Submission #618858

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
618858	2022-08-02T07:58:54 Z	MetalPower	Xoractive (IZhO19_xoractive)	C++14	100 / 100	3 ms	356 KB

Xoractive

#include <bits/stdc++.h>
using namespace std;

#include "interactive.h"

// ask(i) := returns value at i
// get_pairwise_xor(vec) := returns a set of pairwise xor's

map<int, int> loc;

vector<int> guess(int n){

	int lst = ask(n);

	for(int bt = 0; bt < 7; bt++){

		vector<int> vec;
		for(int i = 1; i <= n - 1; i++)
			if(i & (1 << bt)) vec.push_back(i);
		
		vector<int> st, fn;

		{
			if(vec.empty()) st = {};
			else st = get_pairwise_xor(vec);
		}

		{
			vec.push_back(n);
			fn = get_pairwise_xor(vec);
		}

		vector<int> vals;

		int a = 0, b = 0;
		for(; a < (int) st.size(); a++, b++)
			while(b < (int) fn.size() && fn[b] != st[a]) vals.push_back(fn[b++]);
		while(b < (int) fn.size()) vals.push_back(fn[b++]);

		for(int j = 1; j < (int) vals.size(); j += 2)
			loc[vals[j] ^ lst] ^= 1 << bt;
	}

	vector<int> ans;
	ans.resize(n, 0);

	for(auto x : loc) ans[x.second - 1] = x.first;
	ans[n - 1] = lst;
	return ans;
}

Subtask #1

6.0 / 6.0

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

Subtask #2

94.0 / 94.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	324 KB	Output is correct
2	Correct	2 ms	336 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	2 ms	336 KB	Output is correct
5	Correct	2 ms	336 KB	Output is correct
6	Correct	3 ms	336 KB	Output is correct
7	Correct	2 ms	336 KB	Output is correct
8	Correct	2 ms	336 KB	Output is correct
9	Correct	2 ms	336 KB	Output is correct
10	Correct	2 ms	336 KB	Output is correct
11	Correct	2 ms	336 KB	Output is correct
12	Correct	2 ms	336 KB	Output is correct
13	Correct	2 ms	336 KB	Output is correct
14	Correct	2 ms	336 KB	Output is correct
15	Correct	2 ms	336 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	336 KB	Output is correct
20	Correct	2 ms	336 KB	Output is correct
21	Correct	2 ms	336 KB	Output is correct
22	Correct	2 ms	320 KB	Output is correct
23	Correct	2 ms	336 KB	Output is correct
24	Correct	2 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	336 KB	Output is correct
31	Correct	2 ms	336 KB	Output is correct
32	Correct	2 ms	336 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	2 ms	336 KB	Output is correct
37	Correct	2 ms	336 KB	Output is correct
38	Correct	2 ms	336 KB	Output is correct
39	Correct	2 ms	352 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	336 KB	Output is correct
43	Correct	2 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	336 KB	Output is correct
47	Correct	2 ms	336 KB	Output is correct
48	Correct	2 ms	336 KB	Output is correct
49	Correct	2 ms	336 KB	Output is correct
50	Correct	2 ms	336 KB	Output is correct
51	Correct	2 ms	336 KB	Output is correct
52	Correct	2 ms	336 KB	Output is correct
53	Correct	2 ms	256 KB	Output is correct
54	Correct	2 ms	336 KB	Output is correct
55	Correct	2 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	356 KB	Output is correct
60	Correct	2 ms	336 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	336 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	336 KB	Output is correct
71	Correct	1 ms	336 KB	Output is correct
72	Correct	2 ms	336 KB	Output is correct
73	Correct	2 ms	336 KB	Output is correct
74	Correct	2 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	336 KB	Output is correct
79	Correct	1 ms	336 KB	Output is correct
80	Correct	2 ms	336 KB	Output is correct
81	Correct	2 ms	336 KB	Output is correct
82	Correct	2 ms	336 KB	Output is correct
83	Correct	2 ms	336 KB	Output is correct
84	Correct	2 ms	336 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	2 ms	336 KB	Output is correct
90	Correct	2 ms	336 KB	Output is correct
91	Correct	2 ms	348 KB	Output is correct
92	Correct	2 ms	336 KB	Output is correct
93	Correct	2 ms	336 KB	Output is correct
94	Correct	2 ms	336 KB	Output is correct
95	Correct	1 ms	336 KB	Output is correct
96	Correct	2 ms	336 KB	Output is correct
97	Correct	2 ms	336 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