結果
| 問題 |
No.187 中華風 (Hard)
|
| コンテスト | |
| ユーザー |
Astral__
|
| 提出日時 | 2024-09-15 03:41:59 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 4,309 bytes |
| コンパイル時間 | 13,812 ms |
| コンパイル使用メモリ | 590,484 KB |
| 実行使用メモリ | 6,948 KB |
| 最終ジャッジ日時 | 2024-09-15 03:42:15 |
| 合計ジャッジ時間 | 14,823 ms |
|
ジャッジサーバーID (参考情報) |
judge6 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 3 WA * 22 |
ソースコード
#include <bits/stdc++.h>
#if __has_include(<atcoder/all>)
#include <atcoder/all>
std::ostream &operator<<(std::ostream &os, const atcoder::modint998244353 &v) {
os << v.val();
return os;
}
std::istream &operator>>(std::istream &is, atcoder::modint998244353 &v) {
long long x;
is >> x;
v = x;
return is;
}
std::ostream &operator<<(std::ostream &os, const atcoder::modint1000000007 &v) {
os << v.val();
return os;
}
std::istream &operator>>(std::istream &is, atcoder::modint1000000007 &v) {
long long x;
is >> x;
v = x;
return is;
}
#endif
#include <boost/multiprecision/cpp_dec_float.hpp>
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/rational.hpp>
// 任意長整数型
using Bint = boost::multiprecision::cpp_int;
// 仮数部が10進数で1024桁の浮動小数点数型(TLEしたら小さくする)
using Real = boost::multiprecision::number<boost::multiprecision::cpp_dec_float<1024>>;
using Rat = boost::rational<Bint>;
using namespace std;
using ll = long long;
using pll = pair<ll, ll>;
#define rep(i, s, t) for (ll i = s; i < (ll)(t); i++)
#define rrep(i, s, t) for (ll i = (ll)(t) - 1; i >= (ll)(s); i--)
#define all(x) begin(x), end(x)
#define TT template <typename T>
TT using vec = vector<T>;
TT using vvec = vec<vec<T>>;
TT using vvvec = vec<vvec<T>>;
TT using minheap = priority_queue<T, vector<T>, greater<T>>;
TT using maxheap = priority_queue<T>;
template <class T1, class T2> bool chmin(T1 &x, T2 y) {
return x > y ? (x = y, true) : false;
}
template <class T1, class T2> bool chmax(T1 &x, T2 y) {
return x < y ? (x = y, true) : false;
}
struct io_setup {
io_setup() {
ios::sync_with_stdio(false);
std::cin.tie(nullptr);
cout << fixed << setprecision(15);
}
} io_setup;
template <class T1, class T2>
ostream &operator<<(ostream &os, const pair<T1, T2> &p) {
os << p.first << " " << p.second;
return os;
}
TT ostream &operator<<(ostream &os, const vec<T> &v) {
for (size_t i = 0; i < v.size(); i++) {
os << v[i] << (i + 1 != v.size() ? " " : "");
}
return os;
}
template <typename T, ll 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 <typename T> std::ostream &operator<<(ostream &os, const vvec<T> &v) {
for (size_t i = 0; i < v.size(); i++) {
os << v[i] << (i + 1 != v.size() ? "\n" : "");
}
return os;
}
TT istream &operator>>(istream &is, vec<T> &v) {
for (size_t i = 0; i < v.size(); i++) {
is >> v[i];
}
return is;
}
#if __has_include(<debug/debug.hpp>)
#include <debug/debug.hpp>
#else
#define dbg(...) true
#define DBG(...) true
#endif
namespace CRT {
template <typename T> T extgcd(T a, T b, T &x, T &y) {
if (b == 0) {
x = 1;
y = 0;
return a;
}
T d = extgcd<T>(b, a % b, y, x);
y -= a / b * x;
return d;
}
template <typename T> T modinv(T a, T MOD) {
T x, y;
extgcd(a, MOD, x, y);
return (x % MOD + MOD) % MOD;
}
template <typename T> bool is_feasable(T x0, T m0, T x1, T m1) {
T g = gcd(m0, m1);
return x0 % g == x1 % g;
}
template <typename T> pair<T, T> crt_2(T x0, T m0, T x1, T m1) {
if (m0 == 0 || m1 == 0) {
return make_pair(0, 0);
}
if (x0 < 0 || x0 >= m0) {
x0 %= m0;
if (x0 < 0) x0 += m0;
}
if (x1 < 0 || x1 >= m1) {
x1 %= m1;
if (x1 < 0) x1 += m1;
}
if (m0 < m1) {
swap(x0, x1);
swap(m0, m1);
}
T a, b;
T g = extgcd(m0, m1, a, b);
if (x0 % g != x1 % g) {
return make_pair(0, 0);
}
T lc = lcm(m0, m1);
T u0 = m0 / g, u1 = m1 / g;
T x = (x1 - x0) / g * modinv<T>(u0, u1) % u1;
if (x < 0) x += u1;
x = x * m0 + x0;
return make_pair(x, lc);
}
}; // namespace CRT
int main() {
int n;
cin >> n;
vec<ll> xs(n), ys(n);
rep(i, 0, n) { cin >> xs[i] >> ys[i]; }
Bint c = 0, m = 1;
rep(i, 0, 3) {
auto [new_c, new_m] = CRT::crt_2<Bint>(c, m, xs[i], ys[i]);
c = new_c;
m = new_m;
}
if (m == 0) {
cout << -1 << endl;
return 0;
}
if (c == 0) {
c += m;
}
cout << c << endl;
}
Astral__