結果
問題 | No.13 囲みたい! |
ユーザー | te-sh |
提出日時 | 2020-01-21 11:28:06 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 8 ms / 5,000 ms |
コード長 | 4,835 bytes |
コンパイル時間 | 1,471 ms |
コンパイル使用メモリ | 156,456 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-22 04:23:22 |
合計ジャッジ時間 | 2,087 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 1 ms
6,812 KB |
testcase_01 | AC | 1 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,944 KB |
testcase_03 | AC | 5 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 7 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 7 ms
6,940 KB |
testcase_08 | AC | 8 ms
6,940 KB |
testcase_09 | AC | 7 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 6 ms
6,940 KB |
testcase_12 | AC | 1 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 |
ソースコード
// URL: https://yukicoder.me/problems/no/13 import std.algorithm, std.array, std.container, std.math, std.range, std.typecons, std.string; version(unittest) {} else void main() { int W, H; io.getV(W, H); int[][] M; io.getM(H, W, M); auto g = grid(M), v = Grid!bool(W, H); alias P = g.P; auto hasCycle(P p) { struct P2 { P curr, prev; } auto q = DList!P2(P2(p, p)); v[p] = true; while (!q.empty) { auto e = q.front; q.removeFront(); foreach (d; g.around4(e.curr).filter!(d => d != e.prev && g[d] == g[p])) { if (v[d]) return true; q.insertBack(P2(d, e.curr)); v[d] = true; } } return false; } foreach (y; 0..H) foreach (x; 0..W) if (!v[x, y] && hasCycle(P(x, y))) { io.put("possible"); return; } io.put("impossible"); } struct Point2(T) { alias P = Point2!T, Op = string; T x, y; pure P opBinary(Op o)(P r) if (o=="+"||o=="-") {return mixin("P(x"~o~"r.x,y"~o~"r.y)");} pure P opBinary(Op o)(T a) if (o=="*"||o=="/") {return mixin("P(x"~o~"a,y"~o~"a)");} P opOpAssign(Op o)(P r) if (o=="+"||o=="-") {mixin("x"~o~"=r.x;y"~o~"=r.y;");return this;} P opOpAssign(Op o)(T a) if (o=="*"||o=="/") {mixin("x"~o~"=a;y"~o~"=a;");return this;} pure T opBinary(Op o: "*")(P r) {return x*r.x+y*r.y;} pure T hypot2() {return x^^2+y^^2;} } pure T cross(T)(Point2!T p1, Point2!T p2) { return p1.x*p2.y - p1.y*p2.x; } struct Point3(T) { alias P = Point3!T, Op = string; T x, y, z; pure P opBinary(Op o)(P r) if (o=="+"||o=="-") {return mixin("P(x"~o~"r.x,y"~o~"r.y,z"~o~"r.z)");} pure P opBinary(Op o)(T a) if (o=="*"||o=="/") {return mixin("P(x"~o~"a,y"~o~"a,z"~o~"a)");} P opOpAssign(Op o)(P r) if (o=="+"||o=="-") {mixin("x"~o~"=r.x;y"~o~"=r.y;z"~o~"=r.z;");return this;} P opOpAssign(Op o)(T a) if (o=="*"||o=="/") {mixin("x"~o~"=a;y"~o~"=a;z"~o~"=a;");return this;} pure T opBinary(Op o: "*")(P r) {return x*r.x+y*r.y+z*r.z;} pure T hypot2() {return x^^2+y^^2+z^^2;} } pure Point3!T cross(T)(Point3!T p1, Point3!T p2) { return Point3!T(p1.y*p2.z - p1.z*p2.y, p1.z*p2.x - p1.x*p2.z, p1.x*p2.y - p1.y*p2.x); } struct Grid(T) { alias G = Grid!T, P = Point2!int; size_t c, r; T[][] data; this(size_t c, size_t r) { this.c = c; this.r = r; data = new T[][](r, c); } this(T[][] data) { c = data[0].length; r = data.length; this.data = data; } pure T opIndex(size_t x, size_t y) { return data[y][x]; } pure T opIndex(P p) { return data[p.y][p.x]; } G opIndexAssign(T v, size_t x, size_t y) { data[y][x] = v; return this; } G opIndexAssign(T v, P p) { data[p.y][p.x] = v; return this; } G opIndexOpAssign(string op)(T v, size_t x, size_t y) { mixin("data[y][x]"~op~"=v;"); return this; } G opIndexOpAssign(string op)(T v, P p) { mixin("data[p.y][p.x]"~op~"=v;"); return this; } pure bool valid(size_t x, size_t y) { return 0 <= x && x < c && 0 <= y && y < r; } pure bool valid(P p) { return valid(p.x, p.y); } auto d4 = [P(-1, 0), P(0, -1), P(1, 0), P(0, 1)]; pure auto around4(P p) { return d4.map!(d => d+p).filter!(np => valid(np)); } auto d8 = [P(-1, 0), P(-1, -1), P(0, -1), P(1, -1), P(1, 0), P(1, 1), P(0, 1), P(-1, 1)]; pure auto around8(P p) { return d8.map!(d => d+p).filter!(np => valid(np)); } } Grid!T grid(T)(T[][] data) { return Grid!T(data); } auto io = IO!()(); import std.stdio; struct IO(alias IN = stdin, alias OUT = stdout, string delimiter = " ", string floatFormat = "%.10f") { import std.conv, std.format, std.meta, std.traits; alias assignable = hasAssignableElements; 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 getV(T...)(ref T v) { foreach (ref w; v) get(w); } auto getA(T)(size_t n, ref T v) if (assignable!T) { v = new T(n); foreach (ref w; v) get(w); } auto getC(T...)(size_t n, ref T v) if (allSatisfy!(assignable, 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 (assignable!T && assignable!(ElementType!T)) { v = new T(r); foreach (ref w; v) getA(c, w); } 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); } 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; } }