답안 #110512

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
110512	2019-05-11T05:07:27 Z	AngusRitossa	Lamps (JOI19_lamps)	C++14	100 / 100	226 ms	25948 KB

lamp

#include <bits/stdc++.h>
using namespace std;
int memo[1000010][2], done[1000010][2], a[1000010], b[1000010], n, loopcost[1000010][2];

int main()
{
	scanf("%d", &n);
	for (int i = 0; i < n; i++) 
	{
		char c;
		scanf(" %c", &c);
		a[i] = c-'0';
	}
	for (int i = 0; i < n; i++) 
	{
		char c;
		scanf(" %c", &c);
		b[i] = c-'0';
	}
	for (int i = n-1; i >= 0; i--)
	{
		for (int t = 0; t < 2; t++)
		{
			loopcost[i][t] = 1e9;
			int ans = 1e9;
			if (a[i] == (b[i]^t)) 
			{ 
				ans = min(ans, memo[i+1][t]);
			}
			else ans = min(ans, memo[i+1][!t] + !t); 
			int extracost = 1, isok = 1, istoggled = t;
			if (i != n-1 && b[i+1] == b[i])
			{
				loopcost[i][t] = memo[i+1][t]+1;
				loopcost[i][t] = min(loopcost[i][t], loopcost[i+1][t]);
			}
			else if (i != n-1 && b[i+1] != b[i])
			{
				loopcost[i][t] = memo[i+1][t]+1;
				loopcost[i][t] = min(loopcost[i][t], loopcost[i+1][!t]+!t);
			}
			else
			{
				for (int j = i; j < n; j++)
				{
					if ((b[j] == b[i]) != isok)
					{
						isok = !isok;
						istoggled = !istoggled;
						if (istoggled) extracost++;
					}
					int am = memo[j+1][istoggled]+extracost;
					loopcost[i][t] = min(loopcost[i][t], am);
				}
			}
			ans = min(ans, loopcost[i][t]);
		 	memo[i][t] = ans;
		}
	}
	int ans = memo[0][0];
	printf("%d\n", ans);
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:7:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
lamp.cpp:11:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %c", &c);
   ~~~~~^~~~~~~~~~~
lamp.cpp:17:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %c", &c);
   ~~~~~^~~~~~~~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	3 ms	384 KB	Output is correct
12	Correct	3 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	512 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	3 ms	384 KB	Output is correct
22	Correct	3 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	3 ms	384 KB	Output is correct
25	Correct	2 ms	384 KB	Output is correct
26	Correct	3 ms	384 KB	Output is correct
27	Correct	3 ms	384 KB	Output is correct
28	Correct	2 ms	384 KB	Output is correct
29	Correct	2 ms	384 KB	Output is correct
30	Correct	2 ms	384 KB	Output is correct
31	Correct	3 ms	384 KB	Output is correct
32	Correct	2 ms	384 KB	Output is correct
33	Correct	3 ms	384 KB	Output is correct
34	Correct	3 ms	384 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	3 ms	384 KB	Output is correct
12	Correct	3 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	512 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	3 ms	384 KB	Output is correct
22	Correct	3 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	3 ms	384 KB	Output is correct
25	Correct	2 ms	384 KB	Output is correct
26	Correct	3 ms	384 KB	Output is correct
27	Correct	3 ms	384 KB	Output is correct
28	Correct	2 ms	384 KB	Output is correct
29	Correct	2 ms	384 KB	Output is correct
30	Correct	2 ms	384 KB	Output is correct
31	Correct	3 ms	384 KB	Output is correct
32	Correct	2 ms	384 KB	Output is correct
33	Correct	3 ms	384 KB	Output is correct
34	Correct	3 ms	384 KB	Output is correct
35	Correct	3 ms	384 KB	Output is correct
36	Correct	2 ms	384 KB	Output is correct
37	Correct	2 ms	384 KB	Output is correct
38	Correct	2 ms	384 KB	Output is correct
39	Correct	3 ms	384 KB	Output is correct
40	Correct	2 ms	384 KB	Output is correct
41	Correct	2 ms	384 KB	Output is correct
42	Correct	2 ms	384 KB	Output is correct
43	Correct	3 ms	384 KB	Output is correct
44	Correct	2 ms	384 KB	Output is correct
45	Correct	3 ms	384 KB	Output is correct
46	Correct	3 ms	384 KB	Output is correct
47	Correct	2 ms	384 KB	Output is correct
48	Correct	2 ms	384 KB	Output is correct
49	Correct	2 ms	384 KB	Output is correct
50	Correct	2 ms	384 KB	Output is correct
51	Correct	3 ms	384 KB	Output is correct
52	Correct	3 ms	384 KB	Output is correct
53	Correct	2 ms	384 KB	Output is correct
54	Correct	2 ms	384 KB	Output is correct
55	Correct	2 ms	384 KB	Output is correct
56	Correct	3 ms	384 KB	Output is correct
57	Correct	3 ms	384 KB	Output is correct
58	Correct	2 ms	384 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	139 ms	23800 KB	Output is correct
8	Correct	131 ms	23928 KB	Output is correct
9	Correct	118 ms	25720 KB	Output is correct
10	Correct	144 ms	25720 KB	Output is correct
11	Correct	126 ms	25720 KB	Output is correct
12	Correct	164 ms	25712 KB	Output is correct
13	Correct	153 ms	25752 KB	Output is correct
14	Correct	142 ms	25852 KB	Output is correct

Subtask #4
49.0 / 49.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	3 ms	384 KB	Output is correct
12	Correct	3 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	512 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	3 ms	384 KB	Output is correct
22	Correct	3 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	3 ms	384 KB	Output is correct
25	Correct	2 ms	384 KB	Output is correct
26	Correct	3 ms	384 KB	Output is correct
27	Correct	3 ms	384 KB	Output is correct
28	Correct	2 ms	384 KB	Output is correct
29	Correct	2 ms	384 KB	Output is correct
30	Correct	2 ms	384 KB	Output is correct
31	Correct	3 ms	384 KB	Output is correct
32	Correct	2 ms	384 KB	Output is correct
33	Correct	3 ms	384 KB	Output is correct
34	Correct	3 ms	384 KB	Output is correct
35	Correct	3 ms	384 KB	Output is correct
36	Correct	2 ms	384 KB	Output is correct
37	Correct	2 ms	384 KB	Output is correct
38	Correct	2 ms	384 KB	Output is correct
39	Correct	3 ms	384 KB	Output is correct
40	Correct	2 ms	384 KB	Output is correct
41	Correct	2 ms	384 KB	Output is correct
42	Correct	2 ms	384 KB	Output is correct
43	Correct	3 ms	384 KB	Output is correct
44	Correct	2 ms	384 KB	Output is correct
45	Correct	3 ms	384 KB	Output is correct
46	Correct	3 ms	384 KB	Output is correct
47	Correct	2 ms	384 KB	Output is correct
48	Correct	2 ms	384 KB	Output is correct
49	Correct	2 ms	384 KB	Output is correct
50	Correct	2 ms	384 KB	Output is correct
51	Correct	3 ms	384 KB	Output is correct
52	Correct	3 ms	384 KB	Output is correct
53	Correct	2 ms	384 KB	Output is correct
54	Correct	2 ms	384 KB	Output is correct
55	Correct	2 ms	384 KB	Output is correct
56	Correct	3 ms	384 KB	Output is correct
57	Correct	3 ms	384 KB	Output is correct
58	Correct	2 ms	384 KB	Output is correct
59	Correct	2 ms	384 KB	Output is correct
60	Correct	2 ms	384 KB	Output is correct
61	Correct	2 ms	384 KB	Output is correct
62	Correct	2 ms	384 KB	Output is correct
63	Correct	2 ms	384 KB	Output is correct
64	Correct	2 ms	384 KB	Output is correct
65	Correct	139 ms	23800 KB	Output is correct
66	Correct	131 ms	23928 KB	Output is correct
67	Correct	118 ms	25720 KB	Output is correct
68	Correct	144 ms	25720 KB	Output is correct
69	Correct	126 ms	25720 KB	Output is correct
70	Correct	164 ms	25712 KB	Output is correct
71	Correct	153 ms	25752 KB	Output is correct
72	Correct	142 ms	25852 KB	Output is correct
73	Correct	116 ms	25696 KB	Output is correct
74	Correct	119 ms	25848 KB	Output is correct
75	Correct	129 ms	25720 KB	Output is correct
76	Correct	165 ms	25772 KB	Output is correct
77	Correct	148 ms	25720 KB	Output is correct
78	Correct	145 ms	25720 KB	Output is correct
79	Correct	142 ms	25848 KB	Output is correct
80	Correct	131 ms	25720 KB	Output is correct
81	Correct	123 ms	25868 KB	Output is correct
82	Correct	141 ms	25692 KB	Output is correct
83	Correct	162 ms	25812 KB	Output is correct
84	Correct	152 ms	25848 KB	Output is correct
85	Correct	146 ms	25836 KB	Output is correct
86	Correct	148 ms	25852 KB	Output is correct
87	Correct	138 ms	25948 KB	Output is correct
88	Correct	140 ms	25760 KB	Output is correct
89	Correct	226 ms	25720 KB	Output is correct
90	Correct	167 ms	25848 KB	Output is correct
91	Correct	167 ms	25852 KB	Output is correct
92	Correct	149 ms	25720 KB	Output is correct
93	Correct	172 ms	25800 KB	Output is correct
94	Correct	146 ms	25868 KB	Output is correct
95	Correct	157 ms	25852 KB	Output is correct
96	Correct	139 ms	25720 KB	Output is correct
97	Correct	144 ms	25720 KB	Output is correct
98	Correct	147 ms	25776 KB	Output is correct
99	Correct	170 ms	25796 KB	Output is correct
100	Correct	151 ms	25948 KB	Output is correct
101	Correct	155 ms	25848 KB	Output is correct
102	Correct	160 ms	25908 KB	Output is correct

답안 #110512

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