#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"; } |
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