oj.uz

Submission #837979

# Submission time Handle Problem Language Result Execution time Memory
837979 2023-08-26T01:51:55 Z 1075508020060209tc Colors (BOI20_colors) C++14
9 / 100
 1 ms 288 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,popcnt,sse4,abm")

#include <bits/stdc++.h>
using namespace std;
int n;
int ask(int v){
cout<<"? "<<v<<endl;
int ret;
cin>>ret;
return ret;
}
void solve64(){
ask(1);
int lst=1;
int lit=2;int rit=n;
for(int i=1;i<=64;i++){
    if(i%2==1){
        int v=rit;
        if(v==lst){
            cout<<"= 1"<<endl;exit(0);
        }
        int vl=ask(rit--);
        if(vl==0){
            cout<<"= "<<abs(v-lst)+1<<endl;exit(0);
        }
        lst=v;
    }else{
        int v=lit;
        if(v==lst){
            cout<<"= 1"<<endl;exit(0);
        }
        int vl=ask(lit++);
        if(vl==0){
            cout<<"= "<<abs(v-lst)+1<<endl;exit(0);
        }
        lst=v;
    }
}


}


signed main(){
cin>>n;
if(n<=64){
    solve64();
}




}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB OK (5 queries)
2 Correct 1 ms 208 KB OK (6 queries)
3 Correct 0 ms 208 KB OK (10 queries)
4 Correct 0 ms 208 KB OK (26 queries)
5 Correct 0 ms 288 KB OK (13 queries)
6 Correct 1 ms 208 KB OK (26 queries)
7 Correct 0 ms 208 KB OK (17 queries)
8 Correct 0 ms 260 KB OK (7 queries)
9 Correct 1 ms 208 KB OK (9 queries)
10 Correct 0 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 0 ms 208 KB OK (11 queries)
14 Correct 0 ms 208 KB OK (16 queries)
15 Correct 0 ms 208 KB OK (11 queries)
16 Correct 0 ms 208 KB OK (34 queries)
17 Correct 0 ms 208 KB OK (2 queries)
18 Correct 0 ms 208 KB OK (16 queries)
19 Correct 0 ms 208 KB OK (3 queries)
20 Correct 0 ms 208 KB OK (31 queries)
21 Correct 0 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 284 KB OK (2 queries)
25 Correct 0 ms 208 KB OK (3 queries)
26 Correct 0 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 0 ms 208 KB OK (2 queries)
32 Correct 0 ms 208 KB OK (3 queries)
33 Correct 0 ms 208 KB OK (4 queries)
34 Correct 0 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 0 ms 208 KB OK (6 queries)
41 Correct 0 ms 208 KB OK (6 queries)
42 Correct 0 ms 256 KB OK (2 queries)
43 Correct 1 ms 208 KB OK (3 queries)
44 Correct 1 ms 208 KB OK (4 queries)
45 Correct 1 ms 208 KB OK (5 queries)
46 Correct 0 ms 208 KB OK (6 queries)
47 Correct 0 ms 208 KB OK (7 queries)
48 Correct 0 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 1 ms 208 KB OK (4 queries)
52 Correct 0 ms 208 KB OK (5 queries)
53 Correct 0 ms 208 KB OK (6 queries)
54 Correct 1 ms 208 KB OK (7 queries)
55 Correct 1 ms 208 KB OK (8 queries)
56 Correct 1 ms 208 KB OK (8 queries)
57 Correct 1 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 1 ms 208 KB OK (61 queries)
68 Correct 0 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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB OK (5 queries)
2 Correct 1 ms 208 KB OK (6 queries)
3 Correct 0 ms 208 KB OK (10 queries)
4 Correct 0 ms 208 KB OK (26 queries)
5 Correct 0 ms 288 KB OK (13 queries)
6 Correct 1 ms 208 KB OK (26 queries)
7 Correct 0 ms 208 KB OK (17 queries)
8 Correct 0 ms 260 KB OK (7 queries)
9 Correct 1 ms 208 KB OK (9 queries)
10 Correct 0 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 0 ms 208 KB OK (11 queries)
14 Correct 0 ms 208 KB OK (16 queries)
15 Correct 0 ms 208 KB OK (11 queries)
16 Correct 0 ms 208 KB OK (34 queries)
17 Correct 0 ms 208 KB OK (2 queries)
18 Correct 0 ms 208 KB OK (16 queries)
19 Correct 0 ms 208 KB OK (3 queries)
20 Correct 0 ms 208 KB OK (31 queries)
21 Correct 0 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 284 KB OK (2 queries)
25 Correct 0 ms 208 KB OK (3 queries)
26 Correct 0 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 0 ms 208 KB OK (2 queries)
32 Correct 0 ms 208 KB OK (3 queries)
33 Correct 0 ms 208 KB OK (4 queries)
34 Correct 0 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 0 ms 208 KB OK (6 queries)
41 Correct 0 ms 208 KB OK (6 queries)
42 Correct 0 ms 256 KB OK (2 queries)
43 Correct 1 ms 208 KB OK (3 queries)
44 Correct 1 ms 208 KB OK (4 queries)
45 Correct 1 ms 208 KB OK (5 queries)
46 Correct 0 ms 208 KB OK (6 queries)
47 Correct 0 ms 208 KB OK (7 queries)
48 Correct 0 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 1 ms 208 KB OK (4 queries)
52 Correct 0 ms 208 KB OK (5 queries)
53 Correct 0 ms 208 KB OK (6 queries)
54 Correct 1 ms 208 KB OK (7 queries)
55 Correct 1 ms 208 KB OK (8 queries)
56 Correct 1 ms 208 KB OK (8 queries)
57 Correct 1 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 1 ms 208 KB OK (61 queries)
68 Correct 0 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 Incorrect 0 ms 208 KB Unexpected end of file - token expected
72 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB OK (5 queries)
2 Correct 1 ms 208 KB OK (6 queries)
3 Correct 0 ms 208 KB OK (10 queries)
4 Correct 0 ms 208 KB OK (26 queries)
5 Correct 0 ms 288 KB OK (13 queries)
6 Correct 1 ms 208 KB OK (26 queries)
7 Correct 0 ms 208 KB OK (17 queries)
8 Correct 0 ms 260 KB OK (7 queries)
9 Correct 1 ms 208 KB OK (9 queries)
10 Correct 0 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 0 ms 208 KB OK (11 queries)
14 Correct 0 ms 208 KB OK (16 queries)
15 Correct 0 ms 208 KB OK (11 queries)
16 Correct 0 ms 208 KB OK (34 queries)
17 Correct 0 ms 208 KB OK (2 queries)
18 Correct 0 ms 208 KB OK (16 queries)
19 Correct 0 ms 208 KB OK (3 queries)
20 Correct 0 ms 208 KB OK (31 queries)
21 Correct 0 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 284 KB OK (2 queries)
25 Correct 0 ms 208 KB OK (3 queries)
26 Correct 0 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 0 ms 208 KB OK (2 queries)
32 Correct 0 ms 208 KB OK (3 queries)
33 Correct 0 ms 208 KB OK (4 queries)
34 Correct 0 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 0 ms 208 KB OK (6 queries)
41 Correct 0 ms 208 KB OK (6 queries)
42 Correct 0 ms 256 KB OK (2 queries)
43 Correct 1 ms 208 KB OK (3 queries)
44 Correct 1 ms 208 KB OK (4 queries)
45 Correct 1 ms 208 KB OK (5 queries)
46 Correct 0 ms 208 KB OK (6 queries)
47 Correct 0 ms 208 KB OK (7 queries)
48 Correct 0 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 1 ms 208 KB OK (4 queries)
52 Correct 0 ms 208 KB OK (5 queries)
53 Correct 0 ms 208 KB OK (6 queries)
54 Correct 1 ms 208 KB OK (7 queries)
55 Correct 1 ms 208 KB OK (8 queries)
56 Correct 1 ms 208 KB OK (8 queries)
57 Correct 1 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 1 ms 208 KB OK (61 queries)
68 Correct 0 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 Incorrect 0 ms 208 KB Unexpected end of file - token expected
72 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB OK (5 queries)
2 Correct 1 ms 208 KB OK (6 queries)
3 Correct 0 ms 208 KB OK (10 queries)
4 Correct 0 ms 208 KB OK (26 queries)
5 Correct 0 ms 288 KB OK (13 queries)
6 Correct 1 ms 208 KB OK (26 queries)
7 Correct 0 ms 208 KB OK (17 queries)
8 Correct 0 ms 260 KB OK (7 queries)
9 Correct 1 ms 208 KB OK (9 queries)
10 Correct 0 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 0 ms 208 KB OK (11 queries)
14 Correct 0 ms 208 KB OK (16 queries)
15 Correct 0 ms 208 KB OK (11 queries)
16 Correct 0 ms 208 KB OK (34 queries)
17 Correct 0 ms 208 KB OK (2 queries)
18 Correct 0 ms 208 KB OK (16 queries)
19 Correct 0 ms 208 KB OK (3 queries)
20 Correct 0 ms 208 KB OK (31 queries)
21 Correct 0 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 284 KB OK (2 queries)
25 Correct 0 ms 208 KB OK (3 queries)
26 Correct 0 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 0 ms 208 KB OK (2 queries)
32 Correct 0 ms 208 KB OK (3 queries)
33 Correct 0 ms 208 KB OK (4 queries)
34 Correct 0 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 0 ms 208 KB OK (6 queries)
41 Correct 0 ms 208 KB OK (6 queries)
42 Correct 0 ms 256 KB OK (2 queries)
43 Correct 1 ms 208 KB OK (3 queries)
44 Correct 1 ms 208 KB OK (4 queries)
45 Correct 1 ms 208 KB OK (5 queries)
46 Correct 0 ms 208 KB OK (6 queries)
47 Correct 0 ms 208 KB OK (7 queries)
48 Correct 0 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 1 ms 208 KB OK (4 queries)
52 Correct 0 ms 208 KB OK (5 queries)
53 Correct 0 ms 208 KB OK (6 queries)
54 Correct 1 ms 208 KB OK (7 queries)
55 Correct 1 ms 208 KB OK (8 queries)
56 Correct 1 ms 208 KB OK (8 queries)
57 Correct 1 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 1 ms 208 KB OK (61 queries)
68 Correct 0 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 Incorrect 0 ms 208 KB Unexpected end of file - token expected
72 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB OK (5 queries)
2 Correct 1 ms 208 KB OK (6 queries)
3 Correct 0 ms 208 KB OK (10 queries)
4 Correct 0 ms 208 KB OK (26 queries)
5 Correct 0 ms 288 KB OK (13 queries)
6 Correct 1 ms 208 KB OK (26 queries)
7 Correct 0 ms 208 KB OK (17 queries)
8 Correct 0 ms 260 KB OK (7 queries)
9 Correct 1 ms 208 KB OK (9 queries)
10 Correct 0 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 0 ms 208 KB OK (11 queries)
14 Correct 0 ms 208 KB OK (16 queries)
15 Correct 0 ms 208 KB OK (11 queries)
16 Correct 0 ms 208 KB OK (34 queries)
17 Correct 0 ms 208 KB OK (2 queries)
18 Correct 0 ms 208 KB OK (16 queries)
19 Correct 0 ms 208 KB OK (3 queries)
20 Correct 0 ms 208 KB OK (31 queries)
21 Correct 0 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 284 KB OK (2 queries)
25 Correct 0 ms 208 KB OK (3 queries)
26 Correct 0 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 0 ms 208 KB OK (2 queries)
32 Correct 0 ms 208 KB OK (3 queries)
33 Correct 0 ms 208 KB OK (4 queries)
34 Correct 0 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 0 ms 208 KB OK (6 queries)
41 Correct 0 ms 208 KB OK (6 queries)
42 Correct 0 ms 256 KB OK (2 queries)
43 Correct 1 ms 208 KB OK (3 queries)
44 Correct 1 ms 208 KB OK (4 queries)
45 Correct 1 ms 208 KB OK (5 queries)
46 Correct 0 ms 208 KB OK (6 queries)
47 Correct 0 ms 208 KB OK (7 queries)
48 Correct 0 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 1 ms 208 KB OK (4 queries)
52 Correct 0 ms 208 KB OK (5 queries)
53 Correct 0 ms 208 KB OK (6 queries)
54 Correct 1 ms 208 KB OK (7 queries)
55 Correct 1 ms 208 KB OK (8 queries)
56 Correct 1 ms 208 KB OK (8 queries)
57 Correct 1 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 1 ms 208 KB OK (61 queries)
68 Correct 0 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 Incorrect 0 ms 208 KB Unexpected end of file - token expected
72 Halted 0 ms 0 KB -