結果
問題 | No.724 円と円の間の円 |
ユーザー | te-sh |
提出日時 | 2020-01-28 14:29:16 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 5 ms / 2,000 ms |
コード長 | 3,254 bytes |
コンパイル時間 | 3,276 ms |
コンパイル使用メモリ | 172,380 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-22 04:42:13 |
合計ジャッジ時間 | 4,184 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
(要ログイン)
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 | 4 ms
6,812 KB |
testcase_01 | AC | 3 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 3 ms
6,940 KB |
testcase_05 | AC | 3 ms
6,944 KB |
testcase_06 | AC | 3 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 3 ms
6,940 KB |
testcase_09 | AC | 3 ms
6,944 KB |
testcase_10 | AC | 3 ms
6,944 KB |
testcase_11 | AC | 3 ms
6,940 KB |
testcase_12 | AC | 3 ms
6,940 KB |
testcase_13 | AC | 3 ms
6,940 KB |
testcase_14 | AC | 3 ms
6,940 KB |
testcase_15 | AC | 1 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 3 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 2 ms
6,940 KB |
testcase_20 | AC | 1 ms
6,940 KB |
testcase_21 | AC | 1 ms
6,940 KB |
testcase_22 | AC | 3 ms
6,940 KB |
testcase_23 | AC | 5 ms
6,940 KB |
ソースコード
// URL: https://yukicoder.me/problems/no/724 import std.algorithm, std.array, std.container, std.math, std.range, std.typecons, std.string; version(unittest) {} else void main() { int n; double a, b; io.getV(n, a, b); auto c = (a+b)/2, d = (a*b).sqrt, eps = 1.0e-12L; struct Cir { real x, y, r; this(double x) { this.x = x; y = (d^^2 * (1 - (x-c)^^2/c^^2)).sqrt; r = ((x-a)^^2 + y^^2).sqrt - a; } } Cir e; if (n%2 == 1) { e = Cir(a+b); n = (n-1)/2; } else { auto calc1(double x) { auto e = Cir(x); return e.r - e.y; } auto x = iota(0.0, a+b, eps).lowerBoundBy!(x => calc1(x))(0).back; e = Cir(x); n = n/2-1; } auto calc(Cir e, double x2) { auto e2 = Cir(x2); return (e2.r+e.r) - ((e2.x-e.x)^^2+(e2.y-e.y)^^2).sqrt; } foreach (_; 0..n) { auto x2 = iota(0.0, e.x, eps).lowerBoundBy!(x2 => calc(e, x2))(0).back; e = Cir(x2); } io.put(e.r); } auto lowerBoundBy(alias conv = "a", alias comp = "a<b", R, T)(R a, T v) { return a.searchBy!(conv, comp).lowerBound(tuple(a.front, v)).map!"a[0]"; } auto upperBoundBy(alias conv = "a", alias comp = "a<b", R, T)(R a, T v) { return a.searchBy!(conv, comp).upperBound(tuple(a.front, v)).map!"a[0]"; } auto searchBy(alias conv = "a", alias comp = "a<b", R)(R a) { import std.functional; alias convFun = unaryFun!conv, compFun = binaryFun!comp; return a.map!(e => tuple(e, convFun(e))).assumeSorted!((a, b) => compFun(a[1], b[1])); } auto io = IO!()(); import std.stdio; struct IO(string floatFormat = "%.10f", string delimiter = " ", alias IN = stdin, alias OUT = stdout) { import std.conv, std.format, std.meta, std.traits; auto getV(T...)(ref T v) { foreach (ref w; v) get(w); } auto getA(T)(size_t n, ref T v) if (hasAssignableElements!T) { v = new T(n); foreach (ref w; v) get(w); } auto getC(T...)(size_t n, ref T v) if (allSatisfy!(hasAssignableElements, T)) { foreach (ref w; v) w = new typeof(w)(n); foreach (i; 0..n) foreach (ref w; v) get(w[i]); } auto getM(T)(size_t r, size_t c, ref T v) if (hasAssignableElements!T && hasAssignableElements!(ElementType!T)) { v = new T(r); foreach (ref w; v) getA(c, w); } template getS(E...) { auto getS(T)(size_t n, ref T v) { v = new T(n); foreach (ref w; v) foreach (e; E) mixin("get(w."~e~");"); } } auto put(bool flush = false, T...)(T v) { foreach (i, w; v) { putA(w); if (i < v.length-1) OUT.write(delimiter); } OUT.writeln; static if (flush) OUT.flush(); } auto putB(S, T)(bool c, S t, T f) { if (c) put(t); else put(f); } auto putRaw(T...)(T v) { OUT.write(v); OUT.writeln; } private { dchar[] buf; auto sp = (new dchar[](0)).splitter; void nextLine() { IN.readln(buf); sp = buf.splitter; } auto get(T)(ref T v) { if (sp.empty) nextLine(); v = sp.front.to!T; sp.popFront(); } auto putR(T)(T v) { auto w = v; while (!w.empty) { putA(w.front); w.popFront(); if (!w.empty) OUT.write(delimiter); } } auto putA(T)(T v) { static if (isInputRange!T && !isSomeString!T) putR(v); else if (isFloatingPoint!T) OUT.write(format(floatFormat, v)); else OUT.write(v); } } }