#include <bits/stdc++.h>
#include "interactive.h"
#define pb emplace_back
#define ll long long
#define fi first
#define se second
#define mp make_pair
//#define int int64_t
using namespace std;
const int N = 107;
int ans[N];
//
//vector<int> get_pairwise_xor(vector<int> pos) {
// vector<int> res;
// cout << "ask: ";
// for(int x: pos) cout << x << ' ';
// cout << "\n"; cout << "answer: ";
// for(int x: pos) {
// for(int y: pos) {
// res.pb(ans[x] ^ ans[y]);
// cout << (ans[x] ^ ans[y]) << ' ';
// }
// }
// cout << '\n';
// return res;
//}
//
//int ask(int i) {return ans[i];}
vector<int> get_xor(vector<int>& pos) {
auto tmp = get_pairwise_xor(pos);
sort(tmp.begin(), tmp.end());
vector<int> ans;
for(int i = 0; i < tmp.size(); i += 2) {
if(tmp[i] == 0) continue;
ans.pb(tmp[i]);
}
return ans;
}
set<int> get_ans(int cur, vector<int>& pos) {
auto tmp1 = get_xor(pos);
pos.pb(1);
auto tmp2 = get_xor(pos);
set<int> res;
map<int, int> cnt;
for(auto x: tmp2) ++cnt[x];
for(auto x: tmp1) --cnt[x];
for(auto x: cnt)
if(x.se)
res.insert(x.fi ^ cur);
return res;
}
set<int> value[10];
vector<int> guess(int n) {
vector<int> res(n), pos;
if(n <= 15) {
for(int i = 0; i < n; ++i) res[i] = ask(i + 1);
return res;
}
res[0] = ask(1);
for(int i = 0; i < 7; ++i) {
pos.clear();
for(int j = 1; j < n; ++j)
if(j >> i & 1) pos.pb(j + 1);
value[i] = get_ans(res[0], pos);
cout << i << '\n';
for(int x: value[i]) cout << x << ' ';
cout << '\n';
}
set<int> can;
for(int j = n - 1; j > 0; --j) {
bool start = 0; can.clear();
for(int i = 0; i < 7; ++i) {
if(j >> i & 1) {
if(!start) can = value[i], start = 1;
else {
//for(int x: can) cout << x << ' ';
//cout << '\n';
vector<int> del;
for(int x: can)
if(!value[i].count(x)) del.pb(x);
for(int x: del) can.erase(x);
}
}
}
res[j] = *can.begin();
for(int i = 0; i < 7; ++i)
if(j >> i & 1) value[i].erase(res[j]);
}
return res;
}
//int32_t main() {
// ios_base::sync_with_stdio(0);
// cin.tie(0), cout.tie(0);
// #define Task "test"
// if(fopen(Task".inp", "r")) {
// freopen(Task".inp", "r", stdin);
// freopen(Task".out", "w", stdout);
// }
// int n; cin >> n;
// for(int i = 1; i <= n; ++i) cin >> ans[i];
// auto res = guess(n);
// for(int x: res) cout << x << ' ';
//}
Compilation message
Xoractive.cpp: In function 'std::vector<int> get_xor(std::vector<int>&)':
Xoractive.cpp:36:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i < tmp.size(); i += 2) {
~~^~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
256 KB |
Output is correct |
| 2 |
Correct |
0 ms |
256 KB |
Output is correct |
| 3 |
Correct |
0 ms |
256 KB |
Output is correct |
| 4 |
Correct |
0 ms |
256 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Failed |
4 ms |
384 KB |
do not print anything to standard output |
| 2 |
Halted |
0 ms |
0 KB |
- |
