#include "bits/stdc++.h"
//#include "doll.h"
using namespace std;
int seg[400001];
int ad;
int swp[400001];
int S = -1;
vector<int> X,Y,C;
void add(int p,int l,int r,int val){
if(r<=ad)return ;
if(l==r){
seg[p] = val;
return ;
}
int md = (l+r)/2;
if(swp[p]==0){
add(p*2,l,md,val);
}else{
add(p*2+1,md+1,r,val);
}
swp[p] = !swp[p];
}
int build(int p,int l,int r){
if(r<=ad)return -1e9;
if(l==r)return seg[p];
int md = (l+r)/2;
int x = build(p*2,l,md);
int y = build(p*2+1,md+1,r);
if(x==-1e9)X.push_back(-1e9);
else X.push_back(x);
Y.push_back(y);
return S--;
}
vector<int> dc(vector<int> lol){
if(lol.size()==1)return lol;
int sz = lol.size();
int add = sz/2;
vector<int> ret;
for(auto i:lol){
cout<<i<<" ";
}
cout<<endl;
for(int j = 0;j+add<sz;j++){
if(lol[j]==-1e9&&lol[j+add]==-1e9){
ret.push_back(-1e9);
continue;
}
if(lol[j]==-1e9)X.push_back(S);
else X.push_back(lol[j]);
Y.push_back(lol[j+add]);
ret.push_back(S--);
}
return dc(ret);
}
void create_circuit(int M, vector<int> A){
S = -1;
X.clear();
Y.clear();
C.clear();
vector<int> adj[M+1];
int N = A.size();
vector<int> lo;
for(int i = 1;i<N;i++){
lo.push_back(A[i]);
}
lo.push_back(0);
int rem = 1;
while(rem<lo.size())rem*=2;
ad = rem - (long long)(lo.size());
for(int i = 0;i<ad;i++){
add(1,1,rem,0);
}
for(auto i:lo)add(1,1,rem,i);
int v = build(1,1,rem);
for(int i = 0;i<X.size();i++){
if(X[i]==-1e9)X[i] = v;
if(Y[i]==-1e9)Y[i] = v;
}
C.push_back(A[0]);
for(int i = 1;i<=M;i++){
if(rem!=1)C.push_back(-1);
else C.push_back(0);
}
answer(C,X,Y);
}
Compilation message
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:71:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
71 | while(rem<lo.size())rem*=2;
| ~~~^~~~~~~~~~
doll.cpp:78:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
78 | for(int i = 0;i<X.size();i++){
| ~^~~~~~~~~
doll.cpp:87:5: error: 'answer' was not declared in this scope
87 | answer(C,X,Y);
| ^~~~~~
