답안 #623834

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
623834	2022-08-06T15:32:50 Z	Arnch	Lamps (JOI19_lamps)	C++17	100 / 100	78 ms	35224 KB

lamp

// oooo
/*
 har chi delet mikhad bebar ~
 gitar o ba khodet nabar! ~
 ;Amoo_Hasan;
*/

#include<bits/stdc++.h>
//#pragma GCC optimize("O3,no-stack-protector,unroll-loops")
//#pragma GCC target("avx2,fma")

using namespace std;

typedef long long ll;
typedef long double ld;

#define Sz(x) int((x).size())
#define All(x) (x).begin(), (x).end()
#define wtf(x) cout<<#x <<" : " <<x <<endl

constexpr ll inf = 1e18, N = 1e6 + 10, mod = 1e9 + 7, pr = 1000696969;

ll dp[N][3];
int A[N], B[N];

int main() {
    ios :: sync_with_stdio(0), cin.tie(0);

	int n; cin >>n;
	string a, b; cin >>a >>b;

	for(int i = 0; i < n; i++) {
		A[i + 1] = (a[i] - '0') + 1;
		B[i + 1] = (b[i] - '0') + 1;
	}

	memset(dp, 63, sizeof(dp));
	dp[0][0] = 0;

	for(int i = 1; i <= n; i++) {
		for(int j = 0; j < 3; j++) {
			for(int k = 0; k < 3; k++) {
				if(j != 0 && j == k) {
					if(k == B[i - 1] && j != B[i]) {
						dp[i][j] = min(dp[i][j], dp[i - 1][k] + 2);
						continue;
					}
					dp[i][j] = min(dp[i][j], dp[i - 1][k]);
					continue;
				}
				if(j == 0) {
					if(k == 0) {
						if(A[i] != B[i] && A[i - 1] == B[i - 1]) {
							dp[i][j] = min(dp[i][j], dp[i - 1][k] + 2);
							continue;
						}
						dp[i][j] = min(dp[i][j], dp[i - 1][k]);
						continue;
					}
					if(A[i] != B[i] && B[i - 1] == k) {
						dp[i][j] = min(dp[i][j], dp[i - 1][k] + 2);
						continue;
					}
					dp[i][j] = min(dp[i][j], dp[i - 1][k]);
					continue;
				}
				if(k == 0) {
					if(A[i - 1] == B[i - 1] && j != B[i]) {
						dp[i][j] = min(dp[i][j], dp[i - 1][k] + 4);
						continue;
					}
					dp[i][j] = min(dp[i][j], dp[i - 1][k] + 2);
					continue;
				}
				if(k == B[i - 1] && j != B[i]) {
					dp[i][j] = min(dp[i][j], dp[i - 1][k] + 4);
					continue;
				}
				dp[i][j] = min(dp[i][j], dp[i - 1][k] + 2);
				continue;
			}
		}
	}

	/*for(int i = 1; i <= n; i++) {
		for(int j = 0; j < 3; j++) {
			cout<<"^^" <<i <<" " <<j <<" " <<dp[i][j] / 2 <<endl;
		}
	}*/

	ll ans = inf;
	for(int i = 0; i < 3; i++) ans = min(ans, dp[n][i]);

	cout<<ans / 2;

    return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	23764 KB	Output is correct
2	Correct	12 ms	23728 KB	Output is correct
3	Correct	10 ms	23732 KB	Output is correct
4	Correct	11 ms	23764 KB	Output is correct
5	Correct	12 ms	23728 KB	Output is correct
6	Correct	11 ms	23792 KB	Output is correct
7	Correct	10 ms	23764 KB	Output is correct
8	Correct	10 ms	23764 KB	Output is correct
9	Correct	10 ms	23724 KB	Output is correct
10	Correct	10 ms	23796 KB	Output is correct
11	Correct	9 ms	23764 KB	Output is correct
12	Correct	11 ms	23824 KB	Output is correct
13	Correct	11 ms	23764 KB	Output is correct
14	Correct	10 ms	23764 KB	Output is correct
15	Correct	10 ms	23764 KB	Output is correct
16	Correct	12 ms	23788 KB	Output is correct
17	Correct	10 ms	23764 KB	Output is correct
18	Correct	10 ms	23764 KB	Output is correct
19	Correct	10 ms	23804 KB	Output is correct
20	Correct	10 ms	23764 KB	Output is correct
21	Correct	11 ms	23764 KB	Output is correct
22	Correct	12 ms	23824 KB	Output is correct
23	Correct	11 ms	23756 KB	Output is correct
24	Correct	11 ms	23764 KB	Output is correct
25	Correct	10 ms	23764 KB	Output is correct
26	Correct	11 ms	23752 KB	Output is correct
27	Correct	10 ms	23712 KB	Output is correct
28	Correct	10 ms	23764 KB	Output is correct
29	Correct	10 ms	23764 KB	Output is correct
30	Correct	9 ms	23716 KB	Output is correct
31	Correct	10 ms	23764 KB	Output is correct
32	Correct	11 ms	23784 KB	Output is correct
33	Correct	10 ms	23764 KB	Output is correct
34	Correct	10 ms	23752 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	23764 KB	Output is correct
2	Correct	12 ms	23728 KB	Output is correct
3	Correct	10 ms	23732 KB	Output is correct
4	Correct	11 ms	23764 KB	Output is correct
5	Correct	12 ms	23728 KB	Output is correct
6	Correct	11 ms	23792 KB	Output is correct
7	Correct	10 ms	23764 KB	Output is correct
8	Correct	10 ms	23764 KB	Output is correct
9	Correct	10 ms	23724 KB	Output is correct
10	Correct	10 ms	23796 KB	Output is correct
11	Correct	9 ms	23764 KB	Output is correct
12	Correct	11 ms	23824 KB	Output is correct
13	Correct	11 ms	23764 KB	Output is correct
14	Correct	10 ms	23764 KB	Output is correct
15	Correct	10 ms	23764 KB	Output is correct
16	Correct	12 ms	23788 KB	Output is correct
17	Correct	10 ms	23764 KB	Output is correct
18	Correct	10 ms	23764 KB	Output is correct
19	Correct	10 ms	23804 KB	Output is correct
20	Correct	10 ms	23764 KB	Output is correct
21	Correct	11 ms	23764 KB	Output is correct
22	Correct	12 ms	23824 KB	Output is correct
23	Correct	11 ms	23756 KB	Output is correct
24	Correct	11 ms	23764 KB	Output is correct
25	Correct	10 ms	23764 KB	Output is correct
26	Correct	11 ms	23752 KB	Output is correct
27	Correct	10 ms	23712 KB	Output is correct
28	Correct	10 ms	23764 KB	Output is correct
29	Correct	10 ms	23764 KB	Output is correct
30	Correct	9 ms	23716 KB	Output is correct
31	Correct	10 ms	23764 KB	Output is correct
32	Correct	11 ms	23784 KB	Output is correct
33	Correct	10 ms	23764 KB	Output is correct
34	Correct	10 ms	23752 KB	Output is correct
35	Correct	12 ms	23764 KB	Output is correct
36	Correct	10 ms	23764 KB	Output is correct
37	Correct	10 ms	23756 KB	Output is correct
38	Correct	10 ms	23796 KB	Output is correct
39	Correct	10 ms	23756 KB	Output is correct
40	Correct	10 ms	23764 KB	Output is correct
41	Correct	11 ms	23756 KB	Output is correct
42	Correct	10 ms	23832 KB	Output is correct
43	Correct	11 ms	23764 KB	Output is correct
44	Correct	10 ms	23764 KB	Output is correct
45	Correct	10 ms	23764 KB	Output is correct
46	Correct	10 ms	23764 KB	Output is correct
47	Correct	10 ms	23828 KB	Output is correct
48	Correct	11 ms	23764 KB	Output is correct
49	Correct	11 ms	23736 KB	Output is correct
50	Correct	10 ms	23764 KB	Output is correct
51	Correct	10 ms	23824 KB	Output is correct
52	Correct	10 ms	23764 KB	Output is correct
53	Correct	10 ms	23752 KB	Output is correct
54	Correct	10 ms	23764 KB	Output is correct
55	Correct	10 ms	23724 KB	Output is correct
56	Correct	10 ms	23832 KB	Output is correct
57	Correct	10 ms	23772 KB	Output is correct
58	Correct	10 ms	23804 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	23764 KB	Output is correct
2	Correct	10 ms	23764 KB	Output is correct
3	Correct	11 ms	23780 KB	Output is correct
4	Correct	11 ms	23764 KB	Output is correct
5	Correct	10 ms	23764 KB	Output is correct
6	Correct	10 ms	23764 KB	Output is correct
7	Correct	39 ms	33724 KB	Output is correct
8	Correct	42 ms	33676 KB	Output is correct
9	Correct	44 ms	33672 KB	Output is correct
10	Correct	42 ms	33700 KB	Output is correct
11	Correct	46 ms	33700 KB	Output is correct
12	Correct	42 ms	33632 KB	Output is correct
13	Correct	41 ms	33700 KB	Output is correct
14	Correct	43 ms	33688 KB	Output is correct

Subtask #4
49.0 / 49.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	23764 KB	Output is correct
2	Correct	12 ms	23728 KB	Output is correct
3	Correct	10 ms	23732 KB	Output is correct
4	Correct	11 ms	23764 KB	Output is correct
5	Correct	12 ms	23728 KB	Output is correct
6	Correct	11 ms	23792 KB	Output is correct
7	Correct	10 ms	23764 KB	Output is correct
8	Correct	10 ms	23764 KB	Output is correct
9	Correct	10 ms	23724 KB	Output is correct
10	Correct	10 ms	23796 KB	Output is correct
11	Correct	9 ms	23764 KB	Output is correct
12	Correct	11 ms	23824 KB	Output is correct
13	Correct	11 ms	23764 KB	Output is correct
14	Correct	10 ms	23764 KB	Output is correct
15	Correct	10 ms	23764 KB	Output is correct
16	Correct	12 ms	23788 KB	Output is correct
17	Correct	10 ms	23764 KB	Output is correct
18	Correct	10 ms	23764 KB	Output is correct
19	Correct	10 ms	23804 KB	Output is correct
20	Correct	10 ms	23764 KB	Output is correct
21	Correct	11 ms	23764 KB	Output is correct
22	Correct	12 ms	23824 KB	Output is correct
23	Correct	11 ms	23756 KB	Output is correct
24	Correct	11 ms	23764 KB	Output is correct
25	Correct	10 ms	23764 KB	Output is correct
26	Correct	11 ms	23752 KB	Output is correct
27	Correct	10 ms	23712 KB	Output is correct
28	Correct	10 ms	23764 KB	Output is correct
29	Correct	10 ms	23764 KB	Output is correct
30	Correct	9 ms	23716 KB	Output is correct
31	Correct	10 ms	23764 KB	Output is correct
32	Correct	11 ms	23784 KB	Output is correct
33	Correct	10 ms	23764 KB	Output is correct
34	Correct	10 ms	23752 KB	Output is correct
35	Correct	12 ms	23764 KB	Output is correct
36	Correct	10 ms	23764 KB	Output is correct
37	Correct	10 ms	23756 KB	Output is correct
38	Correct	10 ms	23796 KB	Output is correct
39	Correct	10 ms	23756 KB	Output is correct
40	Correct	10 ms	23764 KB	Output is correct
41	Correct	11 ms	23756 KB	Output is correct
42	Correct	10 ms	23832 KB	Output is correct
43	Correct	11 ms	23764 KB	Output is correct
44	Correct	10 ms	23764 KB	Output is correct
45	Correct	10 ms	23764 KB	Output is correct
46	Correct	10 ms	23764 KB	Output is correct
47	Correct	10 ms	23828 KB	Output is correct
48	Correct	11 ms	23764 KB	Output is correct
49	Correct	11 ms	23736 KB	Output is correct
50	Correct	10 ms	23764 KB	Output is correct
51	Correct	10 ms	23824 KB	Output is correct
52	Correct	10 ms	23764 KB	Output is correct
53	Correct	10 ms	23752 KB	Output is correct
54	Correct	10 ms	23764 KB	Output is correct
55	Correct	10 ms	23724 KB	Output is correct
56	Correct	10 ms	23832 KB	Output is correct
57	Correct	10 ms	23772 KB	Output is correct
58	Correct	10 ms	23804 KB	Output is correct
59	Correct	10 ms	23764 KB	Output is correct
60	Correct	10 ms	23764 KB	Output is correct
61	Correct	11 ms	23780 KB	Output is correct
62	Correct	11 ms	23764 KB	Output is correct
63	Correct	10 ms	23764 KB	Output is correct
64	Correct	10 ms	23764 KB	Output is correct
65	Correct	39 ms	33724 KB	Output is correct
66	Correct	42 ms	33676 KB	Output is correct
67	Correct	44 ms	33672 KB	Output is correct
68	Correct	42 ms	33700 KB	Output is correct
69	Correct	46 ms	33700 KB	Output is correct
70	Correct	42 ms	33632 KB	Output is correct
71	Correct	41 ms	33700 KB	Output is correct
72	Correct	43 ms	33688 KB	Output is correct
73	Correct	45 ms	35104 KB	Output is correct
74	Correct	46 ms	35104 KB	Output is correct
75	Correct	42 ms	35124 KB	Output is correct
76	Correct	41 ms	35128 KB	Output is correct
77	Correct	42 ms	35124 KB	Output is correct
78	Correct	45 ms	35224 KB	Output is correct
79	Correct	44 ms	35224 KB	Output is correct
80	Correct	44 ms	35064 KB	Output is correct
81	Correct	46 ms	35120 KB	Output is correct
82	Correct	46 ms	35044 KB	Output is correct
83	Correct	49 ms	35184 KB	Output is correct
84	Correct	50 ms	35012 KB	Output is correct
85	Correct	48 ms	35064 KB	Output is correct
86	Correct	48 ms	35132 KB	Output is correct
87	Correct	52 ms	35076 KB	Output is correct
88	Correct	54 ms	35104 KB	Output is correct
89	Correct	48 ms	35140 KB	Output is correct
90	Correct	48 ms	35128 KB	Output is correct
91	Correct	50 ms	35124 KB	Output is correct
92	Correct	55 ms	35104 KB	Output is correct
93	Correct	54 ms	35148 KB	Output is correct
94	Correct	52 ms	35160 KB	Output is correct
95	Correct	51 ms	35096 KB	Output is correct
96	Correct	52 ms	35128 KB	Output is correct
97	Correct	56 ms	35192 KB	Output is correct
98	Correct	78 ms	35036 KB	Output is correct
99	Correct	55 ms	35108 KB	Output is correct
100	Correct	53 ms	35096 KB	Output is correct
101	Correct	55 ms	35132 KB	Output is correct
102	Correct	52 ms	35132 KB	Output is correct

답안 #623834

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