Correct	116 ms	27988 KB	Output is correct
82	Correct	110 ms	28300 KB	Output is correct
83	Correct	107 ms	28092 KB	Output is correct
84	Correct	113 ms	28008 KB	Output is correct
85	Correct	123 ms	27940 KB	Output is correct
86	Correct	114 ms	28080 KB	Output is correct
87	Correct	157 ms	28108 KB	Output is correct
88	Correct	187 ms	27924 KB	Output is correct
89	Correct	119 ms	28008 KB	Output is correct
90	Correct	163 ms	27980 KB	Output is correct
91	Correct	160 ms	28008 KB	Output is correct
92	Correct	128 ms	28008 KB	Output is correct
93	Correct	110 ms	28004 KB	Output is correct
94	Correct	148 ms	28012 KB	Output is correct
95	Correct	131 ms	28036 KB	Output is correct
96	Correct	114 ms	27832 KB	Output is correct
97	Correct	118 ms	28008 KB	Output is correct
98	Correct	115 ms	28056 KB	Output is correct
99	Correct	145 ms	27996 KB	Output is correct
100	Correct	159 ms	28028 KB	Output is correct
101	Correct	135 ms	27980 KB	Output is correct
102	Correct	116 ms	28120 KB	Output is correct

답안 #105076

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