#include <bits/stdc++.h> using namespace std; const int MAXN = 1000010; int sum[MAXN]; int find_bop(int n) { int l = 1; int r = n; while (l < r) { int m = (l + r) / 2; if (sum[m] >= n) { r = m; } else { l = m + 1; } } return l; } int main() { int n; scanf("%d", &n); for (int i = 1; i <= n; i++) { sum[i] = sum[i - 1] + __builtin_popcount(i); } vector<int> out; while (n > 0) { int x = find_bop(n); out.push_back(x); n -= __builtin_popcount(x); } printf("%d\n", out.size()); for (auto x : out) printf("%d ", x); puts(""); }
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 | #include <bits/stdc++.h> using namespace std; const int MAXN = 1000010; int sum[MAXN]; int find_bop(int n) { int l = 1; int r = n; while (l < r) { int m = (l + r) / 2; if (sum[m] >= n) { r = m; } else { l = m + 1; } } return l; } int main() { int n; scanf("%d", &n); for (int i = 1; i <= n; i++) { sum[i] = sum[i - 1] + __builtin_popcount(i); } vector<int> out; while (n > 0) { int x = find_bop(n); out.push_back(x); n -= __builtin_popcount(x); } printf("%d\n", out.size()); for (auto x : out) printf("%d ", x); puts(""); } |