//#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] = 1;
for(auto x : now)
if(!was[x])
v.pb(x ^ f);
v.pb(f);
return v;
}
int End[maxn];
vector<int> guess(int n) {
vector <int> ans;
map<int, int> pos;
int f=ask(1);
for(int bit = 0; bit <= 30; bit++){
vi cur;
for(int i = 0; i < n; i++){
if((i >> bit) & 1)
cur.pb(i+1);
}
if(!sz(cur)) break;
vi b=get_pairwise_xor(cur);
cur.pb(0);
vi now=get_pairwise_xor(cur);
now.erase(now.begin());
for(auto d:b)
now.erase(find(all(now), d));
for(auto &d:now)
d ^= f;
forn(i,0,sz(now)-1)
now.erase(now.begin()+i);
for(auto x:now){
pos[x]+=(1<<bit);
}
}
ans.resize(n);
ans[0]=f;
for(auto x : pos)
ans[x.s] = x.f;
return ans;
}/*
int main () {
cin >> n;
map<int,int>used;
forn(i, 0, n-1){
a[i]=i
}
for(auto x : guess(n))
cout << x << " ";
}*/
Compilation message
Xoractive.cpp: In function 'vi elements(vi)':
Xoractive.cpp:50:11: error: 'get_pairwise_xor' was not declared in this scope
vi now = get_pairwise_xor(cur), v;
^~~~~~~~~~~~~~~~
Xoractive.cpp:51:10: error: 'ask' was not declared in this scope
int f = ask(cur[0]);
^~~
Xoractive.cpp:61:4: error: 'v' was not declared in this scope
v.pb(x ^ f);
^
Xoractive.cpp:62:2: error: 'v' was not declared in this scope
v.pb(f);
^
Xoractive.cpp:62:2: note: suggested alternative: 'vi'
v.pb(f);
^
vi
Xoractive.cpp: In function 'std::vector<int> guess(int)':
Xoractive.cpp:69:8: error: 'ask' was not declared in this scope
int f=ask(1);
^~~
Xoractive.cpp:77:8: error: 'get_pairwise_xor' was not declared in this scope
vi b=get_pairwise_xor(cur);
^~~~~~~~~~~~~~~~
