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Submission #205792

# Submission time Handle Problem Language Result Execution time Memory
205792 2020-02-29T22:19:58 Z edsa Xoractive (IZhO19_xoractive) C++17
100 / 100
 9 ms 508 KB 
#include <bits/stdc++.h>
#include "interactive.h"
using namespace std;

using vi = vector<int>;


// log2(100) => 7
vector<int> guess(int n) {
    vi query, pxor1, pxor2, ans(n);
    map<int, int> reverse, substract;
    ans[0] = ask(1);

    for (int i = 0; i < 7; i++) { 
        query.clear();
        substract.clear();
        for (int j = 0; j < n; j++) {
            if (j & (1<<i)) {
                query.push_back(j+1);
            }
        }
        if (query.empty()) continue;

        pxor1 = get_pairwise_xor(query);
        query.push_back(1);
        pxor2 = get_pairwise_xor(query);
        for (int v : pxor1) {
            substract[v]--;
        }
        substract[0]--; // for combination (0,0)
        for (int v : pxor2) {
            substract[v]++;
        }

        for (const auto& pp : substract) {
            if (pp.second != 0) {
                reverse[pp.first^ans[0]] |= (1<<i);
            }
        }
    }

    for (const auto& pp : reverse) {
        ans[pp.second] = pp.first;
    }
    return ans;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 376 KB Output is correct
2 Correct 4 ms 248 KB Output is correct
3 Correct 5 ms 248 KB Output is correct
4 Correct 5 ms 248 KB Output is correct

Subtask #2
94.0 / 94.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 376 KB Output is correct
2 Correct 8 ms 248 KB Output is correct
3 Correct 6 ms 376 KB Output is correct
4 Correct 8 ms 376 KB Output is correct
5 Correct 8 ms 376 KB Output is correct
6 Correct 8 ms 376 KB Output is correct
7 Correct 7 ms 376 KB Output is correct
8 Correct 8 ms 376 KB Output is correct
9 Correct 9 ms 376 KB Output is correct
10 Correct 8 ms 376 KB Output is correct
11 Correct 7 ms 248 KB Output is correct
12 Correct 8 ms 376 KB Output is correct
13 Correct 8 ms 380 KB Output is correct
14 Correct 8 ms 376 KB Output is correct
15 Correct 7 ms 376 KB Output is correct
16 Correct 8 ms 376 KB Output is correct
17 Correct 8 ms 408 KB Output is correct
18 Correct 8 ms 376 KB Output is correct
19 Correct 7 ms 376 KB Output is correct
20 Correct 8 ms 404 KB Output is correct
21 Correct 8 ms 376 KB Output is correct
22 Correct 8 ms 376 KB Output is correct
23 Correct 7 ms 376 KB Output is correct
24 Correct 8 ms 380 KB Output is correct
25 Correct 8 ms 380 KB Output is correct
26 Correct 8 ms 376 KB Output is correct
27 Correct 7 ms 308 KB Output is correct
28 Correct 8 ms 376 KB Output is correct
29 Correct 8 ms 376 KB Output is correct
30 Correct 8 ms 380 KB Output is correct
31 Correct 7 ms 376 KB Output is correct
32 Correct 8 ms 376 KB Output is correct
33 Correct 8 ms 380 KB Output is correct
34 Correct 8 ms 408 KB Output is correct
35 Correct 7 ms 376 KB Output is correct
36 Correct 8 ms 376 KB Output is correct
37 Correct 8 ms 376 KB Output is correct
38 Correct 8 ms 376 KB Output is correct
39 Correct 7 ms 376 KB Output is correct
40 Correct 8 ms 376 KB Output is correct
41 Correct 8 ms 376 KB Output is correct
42 Correct 8 ms 376 KB Output is correct
43 Correct 7 ms 376 KB Output is correct
44 Correct 8 ms 376 KB Output is correct
45 Correct 9 ms 376 KB Output is correct
46 Correct 8 ms 376 KB Output is correct
47 Correct 6 ms 376 KB Output is correct
48 Correct 8 ms 376 KB Output is correct
49 Correct 8 ms 376 KB Output is correct
50 Correct 8 ms 380 KB Output is correct
51 Correct 7 ms 376 KB Output is correct
52 Correct 8 ms 376 KB Output is correct
53 Correct 8 ms 376 KB Output is correct
54 Correct 8 ms 356 KB Output is correct
55 Correct 7 ms 376 KB Output is correct
56 Correct 8 ms 376 KB Output is correct
57 Correct 8 ms 376 KB Output is correct
58 Correct 8 ms 376 KB Output is correct
59 Correct 7 ms 376 KB Output is correct
60 Correct 8 ms 376 KB Output is correct
61 Correct 9 ms 504 KB Output is correct
62 Correct 8 ms 376 KB Output is correct
63 Correct 7 ms 376 KB Output is correct
64 Correct 8 ms 508 KB Output is correct
65 Correct 9 ms 376 KB Output is correct
66 Correct 8 ms 376 KB Output is correct
67 Correct 7 ms 376 KB Output is correct
68 Correct 8 ms 376 KB Output is correct
69 Correct 8 ms 376 KB Output is correct
70 Correct 8 ms 376 KB Output is correct
71 Correct 7 ms 376 KB Output is correct
72 Correct 8 ms 376 KB Output is correct
73 Correct 8 ms 376 KB Output is correct
74 Correct 8 ms 376 KB Output is correct
75 Correct 7 ms 376 KB Output is correct
76 Correct 8 ms 376 KB Output is correct
77 Correct 8 ms 376 KB Output is correct
78 Correct 8 ms 376 KB Output is correct
79 Correct 7 ms 376 KB Output is correct
80 Correct 8 ms 376 KB Output is correct
81 Correct 8 ms 376 KB Output is correct
82 Correct 8 ms 376 KB Output is correct
83 Correct 7 ms 376 KB Output is correct
84 Correct 8 ms 376 KB Output is correct
85 Correct 8 ms 408 KB Output is correct
86 Correct 8 ms 408 KB Output is correct
87 Correct 8 ms 504 KB Output is correct
88 Correct 8 ms 376 KB Output is correct
89 Correct 8 ms 376 KB Output is correct
90 Correct 8 ms 376 KB Output is correct
91 Correct 7 ms 376 KB Output is correct
92 Correct 8 ms 376 KB Output is correct
93 Correct 8 ms 376 KB Output is correct
94 Correct 8 ms 376 KB Output is correct
95 Correct 7 ms 376 KB Output is correct
96 Correct 8 ms 376 KB Output is correct
97 Correct 8 ms 376 KB Output is correct
98 Correct 8 ms 376 KB Output is correct
99 Correct 6 ms 376 KB Output is correct
100 Correct 8 ms 396 KB Output is correct