結果
問題 | No.1626 三角形の構築 |
ユーザー | null |
提出日時 | 2021-05-30 00:47:20 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 35 ms / 2,000 ms |
コード長 | 7,912 bytes |
コンパイル時間 | 13,907 ms |
コンパイル使用メモリ | 611,080 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-10-12 11:29:57 |
合計ジャッジ時間 | 15,145 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,820 KB |
testcase_01 | AC | 4 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,820 KB |
testcase_03 | AC | 2 ms
6,816 KB |
testcase_04 | AC | 2 ms
6,816 KB |
testcase_05 | AC | 1 ms
6,816 KB |
testcase_06 | AC | 2 ms
6,816 KB |
testcase_07 | AC | 4 ms
6,816 KB |
testcase_08 | AC | 5 ms
6,816 KB |
testcase_09 | AC | 5 ms
6,820 KB |
testcase_10 | AC | 4 ms
6,820 KB |
testcase_11 | AC | 4 ms
6,816 KB |
testcase_12 | AC | 3 ms
6,816 KB |
testcase_13 | AC | 3 ms
6,816 KB |
testcase_14 | AC | 3 ms
6,816 KB |
testcase_15 | AC | 3 ms
6,816 KB |
testcase_16 | AC | 4 ms
6,816 KB |
testcase_17 | AC | 4 ms
6,816 KB |
testcase_18 | AC | 3 ms
6,820 KB |
testcase_19 | AC | 4 ms
6,820 KB |
testcase_20 | AC | 4 ms
6,816 KB |
testcase_21 | AC | 4 ms
6,816 KB |
testcase_22 | AC | 5 ms
6,816 KB |
testcase_23 | AC | 5 ms
6,816 KB |
testcase_24 | AC | 16 ms
6,816 KB |
testcase_25 | AC | 35 ms
6,816 KB |
testcase_26 | AC | 4 ms
6,816 KB |
ソースコード
/* このコード、と~おれ! Be accepted! ∧_∧ (。・ω・。)つ━☆・*。 ⊂ ノ ・゜+. しーJ °。+ *´¨) .· ´¸.·*´¨) ¸.·*¨) (¸.·´ (¸.·'* ☆ */ #include <cstdio> #include <algorithm> #include <string> #include <cmath> #include <cstring> #include <vector> #include <numeric> #include <iostream> #include <random> #include <map> #include <unordered_map> #include <queue> #include <regex> #include <functional> #include <complex> #include <list> #include <cassert> #include <iomanip> #include <set> #include <stack> #include <bitset> #include <array> #include <chrono> //#pragma GCC target("arch=skylake-avx512") #pragma GCC target("avx2") //#pragma GCC optimize("O3") #pragma GCC optimize("Ofast") #pragma GCC target("sse4") #pragma GCC optimize("unroll-loops") //#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") #define repeat(i, n, m) for(int i = n; i < (m); ++i) #define rep(i, n) for(int i = 0; i < (n); ++i) #define printynl(a) printf(a ? "yes\n" : "no\n") #define printyn(a) printf(a ? "Yes\n" : "No\n") #define printYN(a) printf(a ? "YES\n" : "NO\n") #define printim(a) printf(a ? "possible\n" : "imposible\n") #define printdb(a) printf("%.50lf\n", a) #define printLdb(a) printf("%.50Lf\n", a) #define printdbd(a) printf("%.16lf\n", a) #define prints(s) printf("%s\n", s.c_str()) #define all(x) (x).begin(), (x).end() #define deg_to_rad(deg) (((deg)/360.0L)*2.0L*PI) #define rad_to_deg(rad) (((rad)/2.0L/PI)*360.0L) #define Please return #define AC 0 #define manhattan_dist(a, b, c, d) (abs(a - c) + abs(b - d)) using ll = long long; using ull = unsigned long long; constexpr int INF = 1073741823; constexpr int MINF = -1073741823; constexpr ll LINF = ll(4661686018427387903); constexpr ll MOD = 1e9 + 7; constexpr ll mod = 998244353; constexpr long double eps = 1e-6; const long double PI = acosl(-1.0L); using namespace std; void scans(string& str) { char c; str = ""; scanf("%c", &c); if (c == '\n')scanf("%c", &c); while (c != '\n' && c != -1 && c != ' ') { str += c; scanf("%c", &c); } } void scanc(char& str) { char c; scanf("%c", &c); if (c == -1)return; while (c == '\n') { scanf("%c", &c); } str = c; } double acot(double x) { return PI / 2 - atan(x); } ll LSB(ll n) { return (n & (-n)); } template<typename T> inline T chmin(T& a, const T& b) { if (a > b)a = b; return a; } template<typename T> inline T chmax(T& a, const T& b) { if (a < b)a = b; return a; } //cpp_int #if __has_include(<boost/multiprecision/cpp_int.hpp>) #include <boost/multiprecision/cpp_int.hpp> #include <boost/multiprecision/cpp_dec_float.hpp> using namespace boost::multiprecision; #else using cpp_int = ll; #endif //atcoder library #if __has_include(<atcoder/all>) #include <atcoder/all> //using namespace atcoder; #endif /* random_device seed_gen; mt19937 engine(seed_gen()); uniform_int_distribution dist(1, 100); */ /*----------------------------------------------------------------------------------*/ ll sq(ll n) { ll ng = -1, ok = 3 * 1e9; while (abs(ng - ok) > 1) { ll mid = (ok + ng) / 2; if (mid * mid >= n)ok = mid; else ng = mid; } if (ok * ok == n)return ok; else return -1; } struct Miller { const vector<long long> v = { 2 , 7 , 61 }; // < 4,759,123,141 // x^k (mod m) long long modpow(long long x, long long k, long long m) { long long res = 1; while (k) { if (k & 1) { res = res * x % m; } k /= 2; x = x * x % m; } return res; } // check if n is prime bool check(long long n) { if (n < 2) { return false; } long long d = n - 1; long long s = 0; while (d % 2 == 0) { d /= 2; s++; } for (long long a : v) { if (a == n) { return true; } if (modpow(a, d, n) != 1) { bool ok = true; for (long long r = 0; r < s; r++) { if (modpow(a, d * (1LL << r), n) == n - 1) { ok = false; break; } } if (ok) { return false; } } } return true; } }; struct Rho { mt19937 mt; Miller miller; long long c; Rho() { mt.seed(clock()); } inline long long f(long long x, long long n) { return (x * x + c) % n; } long long check(long long n) { if (n == 4) { return 2; } c = mt() % n; long long x = mt() % n; long long y = x; long long d = 1; while (d == 1) { x = f(x, n); y = f(f(y, n), n); d = gcd(abs(x - y), n); } if (d == n) { return -1; } return d; } vector<long long> factor(long long n) { if (n <= 1) { return {}; } if (miller.check(n)) { return { n }; } long long res = -1; while (res == -1) { res = check(n); } vector<long long> fa = factor(res); vector<long long> fb = factor(n / res); fa.insert(fa.end(), fb.begin(), fb.end()); return fa; } }; Rho rho; void dfs(const map<ll, ll>& f, ll num, const map<ll, ll>::iterator &ite, vector<ll> &d) { if (ite == f.end()) { d.push_back(num); return; } rep(i, ite->second + 1) { dfs(f, num, next(ite), d); num *= ite->first; } } vector<ll> divisor(ll n) { map<ll, ll> mp; for (const auto& aa : rho.factor(n))++mp[aa]; vector<ll>ret; dfs(mp, 1, mp.begin(), ret); return ret; } #include "testlib.h" int main(int argc, char **argv) { registerValidation(argc, argv); int T; T = inf.readInt(1, 20); inf.readEoln(); while (T--) { ll s, t; s = inf.readInt(1, 750000000); inf.readSpace(); t = inf.readLong(1ll, 3000000000ll); inf.readEoln(); s *= 4; s = s * s; if (s % t) { puts("0"); continue; } s /= t; vector<ll> d = divisor(s); ll a = -1, b = -1, c = -1, x = 0, y = 0, z = 0; set<multiset<ll>> ans; for (const auto& aa : d) { ll k = s / aa, r = t - aa; x = aa; if (r <= 0 or r * r - 4 * k < 0)continue; ll p = sq(r * r - 4 * k); if (p == -1)continue; if ((r - p) > 0 and (r - p) % 2 == 0) { y = (r - p) / 2; z = t - x - y; if ((x + y) % 2 or (y + z) % 2 or (z + x) % 2)continue; a = y + z; b = z + x; c = x + y; a /= 2; b /= 2; c /= 2; ans.insert({ a, b, c }); } if ((r + p) > 0 and (r + p) % 2 == 0) { y = (r + p) / 2; z = t - x - y; if ((x + y) % 2 or (y + z) % 2 or (z + x) % 2)continue; a = y + z; b = z + x; c = x + y; a /= 2; b /= 2; c /= 2; ans.insert({ a, b, c }); } } if (ans.size() == 0) { puts("0"); continue; } printf("%d\n", (int)ans.size()); for (const auto& aa : ans) { for (const auto& aaa : aa)printf("%lld ", aaa); puts(""); } } inf.readEof(); Please AC; }