#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef long double ld; #define st first #define nd second #define pb push_back #define mp make_pair #define rep(i,a,b) for(ll i=(ll)a;i<=(ll)b;++i) #define all(a) a.begin(),a.end() #define sz(x) (int)(x).size() const int mxN = 1e6; int p[mxN+7]; int bs(int n){ int pocz = 1, kon = mxN; while(pocz < kon){ int m = (pocz+kon)/2; if(p[m] < n) pocz = m+1; else kon = m; } return pocz; } int main(){ ios_base::sync_with_stdio(0); cin.tie(0); int n; cin >> n; rep(i,1,mxN) p[i] = p[i-1]+__builtin_popcount(i); vector<int> ans; while(n){ int k = bs(n); ans.pb(k); n -= __builtin_popcount(k); } cout << sz(ans) << "\n"; for(auto u : ans) cout << u << " "; 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 | #include <bits/stdc++.h> using namespace std; typedef long long ll; typedef long double ld; #define st first #define nd second #define pb push_back #define mp make_pair #define rep(i,a,b) for(ll i=(ll)a;i<=(ll)b;++i) #define all(a) a.begin(),a.end() #define sz(x) (int)(x).size() const int mxN = 1e6; int p[mxN+7]; int bs(int n){ int pocz = 1, kon = mxN; while(pocz < kon){ int m = (pocz+kon)/2; if(p[m] < n) pocz = m+1; else kon = m; } return pocz; } int main(){ ios_base::sync_with_stdio(0); cin.tie(0); int n; cin >> n; rep(i,1,mxN) p[i] = p[i-1]+__builtin_popcount(i); vector<int> ans; while(n){ int k = bs(n); ans.pb(k); n -= __builtin_popcount(k); } cout << sz(ans) << "\n"; for(auto u : ans) cout << u << " "; cout << "\n"; } |