#include "interactive.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> guess(int n) {
vector<int> ans;
ans.emplace_back(ask(1));
vector<vector<int>> ls(7); // ls[b] = list of numbers in positions where the b-th bit is ON.
for (int b = 0; b < 7; b++) {
vector<int> x;
for (int pos = 1; pos < n; pos++) {
if ((pos >> b) & 1) {
x.emplace_back(pos + 1);
}
}
if (x.empty()) {
ls[b].emplace_back(-1);
continue;
}
auto del = get_pairwise_xor(x);
x.emplace_back(1);
ls[b] = get_pairwise_xor(x);
ls[b].erase(find(begin(ls[b]), end(ls[b]), 0)); // delete A[0] ^ A[0]
for (auto &j : del) {
ls[b].erase(find(begin(ls[b]), end(ls[b]), j));
}
for (auto &j : ls[b]) { // A[0] ^ A[pos]
j ^= ans[0]; // turn to A[pos]
}
}
for (int pos = 1; pos < n; pos++) {
vector<int> candidate;
for (int b = 0; b < 7; b++) if (ls[b][0] != -1) {
if ((pos >> b) & 1) { // element must be in this list
if (candidate.empty()) {
candidate = ls[b];
} else {
vector<int> newcand;
for (auto i : ls[b]) {
if (count(begin(candidate), end(candidate), i)) {
newcand.emplace_back(i);
}
}
candidate = newcand;
}
}
}
assert(!candidate.empty());
for (int b = 0; b < 7; b++) if (ls[b][0] != -1) {
if (!((pos >> b) & 1)) { // element must not be in this list
for (auto i : ls[b]) {
if (count(begin(candidate), end(candidate), i)) {
candidate.erase(find(begin(candidate), end(candidate), i));
}
}
}
}
ans.emplace_back(candidate[0]);
}
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
200 KB |
Output is correct |
| 2 |
Correct |
1 ms |
200 KB |
Output is correct |
| 3 |
Correct |
1 ms |
200 KB |
Output is correct |
| 4 |
Correct |
1 ms |
200 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
384 KB |
Output is correct |
| 2 |
Correct |
7 ms |
328 KB |
Output is correct |
| 3 |
Correct |
7 ms |
328 KB |
Output is correct |
| 4 |
Correct |
7 ms |
328 KB |
Output is correct |
| 5 |
Correct |
7 ms |
328 KB |
Output is correct |
| 6 |
Correct |
7 ms |
328 KB |
Output is correct |
| 7 |
Correct |
7 ms |
404 KB |
Output is correct |
| 8 |
Correct |
7 ms |
328 KB |
Output is correct |
| 9 |
Correct |
7 ms |
332 KB |
Output is correct |
| 10 |
Correct |
7 ms |
328 KB |
Output is correct |
| 11 |
Correct |
7 ms |
328 KB |
Output is correct |
| 12 |
Correct |
7 ms |
328 KB |
Output is correct |
| 13 |
Correct |
7 ms |
328 KB |
Output is correct |
| 14 |
Correct |
8 ms |
404 KB |
Output is correct |
| 15 |
Correct |
8 ms |
328 KB |
Output is correct |
| 16 |
Correct |
7 ms |
404 KB |
Output is correct |
| 17 |
Correct |
7 ms |
328 KB |
Output is correct |
| 18 |
Correct |
7 ms |
328 KB |
Output is correct |
| 19 |
Correct |
7 ms |
328 KB |
Output is correct |
| 20 |
Correct |
9 ms |
328 KB |
Output is correct |
| 21 |
Correct |
7 ms |
328 KB |
Output is correct |
| 22 |
Correct |
7 ms |
412 KB |
Output is correct |
| 23 |
Correct |
7 ms |
328 KB |
Output is correct |
| 24 |
Correct |
7 ms |
328 KB |
Output is correct |
| 25 |
Correct |
7 ms |
328 KB |
Output is correct |
| 26 |
Correct |
7 ms |
328 KB |
Output is correct |
| 27 |
Correct |
7 ms |
328 KB |
Output is correct |
| 28 |
Correct |
7 ms |
328 KB |
Output is correct |
| 29 |
Correct |
7 ms |
328 KB |
Output is correct |
| 30 |
Correct |
8 ms |
328 KB |
Output is correct |
| 31 |
Correct |
7 ms |
328 KB |
Output is correct |
| 32 |
Correct |
7 ms |
432 KB |
Output is correct |
| 33 |
Correct |
8 ms |
408 KB |
Output is correct |
| 34 |
Correct |
7 ms |
336 KB |
Output is correct |
| 35 |
Correct |
9 ms |
328 KB |
Output is correct |
| 36 |
Correct |
7 ms |
328 KB |
Output is correct |
| 37 |
Correct |
7 ms |
328 KB |
Output is correct |
| 38 |
Correct |
7 ms |
328 KB |
Output is correct |
| 39 |
Correct |
7 ms |
404 KB |
Output is correct |
| 40 |
Correct |
7 ms |
328 KB |
Output is correct |
| 41 |
Correct |
7 ms |
404 KB |
Output is correct |
| 42 |
Correct |
7 ms |
328 KB |
Output is correct |
| 43 |
Correct |
7 ms |
328 KB |
Output is correct |
| 44 |
Correct |
7 ms |
328 KB |
Output is correct |
| 45 |
Correct |
7 ms |
328 KB |
Output is correct |
| 46 |
Correct |
7 ms |
412 KB |
Output is correct |
| 47 |
Correct |
7 ms |
328 KB |
Output is correct |
| 48 |
Correct |
7 ms |
456 KB |
Output is correct |
| 49 |
Correct |
7 ms |
416 KB |
Output is correct |
| 50 |
Correct |
7 ms |
408 KB |
Output is correct |
| 51 |
Correct |
7 ms |
328 KB |
Output is correct |
| 52 |
Correct |
7 ms |
328 KB |
Output is correct |
| 53 |
Correct |
7 ms |
328 KB |
Output is correct |
| 54 |
Correct |
7 ms |
328 KB |
Output is correct |
| 55 |
Correct |
7 ms |
380 KB |
Output is correct |
| 56 |
Correct |
7 ms |
328 KB |
Output is correct |
| 57 |
Correct |
7 ms |
328 KB |
Output is correct |
| 58 |
Correct |
7 ms |
328 KB |
Output is correct |
| 59 |
Correct |
7 ms |
328 KB |
Output is correct |
| 60 |
Correct |
9 ms |
328 KB |
Output is correct |
| 61 |
Correct |
9 ms |
328 KB |
Output is correct |
| 62 |
Correct |
7 ms |
328 KB |
Output is correct |
| 63 |
Correct |
7 ms |
328 KB |
Output is correct |
| 64 |
Correct |
7 ms |
328 KB |
Output is correct |
| 65 |
Correct |
7 ms |
328 KB |
Output is correct |
| 66 |
Correct |
7 ms |
328 KB |
Output is correct |
| 67 |
Correct |
7 ms |
328 KB |
Output is correct |
| 68 |
Correct |
7 ms |
328 KB |
Output is correct |
| 69 |
Correct |
7 ms |
328 KB |
Output is correct |
| 70 |
Correct |
8 ms |
456 KB |
Output is correct |
| 71 |
Correct |
7 ms |
328 KB |
Output is correct |
| 72 |
Correct |
7 ms |
328 KB |
Output is correct |
| 73 |
Correct |
7 ms |
328 KB |
Output is correct |
| 74 |
Correct |
7 ms |
328 KB |
Output is correct |
| 75 |
Correct |
7 ms |
328 KB |
Output is correct |
| 76 |
Correct |
8 ms |
328 KB |
Output is correct |
| 77 |
Correct |
7 ms |
396 KB |
Output is correct |
| 78 |
Correct |
7 ms |
328 KB |
Output is correct |
| 79 |
Correct |
6 ms |
328 KB |
Output is correct |
| 80 |
Correct |
8 ms |
456 KB |
Output is correct |
| 81 |
Correct |
7 ms |
328 KB |
Output is correct |
| 82 |
Correct |
7 ms |
328 KB |
Output is correct |
| 83 |
Correct |
9 ms |
328 KB |
Output is correct |
| 84 |
Correct |
8 ms |
328 KB |
Output is correct |
| 85 |
Correct |
9 ms |
328 KB |
Output is correct |
| 86 |
Correct |
7 ms |
328 KB |
Output is correct |
| 87 |
Correct |
7 ms |
328 KB |
Output is correct |
| 88 |
Correct |
7 ms |
340 KB |
Output is correct |
| 89 |
Correct |
7 ms |
412 KB |
Output is correct |
| 90 |
Correct |
7 ms |
328 KB |
Output is correct |
| 91 |
Correct |
7 ms |
404 KB |
Output is correct |
| 92 |
Correct |
7 ms |
328 KB |
Output is correct |
| 93 |
Correct |
7 ms |
328 KB |
Output is correct |
| 94 |
Correct |
8 ms |
328 KB |
Output is correct |
| 95 |
Correct |
8 ms |
328 KB |
Output is correct |
| 96 |
Correct |
9 ms |
328 KB |
Output is correct |
| 97 |
Correct |
9 ms |
328 KB |
Output is correct |
| 98 |
Correct |
7 ms |
328 KB |
Output is correct |
| 99 |
Correct |
7 ms |
328 KB |
Output is correct |
| 100 |
Correct |
7 ms |
328 KB |
Output is correct |
