結果
問題 | No.2953 Maximum Right Triangle |
ユーザー | nono00 |
提出日時 | 2024-11-08 22:32:13 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 3,133 bytes |
コンパイル時間 | 3,172 ms |
コンパイル使用メモリ | 244,688 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-08 22:32:17 |
合計ジャッジ時間 | 3,755 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; template <class T> using max_heap = priority_queue<T>; template <class T> using min_heap = priority_queue<T, vector<T>, greater<T>>; #define rep(i, l, r) for (ll i = (l); i < (r); i++) #define rrep(i, r, l) for (ll i = (r); i-- > (l);) #define all(x) begin(x), end(x) template <class T> bool chmin(T& lhs, T rhs) { return lhs > rhs ? (lhs = rhs, true) : false; } template <class T> bool chmax(T& lhs, T rhs) { return lhs < rhs ? (lhs = rhs, true) : false; } struct IOIO { IOIO() { cin.tie(0)->sync_with_stdio(0); } } ioio; template <class S, class T> ostream& operator<<(ostream& os, const pair<S, T>& p) { os << '(' << p.first << ", " << p.second << ')'; return os; } template <class T> ostream& operator<<(ostream& os, const vector<T>& vs) { os << '{'; rep(i, 0, (int)vs.size()) os << vs[i] << (i + 1 == (int)vs.size() ? "" : ", "); os << '}'; return os; } template <class T> ostream& operator<<(ostream& os, const set<T>& vs) { os << '{'; for (auto it = vs.begin(); it != vs.end(); it++) { if (it != vs.begin()) { os << ", "; } os << *it; } os << '}'; return os; } template <class T, class U> ostream& operator<<(ostream& os, const map<T, U>& vs) { os << '{'; for (auto it = vs.begin(); it != vs.end(); it++) { if (it != vs.begin()) { os << ", "; } os << *it; } os << '}'; return os; } #ifdef DEBUG void dump_func() { cerr << endl; } template <class Head, class... Tail> void dump_func(Head&& head, Tail&&... tail) { cerr << head; if (sizeof...(Tail) > 0) { cerr << ", "; } dump_func(std::move(tail)...); } #define dump(...) cerr << "[" + string(#__VA_ARGS__) + "] ", dump_func(__VA_ARGS__) #else #define dump(...) static_cast<int>(0) #endif void solve() { ll d, x, y; cin >> d >> x >> y; if (y == 0) { cout << x * d << '\n'; return; } ll ans = 0; auto F = [&](ll a) { return -((x * (a - x)) / y) + y; }; auto area = [&](ll x1, ll y1, ll x2, ll y2) { return abs((x1 * y2) - (x2 * y1)); }; auto in = [&](ll v) { return 0 <= v && v <= d; }; { ll g = y / gcd(y, x); ll ok = 0; ll ng = (d + g) / g; while (ng - ok > 1) { ll key = (ok + ng) / 2; if (in(g * key + x) && in(F(g * key + x))) ok = key; else ng = key; } chmax(ans, area(x, y, g * ok + x, F(g * ok + x))); } { ll g = y / gcd(y, x); ll ok = 0; ll ng = -((x + g) / g); while (ok - ng > 1) { ll key = (ok + ng) / 2; if (in(g * key + x) && in(F(g * key + x))) ok = key; else ng = key; } chmax(ans, area(x, y, g * ok + x, F(g * ok + x))); } cout << ans << '\n'; } int main() { int t; cin >> t; while (t--) solve(); }