답안 #554636

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
554636	2022-04-29T02:12:20 Z	pavement	Lamps (JOI19_lamps)	C++17	100 / 100	228 ms	121764 KB

lamp

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
//#define int long long
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define ppb pop_back
#define eb emplace_back
#define g0(a) get<0>(a)
#define g1(a) get<1>(a)
#define g2(a) get<2>(a)
#define g3(a) get<3>(a)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
using db = double;
using ll = long long;
using ld = long double;
using ii = pair<int, int>;
using iii = tuple<int, int, int>;
using iiii = tuple<int, int, int, int>;
template<class key, class value = null_type, class cmp = less<key> >
using ordered_set = tree<key, value, cmp, rb_tree_tag, tree_order_statistics_node_update>;

int N, mem[1000005][3][2];
bool A[1000005], B[1000005];
char C;

int dp(int n, int a, bool b) {
	if (n == N + 1) return (a == 2 ? 0 : 1e9);
	if (mem[n][a][b] != -1) return mem[n][a][b];
	int ret = 1e9;
	bool x = A[n];
	if (a != 2) x = a;
	for (int k = 0; k < 3; k++)
		ret = min(ret, dp(n + 1, k, x != B[n]) + ((k != a) && k != 2));
	mem[n][a][b] = ret + ((x != B[n]) && !b);
	return mem[n][a][b];
}

main() {
	memset(mem, -1, sizeof mem);
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> N;
	for (int i = 1; i <= N; i++) {
		cin >> C;
		A[i] = C == '1';
	}
	for (int i = 1; i <= N; i++) {
		cin >> C;
		B[i] = C == '1';
	}
	cout << min({dp(1, 0, 0) + 1, dp(1, 1, 0) + 1, dp(1, 2, 0)}) << '\n';
}

Compilation message

lamp.cpp:45:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   45 | main() {
      | ^~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	23764 KB	Output is correct
2	Correct	10 ms	23764 KB	Output is correct
3	Correct	12 ms	23720 KB	Output is correct
4	Correct	12 ms	23764 KB	Output is correct
5	Correct	10 ms	23728 KB	Output is correct
6	Correct	9 ms	23764 KB	Output is correct
7	Correct	9 ms	23764 KB	Output is correct
8	Correct	9 ms	23808 KB	Output is correct
9	Correct	9 ms	23728 KB	Output is correct
10	Correct	10 ms	23812 KB	Output is correct
11	Correct	10 ms	23760 KB	Output is correct
12	Correct	10 ms	23764 KB	Output is correct
13	Correct	11 ms	23736 KB	Output is correct
14	Correct	10 ms	23764 KB	Output is correct
15	Correct	10 ms	23764 KB	Output is correct
16	Correct	10 ms	23796 KB	Output is correct
17	Correct	10 ms	23764 KB	Output is correct
18	Correct	10 ms	23776 KB	Output is correct
19	Correct	11 ms	23764 KB	Output is correct
20	Correct	10 ms	23808 KB	Output is correct
21	Correct	10 ms	23764 KB	Output is correct
22	Correct	11 ms	23780 KB	Output is correct
23	Correct	11 ms	23724 KB	Output is correct
24	Correct	9 ms	23764 KB	Output is correct
25	Correct	11 ms	23740 KB	Output is correct
26	Correct	10 ms	23804 KB	Output is correct
27	Correct	10 ms	23764 KB	Output is correct
28	Correct	10 ms	23764 KB	Output is correct
29	Correct	12 ms	23764 KB	Output is correct
30	Correct	10 ms	23764 KB	Output is correct
31	Correct	11 ms	23764 KB	Output is correct
32	Correct	10 ms	23768 KB	Output is correct
33	Correct	11 ms	23764 KB	Output is correct
34	Correct	10 ms	23700 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	23764 KB	Output is correct
2	Correct	10 ms	23764 KB	Output is correct
3	Correct	12 ms	23720 KB	Output is correct
4	Correct	12 ms	23764 KB	Output is correct
5	Correct	10 ms	23728 KB	Output is correct
6	Correct	9 ms	23764 KB	Output is correct
7	Correct	9 ms	23764 KB	Output is correct
8	Correct	9 ms	23808 KB	Output is correct
9	Correct	9 ms	23728 KB	Output is correct
10	Correct	10 ms	23812 KB	Output is correct
11	Correct	10 ms	23760 KB	Output is correct
12	Correct	10 ms	23764 KB	Output is correct
13	Correct	11 ms	23736 KB	Output is correct
14	Correct	10 ms	23764 KB	Output is correct
15	Correct	10 ms	23764 KB	Output is correct
16	Correct	10 ms	23796 KB	Output is correct
17	Correct	10 ms	23764 KB	Output is correct
18	Correct	10 ms	23776 KB	Output is correct
19	Correct	11 ms	23764 KB	Output is correct
20	Correct	10 ms	23808 KB	Output is correct
21	Correct	10 ms	23764 KB	Output is correct
22	Correct	11 ms	23780 KB	Output is correct
23	Correct	11 ms	23724 KB	Output is correct
24	Correct	9 ms	23764 KB	Output is correct
25	Correct	11 ms	23740 KB	Output is correct
26	Correct	10 ms	23804 KB	Output is correct
27	Correct	10 ms	23764 KB	Output is correct
28	Correct	10 ms	23764 KB	Output is correct
29	Correct	12 ms	23764 KB	Output is correct
30	Correct	10 ms	23764 KB	Output is correct
31	Correct	11 ms	23764 KB	Output is correct
32	Correct	10 ms	23768 KB	Output is correct
33	Correct	11 ms	23764 KB	Output is correct
34	Correct	10 ms	23700 KB	Output is correct
35	Correct	10 ms	23896 KB	Output is correct
36	Correct	10 ms	23892 KB	Output is correct
37	Correct	11 ms	23972 KB	Output is correct
38	Correct	10 ms	23892 KB	Output is correct
39	Correct	9 ms	23892 KB	Output is correct
40	Correct	11 ms	23892 KB	Output is correct
41	Correct	11 ms	24012 KB	Output is correct
42	Correct	11 ms	23940 KB	Output is correct
43	Correct	11 ms	23896 KB	Output is correct
44	Correct	10 ms	23892 KB	Output is correct
45	Correct	13 ms	24020 KB	Output is correct
46	Correct	13 ms	23896 KB	Output is correct
47	Correct	10 ms	23936 KB	Output is correct
48	Correct	11 ms	23892 KB	Output is correct
49	Correct	10 ms	24008 KB	Output is correct
50	Correct	10 ms	24012 KB	Output is correct
51	Correct	10 ms	23892 KB	Output is correct
52	Correct	11 ms	23892 KB	Output is correct
53	Correct	10 ms	24020 KB	Output is correct
54	Correct	10 ms	23972 KB	Output is correct
55	Correct	10 ms	23892 KB	Output is correct
56	Correct	10 ms	23944 KB	Output is correct
57	Correct	10 ms	23892 KB	Output is correct
58	Correct	14 ms	23952 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	9 ms	23764 KB	Output is correct
3	Correct	10 ms	23740 KB	Output is correct
4	Correct	10 ms	23812 KB	Output is correct
5	Correct	10 ms	23720 KB	Output is correct
6	Correct	9 ms	23764 KB	Output is correct
7	Correct	190 ms	119736 KB	Output is correct
8	Correct	195 ms	121636 KB	Output is correct
9	Correct	191 ms	121748 KB	Output is correct
10	Correct	190 ms	121736 KB	Output is correct
11	Correct	193 ms	121556 KB	Output is correct
12	Correct	202 ms	121640 KB	Output is correct
13	Correct	189 ms	121572 KB	Output is correct
14	Correct	228 ms	121720 KB	Output is correct

Subtask #4
49.0 / 49.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	23764 KB	Output is correct
2	Correct	10 ms	23764 KB	Output is correct
3	Correct	12 ms	23720 KB	Output is correct
4	Correct	12 ms	23764 KB	Output is correct
5	Correct	10 ms	23728 KB	Output is correct
6	Correct	9 ms	23764 KB	Output is correct
7	Correct	9 ms	23764 KB	Output is correct
8	Correct	9 ms	23808 KB	Output is correct
9	Correct	9 ms	23728 KB	Output is correct
10	Correct	10 ms	23812 KB	Output is correct
11	Correct	10 ms	23760 KB	Output is correct
12	Correct	10 ms	23764 KB	Output is correct
13	Correct	11 ms	23736 KB	Output is correct
14	Correct	10 ms	23764 KB	Output is correct
15	Correct	10 ms	23764 KB	Output is correct
16	Correct	10 ms	23796 KB	Output is correct
17	Correct	10 ms	23764 KB	Output is correct
18	Correct	10 ms	23776 KB	Output is correct
19	Correct	11 ms	23764 KB	Output is correct
20	Correct	10 ms	23808 KB	Output is correct
21	Correct	10 ms	23764 KB	Output is correct
22	Correct	11 ms	23780 KB	Output is correct
23	Correct	11 ms	23724 KB	Output is correct
24	Correct	9 ms	23764 KB	Output is correct
25	Correct	11 ms	23740 KB	Output is correct
26	Correct	10 ms	23804 KB	Output is correct
27	Correct	10 ms	23764 KB	Output is correct
28	Correct	10 ms	23764 KB	Output is correct
29	Correct	12 ms	23764 KB	Output is correct
30	Correct	10 ms	23764 KB	Output is correct
31	Correct	11 ms	23764 KB	Output is correct
32	Correct	10 ms	23768 KB	Output is correct
33	Correct	11 ms	23764 KB	Output is correct
34	Correct	10 ms	23700 KB	Output is correct
35	Correct	10 ms	23896 KB	Output is correct
36	Correct	10 ms	23892 KB	Output is correct
37	Correct	11 ms	23972 KB	Output is correct
38	Correct	10 ms	23892 KB	Output is correct
39	Correct	9 ms	23892 KB	Output is correct
40	Correct	11 ms	23892 KB	Output is correct
41	Correct	11 ms	24012 KB	Output is correct
42	Correct	11 ms	23940 KB	Output is correct
43	Correct	11 ms	23896 KB	Output is correct
44	Correct	10 ms	23892 KB	Output is correct
45	Correct	13 ms	24020 KB	Output is correct
46	Correct	13 ms	23896 KB	Output is correct
47	Correct	10 ms	23936 KB	Output is correct
48	Correct	11 ms	23892 KB	Output is correct
49	Correct	10 ms	24008 KB	Output is correct
50	Correct	10 ms	24012 KB	Output is correct
51	Correct	10 ms	23892 KB	Output is correct
52	Correct	11 ms	23892 KB	Output is correct
53	Correct	10 ms	24020 KB	Output is correct
54	Correct	10 ms	23972 KB	Output is correct
55	Correct	10 ms	23892 KB	Output is correct
56	Correct	10 ms	23944 KB	Output is correct
57	Correct	10 ms	23892 KB	Output is correct
58	Correct	14 ms	23952 KB	Output is correct
59	Correct	10 ms	23764 KB	Output is correct
60	Correct	9 ms	23764 KB	Output is correct
61	Correct	10 ms	23740 KB	Output is correct
62	Correct	10 ms	23812 KB	Output is correct
63	Correct	10 ms	23720 KB	Output is correct
64	Correct	9 ms	23764 KB	Output is correct
65	Correct	190 ms	119736 KB	Output is correct
66	Correct	195 ms	121636 KB	Output is correct
67	Correct	191 ms	121748 KB	Output is correct
68	Correct	190 ms	121736 KB	Output is correct
69	Correct	193 ms	121556 KB	Output is correct
70	Correct	202 ms	121640 KB	Output is correct
71	Correct	189 ms	121572 KB	Output is correct
72	Correct	228 ms	121720 KB	Output is correct
73	Correct	186 ms	121580 KB	Output is correct
74	Correct	192 ms	121572 KB	Output is correct
75	Correct	201 ms	121552 KB	Output is correct
76	Correct	193 ms	121552 KB	Output is correct
77	Correct	194 ms	121536 KB	Output is correct
78	Correct	197 ms	121764 KB	Output is correct
79	Correct	184 ms	121584 KB	Output is correct
80	Correct	206 ms	121636 KB	Output is correct
81	Correct	202 ms	121744 KB	Output is correct
82	Correct	186 ms	121548 KB	Output is correct
83	Correct	198 ms	121644 KB	Output is correct
84	Correct	220 ms	121676 KB	Output is correct
85	Correct	196 ms	121548 KB	Output is correct
86	Correct	186 ms	121640 KB	Output is correct
87	Correct	193 ms	121620 KB	Output is correct
88	Correct	187 ms	121548 KB	Output is correct
89	Correct	184 ms	121648 KB	Output is correct
90	Correct	184 ms	121644 KB	Output is correct
91	Correct	181 ms	121640 KB	Output is correct
92	Correct	187 ms	121560 KB	Output is correct
93	Correct	184 ms	121648 KB	Output is correct
94	Correct	186 ms	121756 KB	Output is correct
95	Correct	192 ms	121600 KB	Output is correct
96	Correct	187 ms	121564 KB	Output is correct
97	Correct	183 ms	121528 KB	Output is correct
98	Correct	188 ms	121676 KB	Output is correct
99	Correct	184 ms	121636 KB	Output is correct
100	Correct	189 ms	121548 KB	Output is correct
101	Correct	191 ms	121572 KB	Output is correct
102	Correct	187 ms	121568 KB	Output is correct

답안 #554636

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