oj.uz

Submission #645835

# Submission time Handle Problem Language Result Execution time Memory
645835 2022-09-28T07:04:54 Z boris_mihov Xoractive (IZhO19_xoractive) C++17
100 / 100
 4 ms 388 KB 
#include "interactive.h"
#include <algorithm>
#include <iostream>
#include <numeric>
#include <vector>
#include <map>
#include <set>

typedef long long llong;
const int MAXN = 250 + 10;
const int INF  = 1e9;

std::map <int,int> map; 
std::vector <int> ans, res, res2, queried;
std::multiset <int> s;

std::vector <int> query(std::vector <int> returned, int sz)
{
    std::vector <int> curr;
    for (int i = sz ; i < returned.size() ; i += 2)
    {
        curr.push_back(returned[i]);
    }

    return curr;
}

std::vector <int> guess(int n)
{
    ans.resize(n);
    ans[n-1] = ask(n);
    for (int log = 0 ; (1 << log) <= n-1 ; ++log)
    {
        s.clear();
        queried.clear();
        for (int i = 1 ; i <= n-1 ; ++i)
        {
            if ((i & (1 << log)))
            {
                queried.push_back(i);
            }
        }

        queried.push_back(n);
        if (queried.size() == 1) continue;
        res = query(get_pairwise_xor(queried), queried.size());
        if (queried.size() == 2)
        {
            map[res[0] ^ ans[n-1]] |= (1 << log);
            continue;
        }

        queried.pop_back();
        res2 = query(get_pairwise_xor(queried), queried.size());
        for (const int &i : res) s.insert(i);
        for (const int &i : res2) s.erase(s.find(i));
        for (const int &i : s)
        {
            map[i ^ ans[n-1]] |= (1 << log);
        }
    }

    for (auto [key, value] : map)
    {
        ans[value - 1] = key;
    }
    
    return ans;
}

Compilation message

Xoractive.cpp: In function 'std::vector<int> query(std::vector<int>, int)':
Xoractive.cpp:20:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     for (int i = sz ; i < returned.size() ; i += 2)
      |                       ~~^~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 288 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct

Subtask #2
94.0 / 94.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 336 KB Output is correct
2 Correct 3 ms 336 KB Output is correct
3 Correct 3 ms 332 KB Output is correct
4 Correct 3 ms 336 KB Output is correct
5 Correct 3 ms 336 KB Output is correct
6 Correct 3 ms 368 KB Output is correct
7 Correct 3 ms 336 KB Output is correct
8 Correct 3 ms 336 KB Output is correct
9 Correct 3 ms 336 KB Output is correct
10 Correct 3 ms 336 KB Output is correct
11 Correct 3 ms 336 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 4 ms 336 KB Output is correct
14 Correct 3 ms 336 KB Output is correct
15 Correct 3 ms 336 KB Output is correct
16 Correct 3 ms 336 KB Output is correct
17 Correct 3 ms 336 KB Output is correct
18 Correct 3 ms 336 KB Output is correct
19 Correct 3 ms 364 KB Output is correct
20 Correct 4 ms 336 KB Output is correct
21 Correct 3 ms 336 KB Output is correct
22 Correct 3 ms 336 KB Output is correct
23 Correct 3 ms 336 KB Output is correct
24 Correct 3 ms 336 KB Output is correct
25 Correct 3 ms 336 KB Output is correct
26 Correct 3 ms 336 KB Output is correct
27 Correct 3 ms 336 KB Output is correct
28 Correct 3 ms 336 KB Output is correct
29 Correct 3 ms 336 KB Output is correct
30 Correct 4 ms 372 KB Output is correct
31 Correct 3 ms 336 KB Output is correct
32 Correct 3 ms 336 KB Output is correct
33 Correct 3 ms 336 KB Output is correct
34 Correct 3 ms 372 KB Output is correct
35 Correct 4 ms 336 KB Output is correct
36 Correct 4 ms 336 KB Output is correct
37 Correct 3 ms 336 KB Output is correct
38 Correct 3 ms 336 KB Output is correct
39 Correct 3 ms 336 KB Output is correct
40 Correct 3 ms 336 KB Output is correct
41 Correct 3 ms 336 KB Output is correct
42 Correct 3 ms 336 KB Output is correct
43 Correct 3 ms 336 KB Output is correct
44 Correct 3 ms 336 KB Output is correct
45 Correct 3 ms 336 KB Output is correct
46 Correct 3 ms 368 KB Output is correct
47 Correct 3 ms 336 KB Output is correct
48 Correct 4 ms 336 KB Output is correct
49 Correct 3 ms 336 KB Output is correct
50 Correct 3 ms 336 KB Output is correct
51 Correct 3 ms 336 KB Output is correct
52 Correct 3 ms 336 KB Output is correct
53 Correct 3 ms 336 KB Output is correct
54 Correct 3 ms 336 KB Output is correct
55 Correct 3 ms 336 KB Output is correct
56 Correct 4 ms 336 KB Output is correct
57 Correct 3 ms 336 KB Output is correct
58 Correct 3 ms 336 KB Output is correct
59 Correct 3 ms 388 KB Output is correct
60 Correct 3 ms 336 KB Output is correct
61 Correct 3 ms 336 KB Output is correct
62 Correct 3 ms 368 KB Output is correct
63 Correct 3 ms 336 KB Output is correct
64 Correct 3 ms 336 KB Output is correct
65 Correct 3 ms 336 KB Output is correct
66 Correct 3 ms 336 KB Output is correct
67 Correct 3 ms 336 KB Output is correct
68 Correct 3 ms 336 KB Output is correct
69 Correct 3 ms 372 KB Output is correct
70 Correct 3 ms 336 KB Output is correct
71 Correct 3 ms 336 KB Output is correct
72 Correct 3 ms 336 KB Output is correct
73 Correct 3 ms 336 KB Output is correct
74 Correct 3 ms 336 KB Output is correct
75 Correct 3 ms 336 KB Output is correct
76 Correct 3 ms 336 KB Output is correct
77 Correct 3 ms 336 KB Output is correct
78 Correct 3 ms 336 KB Output is correct
79 Correct 3 ms 336 KB Output is correct
80 Correct 3 ms 336 KB Output is correct
81 Correct 3 ms 336 KB Output is correct
82 Correct 3 ms 336 KB Output is correct
83 Correct 4 ms 336 KB Output is correct
84 Correct 3 ms 336 KB Output is correct
85 Correct 3 ms 336 KB Output is correct
86 Correct 3 ms 336 KB Output is correct
87 Correct 3 ms 336 KB Output is correct
88 Correct 3 ms 336 KB Output is correct
89 Correct 3 ms 336 KB Output is correct
90 Correct 3 ms 336 KB Output is correct
91 Correct 3 ms 336 KB Output is correct
92 Correct 3 ms 336 KB Output is correct
93 Correct 3 ms 372 KB Output is correct
94 Correct 3 ms 336 KB Output is correct
95 Correct 3 ms 336 KB Output is correct
96 Correct 3 ms 340 KB Output is correct
97 Correct 3 ms 336 KB Output is correct
98 Correct 4 ms 336 KB Output is correct
99 Correct 3 ms 336 KB Output is correct
100 Correct 3 ms 336 KB Output is correct