#include <bits/stdc++.h> using namespace std; #define int long long #define ll long long #define pb push_back #define nd second #define st first #define sz size #define forr(i, n) for(int i=1;i<=n;i++) const ll infl=1e18+90; const int inf=1e9+90; const int roz=1e6; int pre[roz+69]; vector<int> wek; signed main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int n; cin>>n; for(int i=1;i<=roz;i++) { pre[i]=pre[i-1]+__builtin_popcount(i); } for(int i=roz;i>=1;i--) { if(pre[i-1]<n) { wek.pb(i); n-=(pre[i]-pre[i-1]); } } cout<<wek.size()<<"\n"; for(auto it:wek) cout<<it<<" "; }
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 | #include <bits/stdc++.h> using namespace std; #define int long long #define ll long long #define pb push_back #define nd second #define st first #define sz size #define forr(i, n) for(int i=1;i<=n;i++) const ll infl=1e18+90; const int inf=1e9+90; const int roz=1e6; int pre[roz+69]; vector<int> wek; signed main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int n; cin>>n; for(int i=1;i<=roz;i++) { pre[i]=pre[i-1]+__builtin_popcount(i); } for(int i=roz;i>=1;i--) { if(pre[i-1]<n) { wek.pb(i); n-=(pre[i]-pre[i-1]); } } cout<<wek.size()<<"\n"; for(auto it:wek) cout<<it<<" "; } |