#include "interactive.h"
#include<bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define sz(s) (int)s.size()
#define all(s) s.begin(), s.end()
#define forn(i, x, y) for(int i = x; i <= y; i++)
#define forev(i, y, x) for(int i = y; i >= x; i--)
using namespace std;
const int maxn = (int)3e5 + 100;
const int mod = (int)1e9 + 7;
const int P = (int)1e6 + 7;
const int inf = (int)1e9 + 7;
typedef pair<int, int> pii;
typedef long long ll;
typedef vector<int> vi;
typedef vector<pii> vpii;
typedef long double ld;
using namespace std;
/*int n, a[maxn];
int ask(int pos){
return a[pos];
}
vi get_pairwise_xor(vi v){
vi cur;
for(auto x : v)
for(auto y : v)
cur.pb(a[x] ^ a[y]);
sort(all(cur));
return cur;
}*/
vi clear(vi now, int kek){
while(kek--) now.erase(now.begin());
forn(i, 0, sz(now) - 1){
if(i < sz(now))
now.erase(now.begin() + i);
}
return now;
}
vi elements(vi cur){
vi now = get_pairwise_xor(cur), v;
int f = ask(cur[0]);
now = clear(now, sz(cur));
vi nxt = cur;
nxt.erase(nxt.begin());
nxt = get_pairwise_xor(nxt);
nxt = clear(nxt, sz(cur) - 1);
map<int, int> was;
for(auto x : nxt) was[x]++;
for(auto x : now)
if(was[x] % 2 == 0)
v.pb(x ^ f);
v.pb(f);
return v;
}
int End[maxn];
vector<int> guess(int n) {
vector <int> ans;
map<int, int> pos;
for(int bit = 0; bit <= 30; bit++){
vi cur;
for(int i = 1; i <= n; i++){
if((i >> bit) & 1)
cur.pb(i);
}
if(!sz(cur)) continue;
if(sz(cur) == 1){
pos[ask(cur[0])] = cur[0];
End[cur[0]] = 1;
continue;
}
if(sz(cur) == 2){
pos[ask(cur[0])] = cur[0];
pos[ask(cur[1])] = cur[1];
End[cur[0]] = End[cur[1]] = 1;
continue;
}
vi now = elements(cur);
for(auto x : now)
if(!End[x])
pos[x] += (1 << bit);
}
ans.resize(n);
for(auto x : pos)
ans[x.s - 1] = x.f;
return ans;
}/*
int main () {
srand(time(0));
cin >> n;
map<int,int>used;
forn(i, 1, n){
int x = rand() % 10000 + 1;
while(used[x]) x = rand() % 10000 + 1;
a[i] = x;
used[x]=1;
}
if(!used[0]){
a[rand()%n+1]=0;
forn(i,1,n)cout<<a[i]<<" ";
cout << endl;
}
for(auto x : guess(n))
cout << x << " ";
}*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
248 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
248 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
4 ms |
660 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
