#include <bits/stdc++.h>
#define vc vector
using namespace std;
/*void answer(vc<int> c, vc<int> x, vc<int> y){
for(auto v: c) cout << v << " ";cout << endl;
for(auto v: x) cout << v << " ";cout << endl;
for(auto v: y) cout << v << " ";cout << endl;
}*/
int rev(int x, const int k){
int ret=0;
for(int i=0;i<k;++i) if(x&(1<<i)) ret+=(1<<(k-i-1));
return ret;
}
void create_circuit(int m, vc<int> a){
a.push_back(0);
int k=0;
while(a.size()>(1<<k)) ++k;
int zac=(1<<k) -(int) a.size();
//cout << zac << " "<< k <<" " << a.size() << endl;
vc<int> x, y;
int cnt=0;
vc<pair<int, int>> red(1<<k, make_pair(-1, -1));
int bla=0;
function<int (int, int)> solve=[&](int l, int r){
int mojid=++cnt;
int mid=(l+r)/2;
x.push_back(INT_MAX), y.push_back(INT_MAX);
if(r-l==2){
if(l>=zac) red[rev(l, k)]=make_pair(mojid-1, 0);
else x[mojid-1]=-1;
red[rev(l+1, k)]=make_pair(mojid-1, 1);
}
else{
if(mid<=zac) x[mojid-1]=-1;
else x[mojid-1]=-solve(l, mid);
y[mojid-1]=-solve(mid, r);
}
return mojid;
};
solve(0, 1<<k);
for(int i=0, cur=0;i<(1<<k);++i) if(red[i]!=make_pair(-1, -1)){
//cout << red[i].first << " ";
if(red[i].second==0) x[red[i].first]=a[cur++];
if(red[i].second==1) y[red[i].first]=a[cur++];
//cout << cur << " ";
}
//cout << endl;
answer(vc<int>(m+1, -1), x, y);
}
Compilation message
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:22:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
22 | while(a.size()>(1<<k)) ++k;
| ~~~~~~~~^~~~~~~
doll.cpp:58:5: error: 'answer' was not declared in this scope
58 | answer(vc<int>(m+1, -1), x, y);
| ^~~~~~
doll.cpp:30:9: warning: unused variable 'bla' [-Wunused-variable]
30 | int bla=0;
| ^~~
