#include<bits/stdc++.h>
using namespace std;
#define fr first
#define sc second
using ll=long long;
const int S=100;
vector<int>dag[S+6];
int n;
void add(int j)
{
int id=2;
for(int i=1;i<=j;i++)
{
dag[id].push_back(id+2);
id+=2;
}
n=id+1;
}
int main()
{
ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
int k;cin>>k;
bool check=0;
int sg;
if(k==1)
{
cout<<2<<"\n";
cout<<2<<" "<<-1<<"\n";
cout<<-1<<" "<<-1;
return 0;
}
for(int i=30;i>=0;i--)
{
int m=k&(1<<i);
if(m==0)continue;
if(!check)
{
if(i==0)break;
sg=i;
add(i);
check=1;
continue;
}
int id=2+2*i+1;
if(i==0)id=1;
dag[id].push_back(n);
}
for(int i=1;i<n;i++)dag[i].push_back(i+1);
dag[n].push_back(-1);
dag[n].push_back(-1);
//return 0;
cout<<n<<"\n";
for(int i=1;i<=n;i++)
{
for(auto it:dag[i])cout<<it<<" ";
if(dag[i].size()<2)cout<<-1;
cout<<"\n";
}
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | #include<bits/stdc++.h> using namespace std; #define fr first #define sc second using ll=long long; const int S=100; vector<int>dag[S+6]; int n; void add(int j) { int id=2; for(int i=1;i<=j;i++) { dag[id].push_back(id+2); id+=2; } n=id+1; } int main() { ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0); int k;cin>>k; bool check=0; int sg; if(k==1) { cout<<2<<"\n"; cout<<2<<" "<<-1<<"\n"; cout<<-1<<" "<<-1; return 0; } for(int i=30;i>=0;i--) { int m=k&(1<<i); if(m==0)continue; if(!check) { if(i==0)break; sg=i; add(i); check=1; continue; } int id=2+2*i+1; if(i==0)id=1; dag[id].push_back(n); } for(int i=1;i<n;i++)dag[i].push_back(i+1); dag[n].push_back(-1); dag[n].push_back(-1); //return 0; cout<<n<<"\n"; for(int i=1;i<=n;i++) { for(auto it:dag[i])cout<<it<<" "; if(dag[i].size()<2)cout<<-1; cout<<"\n"; } } |
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