oj.uz

Submission #701233

# Submission time Handle Problem Language Result Execution time Memory
701233 2023-02-20T15:16:09 Z erekle Xoractive (IZhO19_xoractive) C++17
100 / 100
 3 ms 384 KB 
#include "interactive.h"
#include <map>

using namespace std;

vector<int> guess(int n) {
	int x = ask(1), maxBit = 0;
	while ((1 << (maxBit+1)) <= n-1) ++maxBit;
	auto getVals = [&x](vector<int> v) {
		vector<int> p = get_pairwise_xor(v);
		v.push_back(1);
		vector<int> q = get_pairwise_xor(v);
		vector<int> vals;
		for (int i = 0, j = 0; j < q.size(); ++j) {
			if (i < p.size() && p[i] == q[j]) ++i;
			else if (q[j]) vals.push_back(q[j] ^ x);
		}
		return vals;
	};

	map<int, int> where; // value to index
	for (int i = 0; i <= maxBit; ++i) {
		vector<int> v;
		for (int j = 2; j <= n; ++j) {
			if ((j-1) & (1 << i)) v.push_back(j);
		}
		vector<int> res = getVals(v);
		for (int y : res) where[y] |= (1 << i);
	}

	vector<int> ans(n); ans[0] = x;
	for (auto [y, i] : where) ans[i] = y;
	return ans;
}

Compilation message

Xoractive.cpp: In lambda function:
Xoractive.cpp:14:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |   for (int i = 0, j = 0; j < q.size(); ++j) {
      |                          ~~^~~~~~~~~~
Xoractive.cpp:15:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |    if (i < p.size() && p[i] == q[j]) ++i;
      |        ~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 276 KB Output is correct
2 Correct 2 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 280 KB Output is correct

Subtask #2
94.0 / 94.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 312 KB Output is correct
2 Correct 3 ms 336 KB Output is correct
3 Correct 2 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 3 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 336 KB Output is correct
8 Correct 2 ms 336 KB Output is correct
9 Correct 3 ms 208 KB Output is correct
10 Correct 2 ms 316 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 2 ms 336 KB Output is correct
14 Correct 3 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 2 ms 336 KB Output is correct
17 Correct 3 ms 336 KB Output is correct
18 Correct 2 ms 336 KB Output is correct
19 Correct 2 ms 208 KB Output is correct
20 Correct 2 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 2 ms 340 KB Output is correct
24 Correct 3 ms 336 KB Output is correct
25 Correct 2 ms 336 KB Output is correct
26 Correct 2 ms 336 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 2 ms 336 KB Output is correct
29 Correct 2 ms 336 KB Output is correct
30 Correct 2 ms 208 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 2 ms 208 KB Output is correct
33 Correct 2 ms 336 KB Output is correct
34 Correct 2 ms 336 KB Output is correct
35 Correct 2 ms 336 KB Output is correct
36 Correct 3 ms 336 KB Output is correct
37 Correct 2 ms 208 KB Output is correct
38 Correct 2 ms 336 KB Output is correct
39 Correct 2 ms 208 KB Output is correct
40 Correct 2 ms 336 KB Output is correct
41 Correct 2 ms 336 KB Output is correct
42 Correct 2 ms 208 KB Output is correct
43 Correct 3 ms 336 KB Output is correct
44 Correct 2 ms 336 KB Output is correct
45 Correct 2 ms 336 KB Output is correct
46 Correct 2 ms 208 KB Output is correct
47 Correct 2 ms 208 KB Output is correct
48 Correct 2 ms 208 KB Output is correct
49 Correct 2 ms 336 KB Output is correct
50 Correct 3 ms 344 KB Output is correct
51 Correct 2 ms 336 KB Output is correct
52 Correct 2 ms 336 KB Output is correct
53 Correct 3 ms 336 KB Output is correct
54 Correct 2 ms 336 KB Output is correct
55 Correct 1 ms 336 KB Output is correct
56 Correct 2 ms 336 KB Output is correct
57 Correct 2 ms 336 KB Output is correct
58 Correct 2 ms 336 KB Output is correct
59 Correct 2 ms 336 KB Output is correct
60 Correct 2 ms 208 KB Output is correct
61 Correct 2 ms 336 KB Output is correct
62 Correct 2 ms 336 KB Output is correct
63 Correct 1 ms 336 KB Output is correct
64 Correct 2 ms 336 KB Output is correct
65 Correct 2 ms 336 KB Output is correct
66 Correct 2 ms 336 KB Output is correct
67 Correct 2 ms 208 KB Output is correct
68 Correct 2 ms 336 KB Output is correct
69 Correct 2 ms 336 KB Output is correct
70 Correct 2 ms 208 KB Output is correct
71 Correct 3 ms 336 KB Output is correct
72 Correct 2 ms 336 KB Output is correct
73 Correct 2 ms 208 KB Output is correct
74 Correct 3 ms 336 KB Output is correct
75 Correct 2 ms 336 KB Output is correct
76 Correct 2 ms 336 KB Output is correct
77 Correct 2 ms 336 KB Output is correct
78 Correct 2 ms 208 KB Output is correct
79 Correct 2 ms 336 KB Output is correct
80 Correct 2 ms 280 KB Output is correct
81 Correct 2 ms 208 KB Output is correct
82 Correct 3 ms 208 KB Output is correct
83 Correct 2 ms 336 KB Output is correct
84 Correct 2 ms 208 KB Output is correct
85 Correct 2 ms 336 KB Output is correct
86 Correct 2 ms 336 KB Output is correct
87 Correct 2 ms 336 KB Output is correct
88 Correct 2 ms 336 KB Output is correct
89 Correct 3 ms 208 KB Output is correct
90 Correct 2 ms 220 KB Output is correct
91 Correct 2 ms 336 KB Output is correct
92 Correct 2 ms 336 KB Output is correct
93 Correct 3 ms 208 KB Output is correct
94 Correct 2 ms 208 KB Output is correct
95 Correct 2 ms 348 KB Output is correct
96 Correct 2 ms 276 KB Output is correct
97 Correct 2 ms 384 KB Output is correct
98 Correct 2 ms 336 KB Output is correct
99 Correct 2 ms 336 KB Output is correct
100 Correct 2 ms 336 KB Output is correct