#include "interactive.h"
#include <bits/stdc++.h>
#define all(x) begin(x), end(x)
using namespace std;
int first = -1;
vector<int> getNums(vector<int> a) {
vector<int> q(a.size()+1);
for (int i = 0; i < a.size(); i++) {
q[i] = a[i]+1;
}
q[a.size()] = 1;
vector<int> tot = get_pairwise_xor(q);
q.resize(a.size());
vector<int> own = get_pairwise_xor(q);
vector<int> res(2*a.size()+1);
set_difference(all(tot), all(own), res.begin());
sort(res.begin(), res.end());
res.resize(unique(res.begin(), res.end())-res.begin());
assert(res.size() == a.size()+1 && res[0] == 0);
vector<int> ret(a.size());
for (int i = 1; i < res.size(); i++) {
ret[i-1] = res[i]^first;
}
sort(all(ret));
return ret;
}
vector<int> guess(int n) {
vector <int> ans(n);
if (n <= 15) {
for (int i = 0; i < n; i++) {
ans[i] = ask(i+1);
}
return ans;
}
first = ask(1);
ans[0] = first;
vector<int> av(n-1);
for (int i = 1; i < n; i++) {
av[i-1] = i;
}
vector<vector<int>> on(7);
vector<vector<int>> off(7, vector<int>(n));
for (int i = 0; i < 7; i++) {
vector<int> prep;
for (int j = 0; j < n; j++) {
if ((1<<i)&j) {
prep.push_back(j);
}
}
if (prep.size() != 0) {
on[i] = getNums(prep);
}
// off[i].resize(set_difference(all(tot), all(on[i]), off[i].begin())-off[i].begin());
}
vector<int> tot;
for (int i = 0; i < 7; i++) {
tot.resize(n);
tot.resize(set_union(all(tot), all(on[i]), tot.begin())-tot.begin());
}
for (int i = 0; i < n; i++) {
off[i].resize(set_difference(all(tot), all(on[i]), off[i].begin())-off[i].begin());
}
for (int i = 1; i < n; i++) {
vector<int> cur(tot.size());
copy(all(tot), cur.begin());
for (int b = 0; b < 7; b++) {
vector<int>& nxt = (((1<<b)&i) ? on[b] : off[b]);
cur.resize(set_intersection(all(cur), all(nxt), cur.begin())-cur.begin());
}
assert(cur.size() == 1);
ans[i] = cur[0];
}
return ans;
}
Compilation message
Xoractive.cpp: In function 'std::vector<int> getNums(std::vector<int>)':
Xoractive.cpp:9:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
9 | for (int i = 0; i < a.size(); i++) {
| ~~^~~~~~~~~~
Xoractive.cpp:23:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
23 | for (int i = 1; i < res.size(); i++) {
| ~~^~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
0 ms |
364 KB |
Output is correct |
| 4 |
Correct |
0 ms |
364 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
3 ms |
492 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
