#include <bits/stdc++.h> #include <math.h> using namespace std; #define endl "\n" #define mp make_pair #define st first #define nd second #define pii pair<int, int> #define pb push_back #define _upgrade ios_base::sync_with_stdio(0), cout.setf(ios::fixed), cout.precision(10), cin.tie(0), cout.tie(0); #define REP(i, n) for (int i = 0; i < (n); ++i) #define FWD(i, a, b) for (int i = (a); i < (b); ++i) #define rep(i, n) for (int i = 0; i < (n); ++i) #define fwd(i, a, b) for (int i = (a); i < (b); ++i) #define all(c) (c).begin(), (c).end() #define sz(X) (int)((X).size()) #define what(x) cerr << #x << " is " << x << endl; #define int long long ostream &operator<<(ostream &out, string str) { for (char c : str) out << c; return out; } template <class L, class R> ostream &operator<<(ostream &out, pair<L, R> p) { return out << "(" << p.st << ", " << p.nd << ")"; } template <class T> auto operator<<(ostream &out, T a) -> decltype(a.begin(), out) { out << '{'; for (auto it = a.begin(); it != a.end(); it = next(it)) out << (it != a.begin() ? ", " : "") << *it; return out << '}'; } void dump() { cerr << "\n"; } template <class T, class... Ts> void dump(T a, Ts... x) { cerr << a << ", "; dump(x...); } #define debug(...) cerr << "[" #__VA_ARGS__ "]: ", dump(__VA_ARGS__) const int MAXM = 200; vector<int> tab[MAXM + 10]; void wypisz(vector<int> X) { cout << (X.size() >= 1 ? X[0] : -1) << " " << (X.size() >= 2 ? X[1] : -1) << endl; } int32_t main() { _upgrade; tab[1].push_back(2); tab[1].push_back(3); int N = 100; int k; cin >> k; int cur = 1; while (k > 0) { tab[cur * 3 - 1].push_back(cur * 3 + 1); tab[cur * 3].push_back(cur * 3 + 1); tab[cur * 3 + 1].push_back(cur * 3 + 2); tab[cur * 3 + 1].push_back(cur * 3 + 3); if (k & 1) tab[cur * 3 - 1].push_back(N); k = k / 2; debug(k); cur++; } cout << N << endl; for (int i = 1; i <= N; i++) { wypisz(tab[i]); } }
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 60 61 62 63 64 65 66 67 68 69 70 | #include <bits/stdc++.h> #include <math.h> using namespace std; #define endl "\n" #define mp make_pair #define st first #define nd second #define pii pair<int, int> #define pb push_back #define _upgrade ios_base::sync_with_stdio(0), cout.setf(ios::fixed), cout.precision(10), cin.tie(0), cout.tie(0); #define REP(i, n) for (int i = 0; i < (n); ++i) #define FWD(i, a, b) for (int i = (a); i < (b); ++i) #define rep(i, n) for (int i = 0; i < (n); ++i) #define fwd(i, a, b) for (int i = (a); i < (b); ++i) #define all(c) (c).begin(), (c).end() #define sz(X) (int)((X).size()) #define what(x) cerr << #x << " is " << x << endl; #define int long long ostream &operator<<(ostream &out, string str) { for (char c : str) out << c; return out; } template <class L, class R> ostream &operator<<(ostream &out, pair<L, R> p) { return out << "(" << p.st << ", " << p.nd << ")"; } template <class T> auto operator<<(ostream &out, T a) -> decltype(a.begin(), out) { out << '{'; for (auto it = a.begin(); it != a.end(); it = next(it)) out << (it != a.begin() ? ", " : "") << *it; return out << '}'; } void dump() { cerr << "\n"; } template <class T, class... Ts> void dump(T a, Ts... x) { cerr << a << ", "; dump(x...); } #define debug(...) cerr << "[" #__VA_ARGS__ "]: ", dump(__VA_ARGS__) const int MAXM = 200; vector<int> tab[MAXM + 10]; void wypisz(vector<int> X) { cout << (X.size() >= 1 ? X[0] : -1) << " " << (X.size() >= 2 ? X[1] : -1) << endl; } int32_t main() { _upgrade; tab[1].push_back(2); tab[1].push_back(3); int N = 100; int k; cin >> k; int cur = 1; while (k > 0) { tab[cur * 3 - 1].push_back(cur * 3 + 1); tab[cur * 3].push_back(cur * 3 + 1); tab[cur * 3 + 1].push_back(cur * 3 + 2); tab[cur * 3 + 1].push_back(cur * 3 + 3); if (k & 1) tab[cur * 3 - 1].push_back(N); k = k / 2; debug(k); cur++; } cout << N << endl; for (int i = 1; i <= N; i++) { wypisz(tab[i]); } } |