oj.uz

Submission #1038308

# Submission time Handle Problem Language Result Execution time Memory
1038308 2024-07-29T16:06:27 Z SN0WM4N Colors (BOI20_colors) C++14
9 / 100
 1 ms 596 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define sort undefined_function // To use stable_sort instead sort 
#define bpc __builtin_popcount
#define ull unsigned long long
#define ld double
#define ll long long
#define mp make_pair
#define F first
#define S second

#pragma GCC optimize("O3")

#ifdef LOCAL 
        #include "debug.h"
#else 
        #define dbg(...) 0
#endif

using namespace __gnu_pbds;
using namespace std;

typedef tree<long long, null_type, less_equal<long long>,
    rb_tree_tag, tree_order_statistics_node_update> Tree;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const ll INF = 9223372036854775807LL;
const ll inf = 2147483647;
const ll MOD = 998244353; //[998244353, 1e9 + 7, 1e9 + 13]
const ld PI = acos(-1);
const ll NROOT = 800;

ll binpow(ll a, ll b, ll _MOD = -1) {
        if (_MOD == -1)
                _MOD = MOD;
        ll res = 1;
        for (; b; b /= 2, a *= a, a %= _MOD)
                if (b & 1) res *= a, res %= _MOD;
        return res;
}

void set_IO(string s) {
#ifndef LOCAL
        string in  = s +  ".in";
        string out = s + ".out";
        freopen(in.c_str(),  "r",  stdin);
        freopen(out.c_str(), "w", stdout);
#endif
}

bool dataOverflow(ll a, ll b) {return (log10(a) + log10(b) >= 18);}
ll gcd(ll a, ll b) {return b ? gcd(b, a % b) : a;}
ll lcm(ll a, ll b) {return a * b / gcd(a, b);}
ll ceil(ll a, ll b) {return (a + b - 1) / b;}
ll invmod(ll a) {return binpow(a, MOD - 2);}

bool query(int x) {
        cout << "? " << x << endl;
        int y;
        cin >> y;

        return (y == 1);
}

int32_t main() {
//        ios_base::sync_with_stdio(0);
//        cin.tie(0);

        int n;
        cin >> n;

        int lst = 1;
        bool ok = query(1);

        int sign = 1;
        for (int i = n - 1; i > 0; i --) {
                lst += i * sign;
                ok = query(lst);
                sign *= -1;
                if (!ok) {
                        cout << "= " << i + 1 << endl;
                        return 0;
                }
        }

        cout << "= 1" << endl;

        return 0;
}

Compilation message

Colors.cpp: In function 'void set_IO(std::string)':
Colors.cpp:47:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |         freopen(in.c_str(),  "r",  stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
Colors.cpp:48:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |         freopen(out.c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB OK (5 queries)
2 Correct 0 ms 344 KB OK (6 queries)
3 Correct 0 ms 344 KB OK (10 queries)
4 Correct 0 ms 344 KB OK (26 queries)
5 Correct 0 ms 344 KB OK (13 queries)
6 Correct 1 ms 344 KB OK (26 queries)
7 Correct 0 ms 356 KB OK (17 queries)
8 Correct 0 ms 344 KB OK (7 queries)
9 Correct 0 ms 344 KB OK (9 queries)
10 Correct 0 ms 344 KB OK (11 queries)
11 Correct 0 ms 344 KB OK (4 queries)
12 Correct 0 ms 344 KB OK (5 queries)
13 Correct 0 ms 344 KB OK (11 queries)
14 Correct 0 ms 344 KB OK (16 queries)
15 Correct 1 ms 344 KB OK (11 queries)
16 Correct 0 ms 344 KB OK (34 queries)
17 Correct 0 ms 344 KB OK (2 queries)
18 Correct 0 ms 344 KB OK (16 queries)
19 Correct 0 ms 344 KB OK (3 queries)
20 Correct 0 ms 344 KB OK (31 queries)
21 Correct 0 ms 344 KB OK (9 queries)
22 Correct 0 ms 344 KB OK (2 queries)
23 Correct 0 ms 344 KB OK (2 queries)
24 Correct 0 ms 344 KB OK (2 queries)
25 Correct 0 ms 344 KB OK (3 queries)
26 Correct 0 ms 344 KB OK (3 queries)
27 Correct 0 ms 344 KB OK (2 queries)
28 Correct 1 ms 344 KB OK (3 queries)
29 Correct 0 ms 344 KB OK (4 queries)
30 Correct 0 ms 344 KB OK (4 queries)
31 Correct 0 ms 344 KB OK (2 queries)
32 Correct 0 ms 344 KB OK (3 queries)
33 Correct 0 ms 344 KB OK (4 queries)
34 Correct 0 ms 596 KB OK (5 queries)
35 Correct 0 ms 344 KB OK (5 queries)
36 Correct 0 ms 344 KB OK (2 queries)
37 Correct 0 ms 344 KB OK (3 queries)
38 Correct 0 ms 344 KB OK (4 queries)
39 Correct 0 ms 344 KB OK (5 queries)
40 Correct 1 ms 344 KB OK (6 queries)
41 Correct 0 ms 344 KB OK (6 queries)
42 Correct 0 ms 344 KB OK (2 queries)
43 Correct 1 ms 344 KB OK (3 queries)
44 Correct 0 ms 344 KB OK (4 queries)
45 Correct 0 ms 344 KB OK (5 queries)
46 Correct 1 ms 344 KB OK (6 queries)
47 Correct 0 ms 344 KB OK (7 queries)
48 Correct 0 ms 344 KB OK (7 queries)
49 Correct 0 ms 344 KB OK (2 queries)
50 Correct 0 ms 344 KB OK (3 queries)
51 Correct 0 ms 344 KB OK (4 queries)
52 Correct 0 ms 344 KB OK (5 queries)
53 Correct 0 ms 344 KB OK (6 queries)
54 Correct 0 ms 344 KB OK (7 queries)
55 Correct 1 ms 344 KB OK (8 queries)
56 Correct 0 ms 344 KB OK (8 queries)
57 Correct 0 ms 344 KB OK (3 queries)
58 Correct 0 ms 344 KB OK (2 queries)
59 Correct 0 ms 344 KB OK (3 queries)
60 Correct 0 ms 344 KB OK (2 queries)
61 Correct 0 ms 344 KB OK (63 queries)
62 Correct 0 ms 344 KB OK (2 queries)
63 Correct 1 ms 344 KB OK (63 queries)
64 Correct 0 ms 344 KB OK (3 queries)
65 Correct 0 ms 344 KB OK (62 queries)
66 Correct 0 ms 344 KB OK (4 queries)
67 Correct 1 ms 344 KB OK (61 queries)
68 Correct 1 ms 344 KB OK (5 queries)
69 Correct 0 ms 344 KB OK (60 queries)
70 Correct 0 ms 344 KB OK (6 queries)

Subtask #2
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB OK (5 queries)
2 Correct 0 ms 344 KB OK (6 queries)
3 Correct 0 ms 344 KB OK (10 queries)
4 Correct 0 ms 344 KB OK (26 queries)
5 Correct 0 ms 344 KB OK (13 queries)
6 Correct 1 ms 344 KB OK (26 queries)
7 Correct 0 ms 356 KB OK (17 queries)
8 Correct 0 ms 344 KB OK (7 queries)
9 Correct 0 ms 344 KB OK (9 queries)
10 Correct 0 ms 344 KB OK (11 queries)
11 Correct 0 ms 344 KB OK (4 queries)
12 Correct 0 ms 344 KB OK (5 queries)
13 Correct 0 ms 344 KB OK (11 queries)
14 Correct 0 ms 344 KB OK (16 queries)
15 Correct 1 ms 344 KB OK (11 queries)
16 Correct 0 ms 344 KB OK (34 queries)
17 Correct 0 ms 344 KB OK (2 queries)
18 Correct 0 ms 344 KB OK (16 queries)
19 Correct 0 ms 344 KB OK (3 queries)
20 Correct 0 ms 344 KB OK (31 queries)
21 Correct 0 ms 344 KB OK (9 queries)
22 Correct 0 ms 344 KB OK (2 queries)
23 Correct 0 ms 344 KB OK (2 queries)
24 Correct 0 ms 344 KB OK (2 queries)
25 Correct 0 ms 344 KB OK (3 queries)
26 Correct 0 ms 344 KB OK (3 queries)
27 Correct 0 ms 344 KB OK (2 queries)
28 Correct 1 ms 344 KB OK (3 queries)
29 Correct 0 ms 344 KB OK (4 queries)
30 Correct 0 ms 344 KB OK (4 queries)
31 Correct 0 ms 344 KB OK (2 queries)
32 Correct 0 ms 344 KB OK (3 queries)
33 Correct 0 ms 344 KB OK (4 queries)
34 Correct 0 ms 596 KB OK (5 queries)
35 Correct 0 ms 344 KB OK (5 queries)
36 Correct 0 ms 344 KB OK (2 queries)
37 Correct 0 ms 344 KB OK (3 queries)
38 Correct 0 ms 344 KB OK (4 queries)
39 Correct 0 ms 344 KB OK (5 queries)
40 Correct 1 ms 344 KB OK (6 queries)
41 Correct 0 ms 344 KB OK (6 queries)
42 Correct 0 ms 344 KB OK (2 queries)
43 Correct 1 ms 344 KB OK (3 queries)
44 Correct 0 ms 344 KB OK (4 queries)
45 Correct 0 ms 344 KB OK (5 queries)
46 Correct 1 ms 344 KB OK (6 queries)
47 Correct 0 ms 344 KB OK (7 queries)
48 Correct 0 ms 344 KB OK (7 queries)
49 Correct 0 ms 344 KB OK (2 queries)
50 Correct 0 ms 344 KB OK (3 queries)
51 Correct 0 ms 344 KB OK (4 queries)
52 Correct 0 ms 344 KB OK (5 queries)
53 Correct 0 ms 344 KB OK (6 queries)
54 Correct 0 ms 344 KB OK (7 queries)
55 Correct 1 ms 344 KB OK (8 queries)
56 Correct 0 ms 344 KB OK (8 queries)
57 Correct 0 ms 344 KB OK (3 queries)
58 Correct 0 ms 344 KB OK (2 queries)
59 Correct 0 ms 344 KB OK (3 queries)
60 Correct 0 ms 344 KB OK (2 queries)
61 Correct 0 ms 344 KB OK (63 queries)
62 Correct 0 ms 344 KB OK (2 queries)
63 Correct 1 ms 344 KB OK (63 queries)
64 Correct 0 ms 344 KB OK (3 queries)
65 Correct 0 ms 344 KB OK (62 queries)
66 Correct 0 ms 344 KB OK (4 queries)
67 Correct 1 ms 344 KB OK (61 queries)
68 Correct 1 ms 344 KB OK (5 queries)
69 Correct 0 ms 344 KB OK (60 queries)
70 Correct 0 ms 344 KB OK (6 queries)
71 Incorrect 1 ms 344 KB Query limit exceeded
72 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB OK (5 queries)
2 Correct 0 ms 344 KB OK (6 queries)
3 Correct 0 ms 344 KB OK (10 queries)
4 Correct 0 ms 344 KB OK (26 queries)
5 Correct 0 ms 344 KB OK (13 queries)
6 Correct 1 ms 344 KB OK (26 queries)
7 Correct 0 ms 356 KB OK (17 queries)
8 Correct 0 ms 344 KB OK (7 queries)
9 Correct 0 ms 344 KB OK (9 queries)
10 Correct 0 ms 344 KB OK (11 queries)
11 Correct 0 ms 344 KB OK (4 queries)
12 Correct 0 ms 344 KB OK (5 queries)
13 Correct 0 ms 344 KB OK (11 queries)
14 Correct 0 ms 344 KB OK (16 queries)
15 Correct 1 ms 344 KB OK (11 queries)
16 Correct 0 ms 344 KB OK (34 queries)
17 Correct 0 ms 344 KB OK (2 queries)
18 Correct 0 ms 344 KB OK (16 queries)
19 Correct 0 ms 344 KB OK (3 queries)
20 Correct 0 ms 344 KB OK (31 queries)
21 Correct 0 ms 344 KB OK (9 queries)
22 Correct 0 ms 344 KB OK (2 queries)
23 Correct 0 ms 344 KB OK (2 queries)
24 Correct 0 ms 344 KB OK (2 queries)
25 Correct 0 ms 344 KB OK (3 queries)
26 Correct 0 ms 344 KB OK (3 queries)
27 Correct 0 ms 344 KB OK (2 queries)
28 Correct 1 ms 344 KB OK (3 queries)
29 Correct 0 ms 344 KB OK (4 queries)
30 Correct 0 ms 344 KB OK (4 queries)
31 Correct 0 ms 344 KB OK (2 queries)
32 Correct 0 ms 344 KB OK (3 queries)
33 Correct 0 ms 344 KB OK (4 queries)
34 Correct 0 ms 596 KB OK (5 queries)
35 Correct 0 ms 344 KB OK (5 queries)
36 Correct 0 ms 344 KB OK (2 queries)
37 Correct 0 ms 344 KB OK (3 queries)
38 Correct 0 ms 344 KB OK (4 queries)
39 Correct 0 ms 344 KB OK (5 queries)
40 Correct 1 ms 344 KB OK (6 queries)
41 Correct 0 ms 344 KB OK (6 queries)
42 Correct 0 ms 344 KB OK (2 queries)
43 Correct 1 ms 344 KB OK (3 queries)
44 Correct 0 ms 344 KB OK (4 queries)
45 Correct 0 ms 344 KB OK (5 queries)
46 Correct 1 ms 344 KB OK (6 queries)
47 Correct 0 ms 344 KB OK (7 queries)
48 Correct 0 ms 344 KB OK (7 queries)
49 Correct 0 ms 344 KB OK (2 queries)
50 Correct 0 ms 344 KB OK (3 queries)
51 Correct 0 ms 344 KB OK (4 queries)
52 Correct 0 ms 344 KB OK (5 queries)
53 Correct 0 ms 344 KB OK (6 queries)
54 Correct 0 ms 344 KB OK (7 queries)
55 Correct 1 ms 344 KB OK (8 queries)
56 Correct 0 ms 344 KB OK (8 queries)
57 Correct 0 ms 344 KB OK (3 queries)
58 Correct 0 ms 344 KB OK (2 queries)
59 Correct 0 ms 344 KB OK (3 queries)
60 Correct 0 ms 344 KB OK (2 queries)
61 Correct 0 ms 344 KB OK (63 queries)
62 Correct 0 ms 344 KB OK (2 queries)
63 Correct 1 ms 344 KB OK (63 queries)
64 Correct 0 ms 344 KB OK (3 queries)
65 Correct 0 ms 344 KB OK (62 queries)
66 Correct 0 ms 344 KB OK (4 queries)
67 Correct 1 ms 344 KB OK (61 queries)
68 Correct 1 ms 344 KB OK (5 queries)
69 Correct 0 ms 344 KB OK (60 queries)
70 Correct 0 ms 344 KB OK (6 queries)
71 Incorrect 1 ms 344 KB Query limit exceeded
72 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB OK (5 queries)
2 Correct 0 ms 344 KB OK (6 queries)
3 Correct 0 ms 344 KB OK (10 queries)
4 Correct 0 ms 344 KB OK (26 queries)
5 Correct 0 ms 344 KB OK (13 queries)
6 Correct 1 ms 344 KB OK (26 queries)
7 Correct 0 ms 356 KB OK (17 queries)
8 Correct 0 ms 344 KB OK (7 queries)
9 Correct 0 ms 344 KB OK (9 queries)
10 Correct 0 ms 344 KB OK (11 queries)
11 Correct 0 ms 344 KB OK (4 queries)
12 Correct 0 ms 344 KB OK (5 queries)
13 Correct 0 ms 344 KB OK (11 queries)
14 Correct 0 ms 344 KB OK (16 queries)
15 Correct 1 ms 344 KB OK (11 queries)
16 Correct 0 ms 344 KB OK (34 queries)
17 Correct 0 ms 344 KB OK (2 queries)
18 Correct 0 ms 344 KB OK (16 queries)
19 Correct 0 ms 344 KB OK (3 queries)
20 Correct 0 ms 344 KB OK (31 queries)
21 Correct 0 ms 344 KB OK (9 queries)
22 Correct 0 ms 344 KB OK (2 queries)
23 Correct 0 ms 344 KB OK (2 queries)
24 Correct 0 ms 344 KB OK (2 queries)
25 Correct 0 ms 344 KB OK (3 queries)
26 Correct 0 ms 344 KB OK (3 queries)
27 Correct 0 ms 344 KB OK (2 queries)
28 Correct 1 ms 344 KB OK (3 queries)
29 Correct 0 ms 344 KB OK (4 queries)
30 Correct 0 ms 344 KB OK (4 queries)
31 Correct 0 ms 344 KB OK (2 queries)
32 Correct 0 ms 344 KB OK (3 queries)
33 Correct 0 ms 344 KB OK (4 queries)
34 Correct 0 ms 596 KB OK (5 queries)
35 Correct 0 ms 344 KB OK (5 queries)
36 Correct 0 ms 344 KB OK (2 queries)
37 Correct 0 ms 344 KB OK (3 queries)
38 Correct 0 ms 344 KB OK (4 queries)
39 Correct 0 ms 344 KB OK (5 queries)
40 Correct 1 ms 344 KB OK (6 queries)
41 Correct 0 ms 344 KB OK (6 queries)
42 Correct 0 ms 344 KB OK (2 queries)
43 Correct 1 ms 344 KB OK (3 queries)
44 Correct 0 ms 344 KB OK (4 queries)
45 Correct 0 ms 344 KB OK (5 queries)
46 Correct 1 ms 344 KB OK (6 queries)
47 Correct 0 ms 344 KB OK (7 queries)
48 Correct 0 ms 344 KB OK (7 queries)
49 Correct 0 ms 344 KB OK (2 queries)
50 Correct 0 ms 344 KB OK (3 queries)
51 Correct 0 ms 344 KB OK (4 queries)
52 Correct 0 ms 344 KB OK (5 queries)
53 Correct 0 ms 344 KB OK (6 queries)
54 Correct 0 ms 344 KB OK (7 queries)
55 Correct 1 ms 344 KB OK (8 queries)
56 Correct 0 ms 344 KB OK (8 queries)
57 Correct 0 ms 344 KB OK (3 queries)
58 Correct 0 ms 344 KB OK (2 queries)
59 Correct 0 ms 344 KB OK (3 queries)
60 Correct 0 ms 344 KB OK (2 queries)
61 Correct 0 ms 344 KB OK (63 queries)
62 Correct 0 ms 344 KB OK (2 queries)
63 Correct 1 ms 344 KB OK (63 queries)
64 Correct 0 ms 344 KB OK (3 queries)
65 Correct 0 ms 344 KB OK (62 queries)
66 Correct 0 ms 344 KB OK (4 queries)
67 Correct 1 ms 344 KB OK (61 queries)
68 Correct 1 ms 344 KB OK (5 queries)
69 Correct 0 ms 344 KB OK (60 queries)
70 Correct 0 ms 344 KB OK (6 queries)
71 Incorrect 1 ms 344 KB Query limit exceeded
72 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB OK (5 queries)
2 Correct 0 ms 344 KB OK (6 queries)
3 Correct 0 ms 344 KB OK (10 queries)
4 Correct 0 ms 344 KB OK (26 queries)
5 Correct 0 ms 344 KB OK (13 queries)
6 Correct 1 ms 344 KB OK (26 queries)
7 Correct 0 ms 356 KB OK (17 queries)
8 Correct 0 ms 344 KB OK (7 queries)
9 Correct 0 ms 344 KB OK (9 queries)
10 Correct 0 ms 344 KB OK (11 queries)
11 Correct 0 ms 344 KB OK (4 queries)
12 Correct 0 ms 344 KB OK (5 queries)
13 Correct 0 ms 344 KB OK (11 queries)
14 Correct 0 ms 344 KB OK (16 queries)
15 Correct 1 ms 344 KB OK (11 queries)
16 Correct 0 ms 344 KB OK (34 queries)
17 Correct 0 ms 344 KB OK (2 queries)
18 Correct 0 ms 344 KB OK (16 queries)
19 Correct 0 ms 344 KB OK (3 queries)
20 Correct 0 ms 344 KB OK (31 queries)
21 Correct 0 ms 344 KB OK (9 queries)
22 Correct 0 ms 344 KB OK (2 queries)
23 Correct 0 ms 344 KB OK (2 queries)
24 Correct 0 ms 344 KB OK (2 queries)
25 Correct 0 ms 344 KB OK (3 queries)
26 Correct 0 ms 344 KB OK (3 queries)
27 Correct 0 ms 344 KB OK (2 queries)
28 Correct 1 ms 344 KB OK (3 queries)
29 Correct 0 ms 344 KB OK (4 queries)
30 Correct 0 ms 344 KB OK (4 queries)
31 Correct 0 ms 344 KB OK (2 queries)
32 Correct 0 ms 344 KB OK (3 queries)
33 Correct 0 ms 344 KB OK (4 queries)
34 Correct 0 ms 596 KB OK (5 queries)
35 Correct 0 ms 344 KB OK (5 queries)
36 Correct 0 ms 344 KB OK (2 queries)
37 Correct 0 ms 344 KB OK (3 queries)
38 Correct 0 ms 344 KB OK (4 queries)
39 Correct 0 ms 344 KB OK (5 queries)
40 Correct 1 ms 344 KB OK (6 queries)
41 Correct 0 ms 344 KB OK (6 queries)
42 Correct 0 ms 344 KB OK (2 queries)
43 Correct 1 ms 344 KB OK (3 queries)
44 Correct 0 ms 344 KB OK (4 queries)
45 Correct 0 ms 344 KB OK (5 queries)
46 Correct 1 ms 344 KB OK (6 queries)
47 Correct 0 ms 344 KB OK (7 queries)
48 Correct 0 ms 344 KB OK (7 queries)
49 Correct 0 ms 344 KB OK (2 queries)
50 Correct 0 ms 344 KB OK (3 queries)
51 Correct 0 ms 344 KB OK (4 queries)
52 Correct 0 ms 344 KB OK (5 queries)
53 Correct 0 ms 344 KB OK (6 queries)
54 Correct 0 ms 344 KB OK (7 queries)
55 Correct 1 ms 344 KB OK (8 queries)
56 Correct 0 ms 344 KB OK (8 queries)
57 Correct 0 ms 344 KB OK (3 queries)
58 Correct 0 ms 344 KB OK (2 queries)
59 Correct 0 ms 344 KB OK (3 queries)
60 Correct 0 ms 344 KB OK (2 queries)
61 Correct 0 ms 344 KB OK (63 queries)
62 Correct 0 ms 344 KB OK (2 queries)
63 Correct 1 ms 344 KB OK (63 queries)
64 Correct 0 ms 344 KB OK (3 queries)
65 Correct 0 ms 344 KB OK (62 queries)
66 Correct 0 ms 344 KB OK (4 queries)
67 Correct 1 ms 344 KB OK (61 queries)
68 Correct 1 ms 344 KB OK (5 queries)
69 Correct 0 ms 344 KB OK (60 queries)
70 Correct 0 ms 344 KB OK (6 queries)
71 Incorrect 1 ms 344 KB Query limit exceeded
72 Halted 0 ms 0 KB -