結果
| 問題 |
No.2104 Multiply-Add
|
| コンテスト | |
| ユーザー |
 siganai
|
| 提出日時 | 2022-10-21 22:09:05 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 2 ms / 2,000 ms |
| コード長 | 6,367 bytes |
| コンパイル時間 | 1,988 ms |
| コンパイル使用メモリ | 200,824 KB |
| 最終ジャッジ日時 | 2025-02-08 10:08:00 |
|
ジャッジサーバーID （参考情報） |
judge3 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 32 |
ソースコード
//#pragma GCC target("avx")
//#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#ifdef LOCAL
#include <debug.hpp>
#define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#define debug(...) (static_cast<void>(0))
#endif
using namespace std;
using ll = long long;
using ld = long double;
using pll = pair<ll,ll>;
using pii = pair<int,int>;
using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using vl = vector<ll>;
using vvl = vector<vl>;
using vvvl = vector<vvl>;
using vpii = vector<pii>;
using vpll = vector<pll>;
using vs = vector<string>;
template<class T> using pq = priority_queue<T,vector<T>,greater<T>>;
#define overload4(_1, _2, _3, _4, name, ...) name
#define overload3(a,b,c,name,...) name
#define rep1(n) for (ll UNUSED_NUMBER = 0; UNUSED_NUMBER < (n); ++UNUSED_NUMBER)
#define rep2(i, n) for (ll i = 0; i < (n); ++i)
#define rep3(i, a, b) for (ll i = (a); i < (b); ++i)
#define rep4(i, a, b, c) for (ll i = (a); i < (b); i += (c))
#define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)
#define rrep1(n) for(ll i = (n) - 1;i >= 0;i--)
#define rrep2(i,n) for(ll i = (n) - 1;i >= 0;i--)
#define rrep3(i,a,b) for(ll i = (b) - 1;i >= (a);i--)
#define rrep4(i,a,b,c) for(ll i = (a) + ((b)-(a)-1) / (c) * (c);i >= (a);i -= c)
#define rrep(...) overload4(__VA_ARGS__, rrep4, rrep3, rrep2, rrep1)(__VA_ARGS__)
#define all1(i) begin(i),end(i)
#define all2(i,a) begin(i),begin(i)+a
#define all3(i,a,b) begin(i)+a,begin(i)+b
#define all(...) overload3(__VA_ARGS__, all3, all2, all1)(__VA_ARGS__)
#define sum(...) accumulate(all(__VA_ARGS__),0LL)
template<class T> bool chmin(T &a, const T &b){ if(a > b){ a = b; return 1; } else return 0; }
template<class T> bool chmax(T &a, const T &b){ if(a < b){ a = b; return 1; } else return 0; }
template<class T> auto min(const T& a){ return *min_element(all(a)); }
template<class T> auto max(const T& a){ return *max_element(all(a)); }
template<class... Ts> void in(Ts&... t);
#define INT(...) int __VA_ARGS__; in(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__; in(__VA_ARGS__)
#define STR(...) string __VA_ARGS__; in(__VA_ARGS__)
#define CHR(...) char __VA_ARGS__; in(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__; in(__VA_ARGS__)
#define LD(...) ld __VA_ARGS__; in(__VA_ARGS__)
#define VEC(type, name, size) vector<type> name(size); in(name)
#define VV(type, name, h, w) vector<vector<type>> name(h, vector<type>(w)); in(name)
ll intpow(ll a, ll b){ ll ans = 1; while(b){if(b & 1) ans *= a; a *= a; b /= 2;} return ans;}
ll modpow(ll a, ll b, ll p){ ll ans = 1; a %= p;while(b){ if(b & 1) (ans *= a) %= p; (a *= a) %= p; b /= 2; } return ans; }
ll GCD(ll a,ll b) { if(a == 0 || b == 0) return a + b; if(a % b == 0) return b; else return GCD(b,a%b);}
ll LCM(ll a,ll b) { if(a == 0) return b; if(b == 0) return a;return a / GCD(a,b) * b;}
namespace IO{
#define VOID(a) decltype(void(a))
struct setting{ setting(){cin.tie(nullptr); ios::sync_with_stdio(false);fixed(cout); cout.precision(12);}} setting;
template<int I> struct P : P<I-1>{};
template<> struct P<0>{};
template<class T> void i(T& t){ i(t, P<3>{}); }
void i(vector<bool>::reference t, P<3>){ int a; i(a); t = a; }
template<class T> auto i(T& t, P<2>) -> VOID(cin >> t){ cin >> t; }
template<class T> auto i(T& t, P<1>) -> VOID(begin(t)){ for(auto&& x : t) i(x); }
template<class T, size_t... idx> void ituple(T& t, index_sequence<idx...>){
in(get<idx>(t)...);}
template<class T> auto i(T& t, P<0>) -> VOID(tuple_size<T>{}){
ituple(t, make_index_sequence<tuple_size<T>::value>{});}
#undef VOID
}
#define unpack(a) (void)initializer_list<int>{(a, 0)...}
template<class... Ts> void in(Ts&... t){ unpack(IO :: i(t)); }
#undef unpack
//constexpr int mod = 1000000007;
constexpr int mod = 998244353;
static const double PI = 3.1415926535897932;
template <class F> struct REC {
F f;
REC(F &&f_) : f(forward<F>(f_)) {}
template <class... Args> auto operator()(Args &&...args) const { return f(*this, forward<Args>(args)...); }};
int main() {
INT(a,b,c,d);
if(abs(GCD(a,b)) != abs(GCD(c,d))) {
cout << -1 << '\n';
return 0;
}
vpii x;
int aa = a, bb = b;
while(aa != 0 && bb != 0) {
if(abs(aa) <= abs(bb)) {
int k = abs(bb) / abs(aa);
if((bb > 0 && aa > 0) || (bb < 0 && aa < 0)) {
x.emplace_back(2,-k);
bb -= k * aa;
}
else {
x.emplace_back(2,k);
bb += k * aa;
}
}
else {
int k = abs(aa) / abs(bb);
if((bb > 0 && aa > 0) || (bb < 0 && aa < 0)) {
x.emplace_back(1,-k);
aa -= k * bb;
}
else {
x.emplace_back(1,k);
aa += k * bb;
}
}
}
vpii y;
int cc = c, dd = d;
while(cc != 0 && dd != 0) {
if(abs(cc) <= abs(dd)) {
int k = abs(dd) / abs(cc);
if((dd > 0 && cc > 0) || (dd < 0 && cc < 0)) {
y.emplace_back(2,k);
dd -= k * cc;
}
else {
y.emplace_back(2,-k);
dd += k * cc;
}
}
else {
int k = abs(cc) / abs(dd);
if((dd > 0 && cc > 0) || (dd < 0 && cc < 0)) {
y.emplace_back(1,k);
cc -= k * dd;
}
else {
y.emplace_back(1,-k);
cc += k * dd;
}
}
debug(cc,dd);
}
debug(aa,bb,x);
debug(cc,dd,y);
if(aa == 0) {
x.emplace_back(1,1);
aa = bb;
}
else {
x.emplace_back(2,1);
bb = aa;
}
if(aa == cc) {
x.emplace_back(2,-1);
bb = 0;
}
else if(bb == dd) {
x.emplace_back(1,-1);
aa = 0;
}
else if(aa == -cc) {
x.emplace_back(1,-2);
aa = -aa;
x.emplace_back(2,1);
bb = 0;
}
else {
x.emplace_back(2,-2);
bb = -bb;
x.emplace_back(1,1);
aa = 0;
}
debug(aa,bb,cc,dd);
rrep(i,y.size()) x.emplace_back(y[i].first,y[i].second);
cout << x.size() << '\n';
rep(i,x.size()) {
cout << x[i].first << " " << x[i].second << '\n';
}
}