結果
問題 | No.2104 Multiply-Add |
ユーザー | rniya |
提出日時 | 2022-10-21 21:46:32 |
言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 7,300 bytes |
コンパイル時間 | 2,317 ms |
コンパイル使用メモリ | 207,000 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-01 06:22:27 |
合計ジャッジ時間 | 3,878 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
01_ | AC * 3 |
other | AC * 32 |
ソースコード
#define LOCAL#include <bits/stdc++.h>using namespace std;#pragma region Macrostypedef long long ll;typedef __int128_t i128;typedef unsigned int uint;typedef unsigned long long ull;#define ALL(x) (x).begin(), (x).end()template <typename T> istream& operator>>(istream& is, vector<T>& v) {for (T& x : v) is >> x;return is;}template <typename T> ostream& operator<<(ostream& os, const vector<T>& v) {for (size_t i = 0; i < v.size(); i++) {os << v[i] << (i + 1 == v.size() ? "" : " ");}return os;}template <typename T, typename U> ostream& operator<<(ostream& os, const pair<T, U>& p) {os << '(' << p.first << ',' << p.second << ')';return os;}template <typename T, typename U> ostream& operator<<(ostream& os, const map<T, U>& m) {os << '{';for (auto itr = m.begin(); itr != m.end();) {os << '(' << itr->first << ',' << itr->second << ')';if (++itr != m.end()) os << ',';}os << '}';return os;}template <typename T, typename U> ostream& operator<<(ostream& os, const unordered_map<T, U>& m) {os << '{';for (auto itr = m.begin(); itr != m.end();) {os << '(' << itr->first << ',' << itr->second << ')';if (++itr != m.end()) os << ',';}os << '}';return os;}template <typename T> ostream& operator<<(ostream& os, const set<T>& s) {os << '{';for (auto itr = s.begin(); itr != s.end();) {os << *itr;if (++itr != s.end()) os << ',';}os << '}';return os;}template <typename T> ostream& operator<<(ostream& os, const multiset<T>& s) {os << '{';for (auto itr = s.begin(); itr != s.end();) {os << *itr;if (++itr != s.end()) os << ',';}os << '}';return os;}template <typename T> ostream& operator<<(ostream& os, const unordered_set<T>& s) {os << '{';for (auto itr = s.begin(); itr != s.end();) {os << *itr;if (++itr != s.end()) os << ',';}os << '}';return os;}template <typename T> ostream& operator<<(ostream& os, const deque<T>& v) {for (size_t i = 0; i < v.size(); i++) {os << v[i] << (i + 1 == v.size() ? "" : " ");}return os;}template <typename T, size_t N> ostream& operator<<(ostream& os, const array<T, N>& v) {for (size_t i = 0; i < N; i++) {os << v[i] << (i + 1 == N ? "" : " ");}return os;}template <int i, typename T> void print_tuple(ostream&, const T&) {}template <int i, typename T, typename H, class... Args> void print_tuple(ostream& os, const T& t) {if (i) os << ',';os << get<i>(t);print_tuple<i + 1, T, Args...>(os, t);}template <typename... Args> ostream& operator<<(ostream& os, const tuple<Args...>& t) {os << '{';print_tuple<0, tuple<Args...>, Args...>(os, t);return os << '}';}void debug_out() { cerr << '\n'; }template <class Head, class... Tail> void debug_out(Head&& head, Tail&&... tail) {cerr << head;if (sizeof...(Tail) > 0) cerr << ", ";debug_out(move(tail)...);}#ifdef LOCAL#define debug(...) \cerr << " "; \cerr << #__VA_ARGS__ << " :[" << __LINE__ << ":" << __FUNCTION__ << "]" << '\n'; \cerr << " "; \debug_out(__VA_ARGS__)#else#define debug(...) void(0)#endiftemplate <typename T> T gcd(T x, T y) { return y != 0 ? gcd(y, x % y) : x; }template <typename T> T lcm(T x, T y) { return x / gcd(x, y) * y; }int topbit(signed t) { return t == 0 ? -1 : 31 - __builtin_clz(t); }int topbit(long long t) { return t == 0 ? -1 : 63 - __builtin_clzll(t); }int botbit(signed a) { return a == 0 ? 32 : __builtin_ctz(a); }int botbit(long long a) { return a == 0 ? 64 : __builtin_ctzll(a); }int popcount(signed t) { return __builtin_popcount(t); }int popcount(long long t) { return __builtin_popcountll(t); }bool ispow2(int i) { return i && (i & -i) == i; }long long MSK(int n) { return (1LL << n) - 1; }template <class T> T ceil(T x, T y) {assert(y >= 1);return (x > 0 ? (x + y - 1) / y : x / y);}template <class T> T floor(T x, T y) {assert(y >= 1);return (x > 0 ? x / y : (x - y + 1) / y);}template <class T1, class T2> inline bool chmin(T1& a, T2 b) {if (a > b) {a = b;return true;}return false;}template <class T1, class T2> inline bool chmax(T1& a, T2 b) {if (a < b) {a = b;return true;}return false;}template <typename T> void mkuni(vector<T>& v) {sort(v.begin(), v.end());v.erase(unique(v.begin(), v.end()), v.end());}template <typename T> int lwb(const vector<T>& v, const T& x) { return lower_bound(v.begin(), v.end(), x) - v.begin(); }#pragma endregionconst int INF = 1e9;const long long IINF = 1e18;const int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};const char dir[4] = {'D', 'R', 'U', 'L'};const long long MOD = 1000000007;// const long long MOD = 998244353;int main() {cin.tie(0);ios::sync_with_stdio(false);ll a, b, c, d;cin >> a >> b >> c >> d;if (gcd(abs(a), abs(b)) != gcd(abs(c), abs(d))) {cout << -1 << '\n';return 0;}if (a == 0 and b == 0) {assert(c == 0 and d == 0);cout << 0 << '\n';return 0;}ll x = a, y = b;vector<pair<int, int>> ans;auto op = [&](int t, int k) {if (t == 1)x += 1LL * k * y;elsey += 1LL * k * x;ans.emplace_back(t, k);};auto ngswap = [&](int t) { // t = 1 : (x, y) -> (y, -x), t = 2 ; (x, y) -> (-y, x)op(t, 1); // (x + y, y)op(3 - t, -1); // (x + y, -x)op(t, 1); // (y, -x)};if (x < 0) {ngswap(1);if (x < 0) ngswap(1);} else if (y < 0)ngswap(2);assert(x >= 0 and y >= 0);while (x > 0 and y > 0) {if (x > y)op(1, -(x / y));elseop(2, -(y / x));}ll z = c, w = d;vector<pair<int, int>> ans2;auto op2 = [&](int t, int k) {if (t == 1)z += 1LL * k * w;elsew += 1LL * k * z;ans2.emplace_back(t, k);};auto ngswap2 = [&](int t) { // t = 1 : (x, y) -> (y, -x), t = 2 ; (x, y) -> (-y, x)op2(t, 1); // (x + y, y)op2(3 - t, -1); // (x + y, -x)op2(t, 1); // (y, -x)};if (z < 0) {ngswap2(1);if (z < 0) ngswap2(1);} else if (w < 0)ngswap2(2);assert(z >= 0 and w >= 0);while (z > 0 and w > 0) {if (z > w)op2(1, -(z / w));elseop2(2, -(w / z));};if (x != z) {if (x > 0) {op(2, 1);op(1, -1);} else {op(1, 1);op(2, -1);}}reverse(ans2.begin(), ans2.end());for (auto& p : ans2) op(p.first, -p.second);assert(x == c and y == d);cout << ans.size() << '\n';for (auto& p : ans) cout << p.first << ' ' << p.second << '\n';return 0;}