답안 #575467

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
575467	2022-06-10T16:36:31 Z	_karan_gandhi	Colors (BOI20_colors)	C++17	9 / 100	2 ms	336 KB

Colors

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define all(v) v.begin(), v.end()
#define endl '\n'
#define pl(var) " [" << #var << ": " << (var) << "] "

template<typename A, typename B> ostream& operator<<(ostream &cout, pair<A, B> const &p) { return cout << "[" << p.first << ", " << p.second << "]"; }
template<typename A> ostream& operator<<(ostream &cout, vector<A> const &v) { cout << "["; for(int i = 0; i < (int)v.size(); i++) {if (i) cout << ", "; cout << v[i];} return cout << "]";}

ll int n;

void solve() {
	cin >> n;

	assert(n <= 64);

	cout << "? 1" << endl;
	cout.flush();
	int s; cin >> s;

	int hi = n, lo = 2;
	int prev = 1;

	for (int i = 0; i < n - 1; i++) {
		if (i % 2 == 0) {
			cout << "? " << hi-- << endl;
			cout.flush();
			cin >> s;

			if (i == 0 && !s) {
				cout << "= " << n << endl;
				return;
			}

			if (!s) {
				cout << "= " << (abs(prev - (hi + 2))) << endl;
				return;
			}
			prev = hi + 1;
		} else {
			cout << "? " << lo++ << endl;
			cout.flush();
			cin >> s;

			if (!s) {
				cout << "= " << (abs(prev - (lo - 2))) << endl;
				return;
			}
			prev = lo - 1;
		}
	}

	// assert(0);
	cout << "= 1" << endl;
}

int main() {
	// ios::sync_with_stdio(false);
	// cin.tie(nullptr);

	int T = 1;
	// cin >> T;
	while (T--) 
		solve();

	return 0;
}

Subtask #1

9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	208 KB	OK (5 queries)
2	Correct	1 ms	208 KB	OK (6 queries)
3	Correct	1 ms	208 KB	OK (10 queries)
4	Correct	1 ms	208 KB	OK (26 queries)
5	Correct	1 ms	208 KB	OK (13 queries)
6	Correct	1 ms	208 KB	OK (26 queries)
7	Correct	1 ms	208 KB	OK (17 queries)
8	Correct	1 ms	208 KB	OK (7 queries)
9	Correct	0 ms	208 KB	OK (9 queries)
10	Correct	1 ms	208 KB	OK (11 queries)
11	Correct	0 ms	208 KB	OK (4 queries)
12	Correct	1 ms	208 KB	OK (5 queries)
13	Correct	1 ms	208 KB	OK (11 queries)
14	Correct	1 ms	208 KB	OK (16 queries)
15	Correct	1 ms	208 KB	OK (11 queries)
16	Correct	2 ms	208 KB	OK (34 queries)
17	Correct	1 ms	208 KB	OK (2 queries)
18	Correct	1 ms	208 KB	OK (16 queries)
19	Correct	1 ms	208 KB	OK (3 queries)
20	Correct	1 ms	208 KB	OK (31 queries)
21	Correct	1 ms	208 KB	OK (9 queries)
22	Correct	0 ms	208 KB	OK (2 queries)
23	Correct	0 ms	208 KB	OK (2 queries)
24	Correct	0 ms	208 KB	OK (2 queries)
25	Correct	0 ms	208 KB	OK (3 queries)
26	Correct	1 ms	208 KB	OK (3 queries)
27	Correct	0 ms	208 KB	OK (2 queries)
28	Correct	0 ms	208 KB	OK (3 queries)
29	Correct	0 ms	208 KB	OK (4 queries)
30	Correct	0 ms	208 KB	OK (4 queries)
31	Correct	1 ms	208 KB	OK (2 queries)
32	Correct	1 ms	208 KB	OK (3 queries)
33	Correct	0 ms	208 KB	OK (4 queries)
34	Correct	1 ms	208 KB	OK (5 queries)
35	Correct	0 ms	208 KB	OK (5 queries)
36	Correct	0 ms	208 KB	OK (2 queries)
37	Correct	0 ms	208 KB	OK (3 queries)
38	Correct	0 ms	208 KB	OK (4 queries)
39	Correct	0 ms	208 KB	OK (5 queries)
40	Correct	1 ms	208 KB	OK (6 queries)
41	Correct	1 ms	208 KB	OK (6 queries)
42	Correct	0 ms	208 KB	OK (2 queries)
43	Correct	0 ms	208 KB	OK (3 queries)
44	Correct	0 ms	208 KB	OK (4 queries)
45	Correct	1 ms	208 KB	OK (5 queries)
46	Correct	1 ms	208 KB	OK (6 queries)
47	Correct	0 ms	208 KB	OK (7 queries)
48	Correct	1 ms	208 KB	OK (7 queries)
49	Correct	0 ms	208 KB	OK (2 queries)
50	Correct	0 ms	208 KB	OK (3 queries)
51	Correct	0 ms	208 KB	OK (4 queries)
52	Correct	0 ms	208 KB	OK (5 queries)
53	Correct	1 ms	208 KB	OK (6 queries)
54	Correct	1 ms	208 KB	OK (7 queries)
55	Correct	0 ms	208 KB	OK (8 queries)
56	Correct	1 ms	208 KB	OK (8 queries)
57	Correct	0 ms	208 KB	OK (3 queries)
58	Correct	0 ms	208 KB	OK (2 queries)
59	Correct	0 ms	208 KB	OK (3 queries)
60	Correct	0 ms	208 KB	OK (2 queries)
61	Correct	1 ms	208 KB	OK (63 queries)
62	Correct	0 ms	208 KB	OK (2 queries)
63	Correct	1 ms	208 KB	OK (63 queries)
64	Correct	0 ms	208 KB	OK (3 queries)
65	Correct	1 ms	208 KB	OK (62 queries)
66	Correct	0 ms	208 KB	OK (4 queries)
67	Correct	0 ms	208 KB	OK (61 queries)
68	Correct	1 ms	208 KB	OK (5 queries)
69	Correct	1 ms	208 KB	OK (60 queries)
70	Correct	0 ms	208 KB	OK (6 queries)

Subtask #2

0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	208 KB	OK (5 queries)
2	Correct	1 ms	208 KB	OK (6 queries)
3	Correct	1 ms	208 KB	OK (10 queries)
4	Correct	1 ms	208 KB	OK (26 queries)
5	Correct	1 ms	208 KB	OK (13 queries)
6	Correct	1 ms	208 KB	OK (26 queries)
7	Correct	1 ms	208 KB	OK (17 queries)
8	Correct	1 ms	208 KB	OK (7 queries)
9	Correct	0 ms	208 KB	OK (9 queries)
10	Correct	1 ms	208 KB	OK (11 queries)
11	Correct	0 ms	208 KB	OK (4 queries)
12	Correct	1 ms	208 KB	OK (5 queries)
13	Correct	1 ms	208 KB	OK (11 queries)
14	Correct	1 ms	208 KB	OK (16 queries)
15	Correct	1 ms	208 KB	OK (11 queries)
16	Correct	2 ms	208 KB	OK (34 queries)
17	Correct	1 ms	208 KB	OK (2 queries)
18	Correct	1 ms	208 KB	OK (16 queries)
19	Correct	1 ms	208 KB	OK (3 queries)
20	Correct	1 ms	208 KB	OK (31 queries)
21	Correct	1 ms	208 KB	OK (9 queries)
22	Correct	0 ms	208 KB	OK (2 queries)
23	Correct	0 ms	208 KB	OK (2 queries)
24	Correct	0 ms	208 KB	OK (2 queries)
25	Correct	0 ms	208 KB	OK (3 queries)
26	Correct	1 ms	208 KB	OK (3 queries)
27	Correct	0 ms	208 KB	OK (2 queries)
28	Correct	0 ms	208 KB	OK (3 queries)
29	Correct	0 ms	208 KB	OK (4 queries)
30	Correct	0 ms	208 KB	OK (4 queries)
31	Correct	1 ms	208 KB	OK (2 queries)
32	Correct	1 ms	208 KB	OK (3 queries)
33	Correct	0 ms	208 KB	OK (4 queries)
34	Correct	1 ms	208 KB	OK (5 queries)
35	Correct	0 ms	208 KB	OK (5 queries)
36	Correct	0 ms	208 KB	OK (2 queries)
37	Correct	0 ms	208 KB	OK (3 queries)
38	Correct	0 ms	208 KB	OK (4 queries)
39	Correct	0 ms	208 KB	OK (5 queries)
40	Correct	1 ms	208 KB	OK (6 queries)
41	Correct	1 ms	208 KB	OK (6 queries)
42	Correct	0 ms	208 KB	OK (2 queries)
43	Correct	0 ms	208 KB	OK (3 queries)
44	Correct	0 ms	208 KB	OK (4 queries)
45	Correct	1 ms	208 KB	OK (5 queries)
46	Correct	1 ms	208 KB	OK (6 queries)
47	Correct	0 ms	208 KB	OK (7 queries)
48	Correct	1 ms	208 KB	OK (7 queries)
49	Correct	0 ms	208 KB	OK (2 queries)
50	Correct	0 ms	208 KB	OK (3 queries)
51	Correct	0 ms	208 KB	OK (4 queries)
52	Correct	0 ms	208 KB	OK (5 queries)
53	Correct	1 ms	208 KB	OK (6 queries)
54	Correct	1 ms	208 KB	OK (7 queries)
55	Correct	0 ms	208 KB	OK (8 queries)
56	Correct	1 ms	208 KB	OK (8 queries)
57	Correct	0 ms	208 KB	OK (3 queries)
58	Correct	0 ms	208 KB	OK (2 queries)
59	Correct	0 ms	208 KB	OK (3 queries)
60	Correct	0 ms	208 KB	OK (2 queries)
61	Correct	1 ms	208 KB	OK (63 queries)
62	Correct	0 ms	208 KB	OK (2 queries)
63	Correct	1 ms	208 KB	OK (63 queries)
64	Correct	0 ms	208 KB	OK (3 queries)
65	Correct	1 ms	208 KB	OK (62 queries)
66	Correct	0 ms	208 KB	OK (4 queries)
67	Correct	0 ms	208 KB	OK (61 queries)
68	Correct	1 ms	208 KB	OK (5 queries)
69	Correct	1 ms	208 KB	OK (60 queries)
70	Correct	0 ms	208 KB	OK (6 queries)
71	Runtime error	1 ms	336 KB	Execution killed with signal 6
72	Halted	0 ms	0 KB	-

Subtask #3

0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	208 KB	OK (5 queries)
2	Correct	1 ms	208 KB	OK (6 queries)
3	Correct	1 ms	208 KB	OK (10 queries)
4	Correct	1 ms	208 KB	OK (26 queries)
5	Correct	1 ms	208 KB	OK (13 queries)
6	Correct	1 ms	208 KB	OK (26 queries)
7	Correct	1 ms	208 KB	OK (17 queries)
8	Correct	1 ms	208 KB	OK (7 queries)
9	Correct	0 ms	208 KB	OK (9 queries)
10	Correct	1 ms	208 KB	OK (11 queries)
11	Correct	0 ms	208 KB	OK (4 queries)
12	Correct	1 ms	208 KB	OK (5 queries)
13	Correct	1 ms	208 KB	OK (11 queries)
14	Correct	1 ms	208 KB	OK (16 queries)
15	Correct	1 ms	208 KB	OK (11 queries)
16	Correct	2 ms	208 KB	OK (34 queries)
17	Correct	1 ms	208 KB	OK (2 queries)
18	Correct	1 ms	208 KB	OK (16 queries)
19	Correct	1 ms	208 KB	OK (3 queries)
20	Correct	1 ms	208 KB	OK (31 queries)
21	Correct	1 ms	208 KB	OK (9 queries)
22	Correct	0 ms	208 KB	OK (2 queries)
23	Correct	0 ms	208 KB	OK (2 queries)
24	Correct	0 ms	208 KB	OK (2 queries)
25	Correct	0 ms	208 KB	OK (3 queries)
26	Correct	1 ms	208 KB	OK (3 queries)
27	Correct	0 ms	208 KB	OK (2 queries)
28	Correct	0 ms	208 KB	OK (3 queries)
29	Correct	0 ms	208 KB	OK (4 queries)
30	Correct	0 ms	208 KB	OK (4 queries)
31	Correct	1 ms	208 KB	OK (2 queries)
32	Correct	1 ms	208 KB	OK (3 queries)
33	Correct	0 ms	208 KB	OK (4 queries)
34	Correct	1 ms	208 KB	OK (5 queries)
35	Correct	0 ms	208 KB	OK (5 queries)
36	Correct	0 ms	208 KB	OK (2 queries)
37	Correct	0 ms	208 KB	OK (3 queries)
38	Correct	0 ms	208 KB	OK (4 queries)
39	Correct	0 ms	208 KB	OK (5 queries)
40	Correct	1 ms	208 KB	OK (6 queries)
41	Correct	1 ms	208 KB	OK (6 queries)
42	Correct	0 ms	208 KB	OK (2 queries)
43	Correct	0 ms	208 KB	OK (3 queries)
44	Correct	0 ms	208 KB	OK (4 queries)
45	Correct	1 ms	208 KB	OK (5 queries)
46	Correct	1 ms	208 KB	OK (6 queries)
47	Correct	0 ms	208 KB	OK (7 queries)
48	Correct	1 ms	208 KB	OK (7 queries)
49	Correct	0 ms	208 KB	OK (2 queries)
50	Correct	0 ms	208 KB	OK (3 queries)
51	Correct	0 ms	208 KB	OK (4 queries)
52	Correct	0 ms	208 KB	OK (5 queries)
53	Correct	1 ms	208 KB	OK (6 queries)
54	Correct	1 ms	208 KB	OK (7 queries)
55	Correct	0 ms	208 KB	OK (8 queries)
56	Correct	1 ms	208 KB	OK (8 queries)
57	Correct	0 ms	208 KB	OK (3 queries)
58	Correct	0 ms	208 KB	OK (2 queries)
59	Correct	0 ms	208 KB	OK (3 queries)
60	Correct	0 ms	208 KB	OK (2 queries)
61	Correct	1 ms	208 KB	OK (63 queries)
62	Correct	0 ms	208 KB	OK (2 queries)
63	Correct	1 ms	208 KB	OK (63 queries)
64	Correct	0 ms	208 KB	OK (3 queries)
65	Correct	1 ms	208 KB	OK (62 queries)
66	Correct	0 ms	208 KB	OK (4 queries)
67	Correct	0 ms	208 KB	OK (61 queries)
68	Correct	1 ms	208 KB	OK (5 queries)
69	Correct	1 ms	208 KB	OK (60 queries)
70	Correct	0 ms	208 KB	OK (6 queries)
71	Runtime error	1 ms	336 KB	Execution killed with signal 6
72	Halted	0 ms	0 KB	-

Subtask #4

0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	208 KB	OK (5 queries)
2	Correct	1 ms	208 KB	OK (6 queries)
3	Correct	1 ms	208 KB	OK (10 queries)
4	Correct	1 ms	208 KB	OK (26 queries)
5	Correct	1 ms	208 KB	OK (13 queries)
6	Correct	1 ms	208 KB	OK (26 queries)
7	Correct	1 ms	208 KB	OK (17 queries)
8	Correct	1 ms	208 KB	OK (7 queries)
9	Correct	0 ms	208 KB	OK (9 queries)
10	Correct	1 ms	208 KB	OK (11 queries)
11	Correct	0 ms	208 KB	OK (4 queries)
12	Correct	1 ms	208 KB	OK (5 queries)
13	Correct	1 ms	208 KB	OK (11 queries)
14	Correct	1 ms	208 KB	OK (16 queries)
15	Correct	1 ms	208 KB	OK (11 queries)
16	Correct	2 ms	208 KB	OK (34 queries)
17	Correct	1 ms	208 KB	OK (2 queries)
18	Correct	1 ms	208 KB	OK (16 queries)
19	Correct	1 ms	208 KB	OK (3 queries)
20	Correct	1 ms	208 KB	OK (31 queries)
21	Correct	1 ms	208 KB	OK (9 queries)
22	Correct	0 ms	208 KB	OK (2 queries)
23	Correct	0 ms	208 KB	OK (2 queries)
24	Correct	0 ms	208 KB	OK (2 queries)
25	Correct	0 ms	208 KB	OK (3 queries)
26	Correct	1 ms	208 KB	OK (3 queries)
27	Correct	0 ms	208 KB	OK (2 queries)
28	Correct	0 ms	208 KB	OK (3 queries)
29	Correct	0 ms	208 KB	OK (4 queries)
30	Correct	0 ms	208 KB	OK (4 queries)
31	Correct	1 ms	208 KB	OK (2 queries)
32	Correct	1 ms	208 KB	OK (3 queries)
33	Correct	0 ms	208 KB	OK (4 queries)
34	Correct	1 ms	208 KB	OK (5 queries)
35	Correct	0 ms	208 KB	OK (5 queries)
36	Correct	0 ms	208 KB	OK (2 queries)
37	Correct	0 ms	208 KB	OK (3 queries)
38	Correct	0 ms	208 KB	OK (4 queries)
39	Correct	0 ms	208 KB	OK (5 queries)
40	Correct	1 ms	208 KB	OK (6 queries)
41	Correct	1 ms	208 KB	OK (6 queries)
42	Correct	0 ms	208 KB	OK (2 queries)
43	Correct	0 ms	208 KB	OK (3 queries)
44	Correct	0 ms	208 KB	OK (4 queries)
45	Correct	1 ms	208 KB	OK (5 queries)
46	Correct	1 ms	208 KB	OK (6 queries)
47	Correct	0 ms	208 KB	OK (7 queries)
48	Correct	1 ms	208 KB	OK (7 queries)
49	Correct	0 ms	208 KB	OK (2 queries)
50	Correct	0 ms	208 KB	OK (3 queries)
51	Correct	0 ms	208 KB	OK (4 queries)
52	Correct	0 ms	208 KB	OK (5 queries)
53	Correct	1 ms	208 KB	OK (6 queries)
54	Correct	1 ms	208 KB	OK (7 queries)
55	Correct	0 ms	208 KB	OK (8 queries)
56	Correct	1 ms	208 KB	OK (8 queries)
57	Correct	0 ms	208 KB	OK (3 queries)
58	Correct	0 ms	208 KB	OK (2 queries)
59	Correct	0 ms	208 KB	OK (3 queries)
60	Correct	0 ms	208 KB	OK (2 queries)
61	Correct	1 ms	208 KB	OK (63 queries)
62	Correct	0 ms	208 KB	OK (2 queries)
63	Correct	1 ms	208 KB	OK (63 queries)
64	Correct	0 ms	208 KB	OK (3 queries)
65	Correct	1 ms	208 KB	OK (62 queries)
66	Correct	0 ms	208 KB	OK (4 queries)
67	Correct	0 ms	208 KB	OK (61 queries)
68	Correct	1 ms	208 KB	OK (5 queries)
69	Correct	1 ms	208 KB	OK (60 queries)
70	Correct	0 ms	208 KB	OK (6 queries)
71	Runtime error	1 ms	336 KB	Execution killed with signal 6
72	Halted	0 ms	0 KB	-

Subtask #5

0 / 33.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	208 KB	OK (5 queries)
2	Correct	1 ms	208 KB	OK (6 queries)
3	Correct	1 ms	208 KB	OK (10 queries)
4	Correct	1 ms	208 KB	OK (26 queries)
5	Correct	1 ms	208 KB	OK (13 queries)
6	Correct	1 ms	208 KB	OK (26 queries)
7	Correct	1 ms	208 KB	OK (17 queries)
8	Correct	1 ms	208 KB	OK (7 queries)
9	Correct	0 ms	208 KB	OK (9 queries)
10	Correct	1 ms	208 KB	OK (11 queries)
11	Correct	0 ms	208 KB	OK (4 queries)
12	Correct	1 ms	208 KB	OK (5 queries)
13	Correct	1 ms	208 KB	OK (11 queries)
14	Correct	1 ms	208 KB	OK (16 queries)
15	Correct	1 ms	208 KB	OK (11 queries)
16	Correct	2 ms	208 KB	OK (34 queries)
17	Correct	1 ms	208 KB	OK (2 queries)
18	Correct	1 ms	208 KB	OK (16 queries)
19	Correct	1 ms	208 KB	OK (3 queries)
20	Correct	1 ms	208 KB	OK (31 queries)
21	Correct	1 ms	208 KB	OK (9 queries)
22	Correct	0 ms	208 KB	OK (2 queries)
23	Correct	0 ms	208 KB	OK (2 queries)
24	Correct	0 ms	208 KB	OK (2 queries)
25	Correct	0 ms	208 KB	OK (3 queries)
26	Correct	1 ms	208 KB	OK (3 queries)
27	Correct	0 ms	208 KB	OK (2 queries)
28	Correct	0 ms	208 KB	OK (3 queries)
29	Correct	0 ms	208 KB	OK (4 queries)
30	Correct	0 ms	208 KB	OK (4 queries)
31	Correct	1 ms	208 KB	OK (2 queries)
32	Correct	1 ms	208 KB	OK (3 queries)
33	Correct	0 ms	208 KB	OK (4 queries)
34	Correct	1 ms	208 KB	OK (5 queries)
35	Correct	0 ms	208 KB	OK (5 queries)
36	Correct	0 ms	208 KB	OK (2 queries)
37	Correct	0 ms	208 KB	OK (3 queries)
38	Correct	0 ms	208 KB	OK (4 queries)
39	Correct	0 ms	208 KB	OK (5 queries)
40	Correct	1 ms	208 KB	OK (6 queries)
41	Correct	1 ms	208 KB	OK (6 queries)
42	Correct	0 ms	208 KB	OK (2 queries)
43	Correct	0 ms	208 KB	OK (3 queries)
44	Correct	0 ms	208 KB	OK (4 queries)
45	Correct	1 ms	208 KB	OK (5 queries)
46	Correct	1 ms	208 KB	OK (6 queries)
47	Correct	0 ms	208 KB	OK (7 queries)
48	Correct	1 ms	208 KB	OK (7 queries)
49	Correct	0 ms	208 KB	OK (2 queries)
50	Correct	0 ms	208 KB	OK (3 queries)
51	Correct	0 ms	208 KB	OK (4 queries)
52	Correct	0 ms	208 KB	OK (5 queries)
53	Correct	1 ms	208 KB	OK (6 queries)
54	Correct	1 ms	208 KB	OK (7 queries)
55	Correct	0 ms	208 KB	OK (8 queries)
56	Correct	1 ms	208 KB	OK (8 queries)
57	Correct	0 ms	208 KB	OK (3 queries)
58	Correct	0 ms	208 KB	OK (2 queries)
59	Correct	0 ms	208 KB	OK (3 queries)
60	Correct	0 ms	208 KB	OK (2 queries)
61	Correct	1 ms	208 KB	OK (63 queries)
62	Correct	0 ms	208 KB	OK (2 queries)
63	Correct	1 ms	208 KB	OK (63 queries)
64	Correct	0 ms	208 KB	OK (3 queries)
65	Correct	1 ms	208 KB	OK (62 queries)
66	Correct	0 ms	208 KB	OK (4 queries)
67	Correct	0 ms	208 KB	OK (61 queries)
68	Correct	1 ms	208 KB	OK (5 queries)
69	Correct	1 ms	208 KB	OK (60 queries)
70	Correct	0 ms	208 KB	OK (6 queries)
71	Runtime error	1 ms	336 KB	Execution killed with signal 6
72	Halted	0 ms	0 KB	-