oj.uz

Submission #256097

# Submission time Handle Problem Language Result Execution time Memory
256097 2020-08-02T09:47:10 Z 구재현(#5035) Colors (BOI20_colors) C++17
9 / 100
 1 ms 288 KB 
#include <bits/stdc++.h>
#define sz(v) ((int)(v).size())
#define all(v) (v).begin(), (v).end()
using namespace std;
typedef long long lint;
typedef long double llf;
typedef pair<int, int> pi;
const int MAXN = 100005;

void report(lint x){
	cout << "= " << x << endl;
	exit(0);
}

set<lint> vis;

bool query(lint P){
	if(vis.find(P) != vis.end()) report(1);
	vis.insert(P);
	cout << "? " << P << endl;
	int x; cin >> x; return x;
}

int main(){
	lint N; cin >> N;
	if(N <= 64){
		query(1);
		lint p = 1;
		lint q = N;
		while(true){
			bool x = query(q);
			if(!x){
				report(q - p + 1);
			}
			x = query(p + 1);
			if(!x){
				report(q - p);
			}
			p++;
			q--;
		}
	}
	else report(69);
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB OK (5 queries)
2 Correct 0 ms 256 KB OK (6 queries)
3 Correct 0 ms 256 KB OK (10 queries)
4 Correct 0 ms 256 KB OK (26 queries)
5 Correct 0 ms 256 KB OK (13 queries)
6 Correct 1 ms 256 KB OK (26 queries)
7 Correct 1 ms 256 KB OK (17 queries)
8 Correct 1 ms 256 KB OK (7 queries)
9 Correct 0 ms 256 KB OK (9 queries)
10 Correct 1 ms 256 KB OK (11 queries)
11 Correct 0 ms 256 KB OK (4 queries)
12 Correct 1 ms 256 KB OK (5 queries)
13 Correct 1 ms 256 KB OK (11 queries)
14 Correct 1 ms 256 KB OK (16 queries)
15 Correct 1 ms 256 KB OK (11 queries)
16 Correct 1 ms 256 KB OK (34 queries)
17 Correct 0 ms 256 KB OK (2 queries)
18 Correct 0 ms 256 KB OK (16 queries)
19 Correct 1 ms 256 KB OK (3 queries)
20 Correct 1 ms 256 KB OK (31 queries)
21 Correct 0 ms 256 KB OK (9 queries)
22 Correct 0 ms 256 KB OK (2 queries)
23 Correct 0 ms 256 KB OK (2 queries)
24 Correct 0 ms 256 KB OK (2 queries)
25 Correct 0 ms 256 KB OK (3 queries)
26 Correct 1 ms 256 KB OK (3 queries)
27 Correct 0 ms 256 KB OK (2 queries)
28 Correct 0 ms 256 KB OK (3 queries)
29 Correct 0 ms 256 KB OK (4 queries)
30 Correct 0 ms 256 KB OK (4 queries)
31 Correct 0 ms 256 KB OK (2 queries)
32 Correct 0 ms 256 KB OK (3 queries)
33 Correct 1 ms 256 KB OK (4 queries)
34 Correct 0 ms 256 KB OK (5 queries)
35 Correct 1 ms 256 KB OK (5 queries)
36 Correct 0 ms 256 KB OK (2 queries)
37 Correct 0 ms 256 KB OK (3 queries)
38 Correct 0 ms 256 KB OK (4 queries)
39 Correct 0 ms 256 KB OK (5 queries)
40 Correct 1 ms 256 KB OK (6 queries)
41 Correct 0 ms 256 KB OK (6 queries)
42 Correct 1 ms 256 KB OK (2 queries)
43 Correct 1 ms 256 KB OK (3 queries)
44 Correct 0 ms 256 KB OK (4 queries)
45 Correct 0 ms 256 KB OK (5 queries)
46 Correct 1 ms 256 KB OK (6 queries)
47 Correct 0 ms 256 KB OK (7 queries)
48 Correct 0 ms 256 KB OK (7 queries)
49 Correct 0 ms 256 KB OK (2 queries)
50 Correct 0 ms 256 KB OK (3 queries)
51 Correct 0 ms 256 KB OK (4 queries)
52 Correct 1 ms 256 KB OK (5 queries)
53 Correct 1 ms 256 KB OK (6 queries)
54 Correct 0 ms 256 KB OK (7 queries)
55 Correct 1 ms 256 KB OK (8 queries)
56 Correct 0 ms 256 KB OK (8 queries)
57 Correct 0 ms 256 KB OK (3 queries)
58 Correct 0 ms 256 KB OK (2 queries)
59 Correct 0 ms 256 KB OK (3 queries)
60 Correct 0 ms 288 KB OK (2 queries)
61 Correct 1 ms 256 KB OK (63 queries)
62 Correct 1 ms 256 KB OK (2 queries)
63 Correct 1 ms 256 KB OK (63 queries)
64 Correct 0 ms 256 KB OK (3 queries)
65 Correct 1 ms 256 KB OK (62 queries)
66 Correct 0 ms 256 KB OK (4 queries)
67 Correct 1 ms 256 KB OK (61 queries)
68 Correct 0 ms 256 KB OK (5 queries)
69 Correct 1 ms 256 KB OK (60 queries)
70 Correct 1 ms 256 KB OK (6 queries)

Subtask #2
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB OK (5 queries)
2 Correct 0 ms 256 KB OK (6 queries)
3 Correct 0 ms 256 KB OK (10 queries)
4 Correct 0 ms 256 KB OK (26 queries)
5 Correct 0 ms 256 KB OK (13 queries)
6 Correct 1 ms 256 KB OK (26 queries)
7 Correct 1 ms 256 KB OK (17 queries)
8 Correct 1 ms 256 KB OK (7 queries)
9 Correct 0 ms 256 KB OK (9 queries)
10 Correct 1 ms 256 KB OK (11 queries)
11 Correct 0 ms 256 KB OK (4 queries)
12 Correct 1 ms 256 KB OK (5 queries)
13 Correct 1 ms 256 KB OK (11 queries)
14 Correct 1 ms 256 KB OK (16 queries)
15 Correct 1 ms 256 KB OK (11 queries)
16 Correct 1 ms 256 KB OK (34 queries)
17 Correct 0 ms 256 KB OK (2 queries)
18 Correct 0 ms 256 KB OK (16 queries)
19 Correct 1 ms 256 KB OK (3 queries)
20 Correct 1 ms 256 KB OK (31 queries)
21 Correct 0 ms 256 KB OK (9 queries)
22 Correct 0 ms 256 KB OK (2 queries)
23 Correct 0 ms 256 KB OK (2 queries)
24 Correct 0 ms 256 KB OK (2 queries)
25 Correct 0 ms 256 KB OK (3 queries)
26 Correct 1 ms 256 KB OK (3 queries)
27 Correct 0 ms 256 KB OK (2 queries)
28 Correct 0 ms 256 KB OK (3 queries)
29 Correct 0 ms 256 KB OK (4 queries)
30 Correct 0 ms 256 KB OK (4 queries)
31 Correct 0 ms 256 KB OK (2 queries)
32 Correct 0 ms 256 KB OK (3 queries)
33 Correct 1 ms 256 KB OK (4 queries)
34 Correct 0 ms 256 KB OK (5 queries)
35 Correct 1 ms 256 KB OK (5 queries)
36 Correct 0 ms 256 KB OK (2 queries)
37 Correct 0 ms 256 KB OK (3 queries)
38 Correct 0 ms 256 KB OK (4 queries)
39 Correct 0 ms 256 KB OK (5 queries)
40 Correct 1 ms 256 KB OK (6 queries)
41 Correct 0 ms 256 KB OK (6 queries)
42 Correct 1 ms 256 KB OK (2 queries)
43 Correct 1 ms 256 KB OK (3 queries)
44 Correct 0 ms 256 KB OK (4 queries)
45 Correct 0 ms 256 KB OK (5 queries)
46 Correct 1 ms 256 KB OK (6 queries)
47 Correct 0 ms 256 KB OK (7 queries)
48 Correct 0 ms 256 KB OK (7 queries)
49 Correct 0 ms 256 KB OK (2 queries)
50 Correct 0 ms 256 KB OK (3 queries)
51 Correct 0 ms 256 KB OK (4 queries)
52 Correct 1 ms 256 KB OK (5 queries)
53 Correct 1 ms 256 KB OK (6 queries)
54 Correct 0 ms 256 KB OK (7 queries)
55 Correct 1 ms 256 KB OK (8 queries)
56 Correct 0 ms 256 KB OK (8 queries)
57 Correct 0 ms 256 KB OK (3 queries)
58 Correct 0 ms 256 KB OK (2 queries)
59 Correct 0 ms 256 KB OK (3 queries)
60 Correct 0 ms 288 KB OK (2 queries)
61 Correct 1 ms 256 KB OK (63 queries)
62 Correct 1 ms 256 KB OK (2 queries)
63 Correct 1 ms 256 KB OK (63 queries)
64 Correct 0 ms 256 KB OK (3 queries)
65 Correct 1 ms 256 KB OK (62 queries)
66 Correct 0 ms 256 KB OK (4 queries)
67 Correct 1 ms 256 KB OK (61 queries)
68 Correct 0 ms 256 KB OK (5 queries)
69 Correct 1 ms 256 KB OK (60 queries)
70 Correct 1 ms 256 KB OK (6 queries)
71 Incorrect 1 ms 256 KB Wrong guess
72 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB OK (5 queries)
2 Correct 0 ms 256 KB OK (6 queries)
3 Correct 0 ms 256 KB OK (10 queries)
4 Correct 0 ms 256 KB OK (26 queries)
5 Correct 0 ms 256 KB OK (13 queries)
6 Correct 1 ms 256 KB OK (26 queries)
7 Correct 1 ms 256 KB OK (17 queries)
8 Correct 1 ms 256 KB OK (7 queries)
9 Correct 0 ms 256 KB OK (9 queries)
10 Correct 1 ms 256 KB OK (11 queries)
11 Correct 0 ms 256 KB OK (4 queries)
12 Correct 1 ms 256 KB OK (5 queries)
13 Correct 1 ms 256 KB OK (11 queries)
14 Correct 1 ms 256 KB OK (16 queries)
15 Correct 1 ms 256 KB OK (11 queries)
16 Correct 1 ms 256 KB OK (34 queries)
17 Correct 0 ms 256 KB OK (2 queries)
18 Correct 0 ms 256 KB OK (16 queries)
19 Correct 1 ms 256 KB OK (3 queries)
20 Correct 1 ms 256 KB OK (31 queries)
21 Correct 0 ms 256 KB OK (9 queries)
22 Correct 0 ms 256 KB OK (2 queries)
23 Correct 0 ms 256 KB OK (2 queries)
24 Correct 0 ms 256 KB OK (2 queries)
25 Correct 0 ms 256 KB OK (3 queries)
26 Correct 1 ms 256 KB OK (3 queries)
27 Correct 0 ms 256 KB OK (2 queries)
28 Correct 0 ms 256 KB OK (3 queries)
29 Correct 0 ms 256 KB OK (4 queries)
30 Correct 0 ms 256 KB OK (4 queries)
31 Correct 0 ms 256 KB OK (2 queries)
32 Correct 0 ms 256 KB OK (3 queries)
33 Correct 1 ms 256 KB OK (4 queries)
34 Correct 0 ms 256 KB OK (5 queries)
35 Correct 1 ms 256 KB OK (5 queries)
36 Correct 0 ms 256 KB OK (2 queries)
37 Correct 0 ms 256 KB OK (3 queries)
38 Correct 0 ms 256 KB OK (4 queries)
39 Correct 0 ms 256 KB OK (5 queries)
40 Correct 1 ms 256 KB OK (6 queries)
41 Correct 0 ms 256 KB OK (6 queries)
42 Correct 1 ms 256 KB OK (2 queries)
43 Correct 1 ms 256 KB OK (3 queries)
44 Correct 0 ms 256 KB OK (4 queries)
45 Correct 0 ms 256 KB OK (5 queries)
46 Correct 1 ms 256 KB OK (6 queries)
47 Correct 0 ms 256 KB OK (7 queries)
48 Correct 0 ms 256 KB OK (7 queries)
49 Correct 0 ms 256 KB OK (2 queries)
50 Correct 0 ms 256 KB OK (3 queries)
51 Correct 0 ms 256 KB OK (4 queries)
52 Correct 1 ms 256 KB OK (5 queries)
53 Correct 1 ms 256 KB OK (6 queries)
54 Correct 0 ms 256 KB OK (7 queries)
55 Correct 1 ms 256 KB OK (8 queries)
56 Correct 0 ms 256 KB OK (8 queries)
57 Correct 0 ms 256 KB OK (3 queries)
58 Correct 0 ms 256 KB OK (2 queries)
59 Correct 0 ms 256 KB OK (3 queries)
60 Correct 0 ms 288 KB OK (2 queries)
61 Correct 1 ms 256 KB OK (63 queries)
62 Correct 1 ms 256 KB OK (2 queries)
63 Correct 1 ms 256 KB OK (63 queries)
64 Correct 0 ms 256 KB OK (3 queries)
65 Correct 1 ms 256 KB OK (62 queries)
66 Correct 0 ms 256 KB OK (4 queries)
67 Correct 1 ms 256 KB OK (61 queries)
68 Correct 0 ms 256 KB OK (5 queries)
69 Correct 1 ms 256 KB OK (60 queries)
70 Correct 1 ms 256 KB OK (6 queries)
71 Incorrect 1 ms 256 KB Wrong guess
72 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB OK (5 queries)
2 Correct 0 ms 256 KB OK (6 queries)
3 Correct 0 ms 256 KB OK (10 queries)
4 Correct 0 ms 256 KB OK (26 queries)
5 Correct 0 ms 256 KB OK (13 queries)
6 Correct 1 ms 256 KB OK (26 queries)
7 Correct 1 ms 256 KB OK (17 queries)
8 Correct 1 ms 256 KB OK (7 queries)
9 Correct 0 ms 256 KB OK (9 queries)
10 Correct 1 ms 256 KB OK (11 queries)
11 Correct 0 ms 256 KB OK (4 queries)
12 Correct 1 ms 256 KB OK (5 queries)
13 Correct 1 ms 256 KB OK (11 queries)
14 Correct 1 ms 256 KB OK (16 queries)
15 Correct 1 ms 256 KB OK (11 queries)
16 Correct 1 ms 256 KB OK (34 queries)
17 Correct 0 ms 256 KB OK (2 queries)
18 Correct 0 ms 256 KB OK (16 queries)
19 Correct 1 ms 256 KB OK (3 queries)
20 Correct 1 ms 256 KB OK (31 queries)
21 Correct 0 ms 256 KB OK (9 queries)
22 Correct 0 ms 256 KB OK (2 queries)
23 Correct 0 ms 256 KB OK (2 queries)
24 Correct 0 ms 256 KB OK (2 queries)
25 Correct 0 ms 256 KB OK (3 queries)
26 Correct 1 ms 256 KB OK (3 queries)
27 Correct 0 ms 256 KB OK (2 queries)
28 Correct 0 ms 256 KB OK (3 queries)
29 Correct 0 ms 256 KB OK (4 queries)
30 Correct 0 ms 256 KB OK (4 queries)
31 Correct 0 ms 256 KB OK (2 queries)
32 Correct 0 ms 256 KB OK (3 queries)
33 Correct 1 ms 256 KB OK (4 queries)
34 Correct 0 ms 256 KB OK (5 queries)
35 Correct 1 ms 256 KB OK (5 queries)
36 Correct 0 ms 256 KB OK (2 queries)
37 Correct 0 ms 256 KB OK (3 queries)
38 Correct 0 ms 256 KB OK (4 queries)
39 Correct 0 ms 256 KB OK (5 queries)
40 Correct 1 ms 256 KB OK (6 queries)
41 Correct 0 ms 256 KB OK (6 queries)
42 Correct 1 ms 256 KB OK (2 queries)
43 Correct 1 ms 256 KB OK (3 queries)
44 Correct 0 ms 256 KB OK (4 queries)
45 Correct 0 ms 256 KB OK (5 queries)
46 Correct 1 ms 256 KB OK (6 queries)
47 Correct 0 ms 256 KB OK (7 queries)
48 Correct 0 ms 256 KB OK (7 queries)
49 Correct 0 ms 256 KB OK (2 queries)
50 Correct 0 ms 256 KB OK (3 queries)
51 Correct 0 ms 256 KB OK (4 queries)
52 Correct 1 ms 256 KB OK (5 queries)
53 Correct 1 ms 256 KB OK (6 queries)
54 Correct 0 ms 256 KB OK (7 queries)
55 Correct 1 ms 256 KB OK (8 queries)
56 Correct 0 ms 256 KB OK (8 queries)
57 Correct 0 ms 256 KB OK (3 queries)
58 Correct 0 ms 256 KB OK (2 queries)
59 Correct 0 ms 256 KB OK (3 queries)
60 Correct 0 ms 288 KB OK (2 queries)
61 Correct 1 ms 256 KB OK (63 queries)
62 Correct 1 ms 256 KB OK (2 queries)
63 Correct 1 ms 256 KB OK (63 queries)
64 Correct 0 ms 256 KB OK (3 queries)
65 Correct 1 ms 256 KB OK (62 queries)
66 Correct 0 ms 256 KB OK (4 queries)
67 Correct 1 ms 256 KB OK (61 queries)
68 Correct 0 ms 256 KB OK (5 queries)
69 Correct 1 ms 256 KB OK (60 queries)
70 Correct 1 ms 256 KB OK (6 queries)
71 Incorrect 1 ms 256 KB Wrong guess
72 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB OK (5 queries)
2 Correct 0 ms 256 KB OK (6 queries)
3 Correct 0 ms 256 KB OK (10 queries)
4 Correct 0 ms 256 KB OK (26 queries)
5 Correct 0 ms 256 KB OK (13 queries)
6 Correct 1 ms 256 KB OK (26 queries)
7 Correct 1 ms 256 KB OK (17 queries)
8 Correct 1 ms 256 KB OK (7 queries)
9 Correct 0 ms 256 KB OK (9 queries)
10 Correct 1 ms 256 KB OK (11 queries)
11 Correct 0 ms 256 KB OK (4 queries)
12 Correct 1 ms 256 KB OK (5 queries)
13 Correct 1 ms 256 KB OK (11 queries)
14 Correct 1 ms 256 KB OK (16 queries)
15 Correct 1 ms 256 KB OK (11 queries)
16 Correct 1 ms 256 KB OK (34 queries)
17 Correct 0 ms 256 KB OK (2 queries)
18 Correct 0 ms 256 KB OK (16 queries)
19 Correct 1 ms 256 KB OK (3 queries)
20 Correct 1 ms 256 KB OK (31 queries)
21 Correct 0 ms 256 KB OK (9 queries)
22 Correct 0 ms 256 KB OK (2 queries)
23 Correct 0 ms 256 KB OK (2 queries)
24 Correct 0 ms 256 KB OK (2 queries)
25 Correct 0 ms 256 KB OK (3 queries)
26 Correct 1 ms 256 KB OK (3 queries)
27 Correct 0 ms 256 KB OK (2 queries)
28 Correct 0 ms 256 KB OK (3 queries)
29 Correct 0 ms 256 KB OK (4 queries)
30 Correct 0 ms 256 KB OK (4 queries)
31 Correct 0 ms 256 KB OK (2 queries)
32 Correct 0 ms 256 KB OK (3 queries)
33 Correct 1 ms 256 KB OK (4 queries)
34 Correct 0 ms 256 KB OK (5 queries)
35 Correct 1 ms 256 KB OK (5 queries)
36 Correct 0 ms 256 KB OK (2 queries)
37 Correct 0 ms 256 KB OK (3 queries)
38 Correct 0 ms 256 KB OK (4 queries)
39 Correct 0 ms 256 KB OK (5 queries)
40 Correct 1 ms 256 KB OK (6 queries)
41 Correct 0 ms 256 KB OK (6 queries)
42 Correct 1 ms 256 KB OK (2 queries)
43 Correct 1 ms 256 KB OK (3 queries)
44 Correct 0 ms 256 KB OK (4 queries)
45 Correct 0 ms 256 KB OK (5 queries)
46 Correct 1 ms 256 KB OK (6 queries)
47 Correct 0 ms 256 KB OK (7 queries)
48 Correct 0 ms 256 KB OK (7 queries)
49 Correct 0 ms 256 KB OK (2 queries)
50 Correct 0 ms 256 KB OK (3 queries)
51 Correct 0 ms 256 KB OK (4 queries)
52 Correct 1 ms 256 KB OK (5 queries)
53 Correct 1 ms 256 KB OK (6 queries)
54 Correct 0 ms 256 KB OK (7 queries)
55 Correct 1 ms 256 KB OK (8 queries)
56 Correct 0 ms 256 KB OK (8 queries)
57 Correct 0 ms 256 KB OK (3 queries)
58 Correct 0 ms 256 KB OK (2 queries)
59 Correct 0 ms 256 KB OK (3 queries)
60 Correct 0 ms 288 KB OK (2 queries)
61 Correct 1 ms 256 KB OK (63 queries)
62 Correct 1 ms 256 KB OK (2 queries)
63 Correct 1 ms 256 KB OK (63 queries)
64 Correct 0 ms 256 KB OK (3 queries)
65 Correct 1 ms 256 KB OK (62 queries)
66 Correct 0 ms 256 KB OK (4 queries)
67 Correct 1 ms 256 KB OK (61 queries)
68 Correct 0 ms 256 KB OK (5 queries)
69 Correct 1 ms 256 KB OK (60 queries)
70 Correct 1 ms 256 KB OK (6 queries)
71 Incorrect 1 ms 256 KB Wrong guess
72 Halted 0 ms 0 KB -