結果
問題 | No.1121 Social Distancing in Cinema |
ユーザー | uwi |
提出日時 | 2020-07-22 23:49:57 |
言語 | Java21 (openjdk 21) |
結果 |
TLE
|
実行時間 | - |
コード長 | 6,173 bytes |
コンパイル時間 | 5,457 ms |
コンパイル使用メモリ | 87,048 KB |
実行使用メモリ | 77,844 KB |
最終ジャッジ日時 | 2024-06-23 02:03:26 |
合計ジャッジ時間 | 18,273 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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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 | 72 ms
43,440 KB |
testcase_01 | AC | 73 ms
37,808 KB |
testcase_02 | AC | 72 ms
37,864 KB |
testcase_03 | AC | 70 ms
37,936 KB |
testcase_04 | AC | 71 ms
37,708 KB |
testcase_05 | AC | 71 ms
37,632 KB |
testcase_06 | AC | 72 ms
37,800 KB |
testcase_07 | AC | 70 ms
37,812 KB |
testcase_08 | AC | 71 ms
38,020 KB |
testcase_09 | AC | 70 ms
37,676 KB |
testcase_10 | AC | 72 ms
37,788 KB |
testcase_11 | AC | 71 ms
37,936 KB |
testcase_12 | AC | 71 ms
37,740 KB |
testcase_13 | AC | 72 ms
37,924 KB |
testcase_14 | AC | 74 ms
37,624 KB |
testcase_15 | AC | 89 ms
38,104 KB |
testcase_16 | AC | 128 ms
40,272 KB |
testcase_17 | AC | 194 ms
47,444 KB |
testcase_18 | AC | 232 ms
52,096 KB |
testcase_19 | AC | 243 ms
52,108 KB |
testcase_20 | AC | 91 ms
38,180 KB |
testcase_21 | AC | 89 ms
37,932 KB |
testcase_22 | AC | 86 ms
37,980 KB |
testcase_23 | AC | 77 ms
37,572 KB |
testcase_24 | AC | 74 ms
37,632 KB |
testcase_25 | AC | 160 ms
42,552 KB |
testcase_26 | AC | 166 ms
43,316 KB |
testcase_27 | AC | 108 ms
37,968 KB |
testcase_28 | AC | 234 ms
51,920 KB |
testcase_29 | AC | 168 ms
43,020 KB |
testcase_30 | AC | 157 ms
42,176 KB |
testcase_31 | AC | 240 ms
51,968 KB |
testcase_32 | AC | 219 ms
50,896 KB |
testcase_33 | AC | 163 ms
43,052 KB |
testcase_34 | AC | 156 ms
42,708 KB |
testcase_35 | AC | 226 ms
51,456 KB |
testcase_36 | AC | 242 ms
52,256 KB |
testcase_37 | AC | 147 ms
41,172 KB |
testcase_38 | AC | 167 ms
46,120 KB |
testcase_39 | AC | 254 ms
53,772 KB |
testcase_40 | AC | 141 ms
40,660 KB |
testcase_41 | AC | 113 ms
39,212 KB |
testcase_42 | AC | 271 ms
53,616 KB |
testcase_43 | AC | 275 ms
53,964 KB |
testcase_44 | AC | 450 ms
56,388 KB |
testcase_45 | AC | 440 ms
56,100 KB |
testcase_46 | TLE | - |
testcase_47 | -- | - |
testcase_48 | -- | - |
ソースコード
package contest200722; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.Comparator; import java.util.InputMismatchException; import java.util.Random; public class C2 { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int n = ni(); int[][] co = new int[n][]; for(int i = 0;i < n;i++){ co[i] = new int[]{ni(), ni(), i}; } for(int K = 0;K < 4;K++){ int[][] seled = go(co); if(seled.length >= (n)/90){ int p = seled.length; out.println(p); for(int i = 0;i < p;i++){ out.print(seled[i][2]+1 + " "); } out.println(); return; } for(int[] c : co){ int d = c[0]; c[0] = c[1]; c[1] = -d; } } for(int i = 0;i < n;i++){ co[i][1] = -co[i][1]; } for(int K = 0;K < 4;K++){ int[][] seled = go(co); if(seled.length >= (n)/90){ int p = seled.length; out.println(p); for(int i = 0;i < p;i++){ out.print(seled[i][2]+1 + " "); } out.println(); return; } for(int[] c : co){ int d = c[0]; c[0] = c[1]; c[1] = -d; } } Random gen = new Random(); double[][] xco = new double[n][3]; while(true){ // double[][] xco = new double[n][]; double theta = gen.nextDouble() * Math.PI * 2; double st = Math.sin(theta); double ct = Math.cos(theta); for(int i = 0;i < n;i++){ xco[i][0] = ct * co[i][0] - st * co[i][1]; xco[i][1] = st * co[i][0] + ct * co[i][1]; xco[i][2] = i; // xco[i] = new double[]{ // ct * co[i][0] - st * co[i][1], // st * co[i][0] + ct * co[i][1], // i // }; } double[][] seled = go(xco); if(seled.length >= (n+89)/90){ int p = seled.length; out.println(p); for(int i = 0;i < p;i++){ out.print((int)seled[i][2]+1 + " "); } out.println(); return; } } } int[][] go(int[][] co) { int n = co.length; int[][] seled = new int[n][]; Arrays.sort(co, new Comparator<int[]>() { public int compare(int[] a, int[] b) { if(a[0] != b[0])return a[0] - b[0]; return a[1] - b[1]; } }); int p = 0; int k = 0; outer: for(int i = 0;i < n;i++){ for(int j = k;j < p;j++){ if(seled[j][0] <= co[i][0] - 10){ k++; continue; } if(d2(co[i], seled[j]) < 100-1e-9)continue outer; } seled[p++] = co[i]; } return Arrays.copyOf(seled, p); } public static long d2(int[] a, int[] b) { return (long)(b[0]-a[0])*(b[0]-a[0])+(long)(b[1]-a[1])*(b[1]-a[1]); } double[][] go(double[][] co) { int n = co.length; double[][] seled = new double[n][]; Arrays.sort(co, new Comparator<double[]>() { public int compare(double[] a, double[] b) { return Double.compare(a[0], b[0]); } }); int p = 0; int k = 0; outer: for(int i = 0;i < n;i++){ for(int j = k;j < p;j++){ if(seled[j][0] <= co[i][0] - 10){ k++; continue; } if(d2(co[i], seled[j]) < 100-1e-9)continue outer; } seled[p++] = co[i]; } return Arrays.copyOf(seled, p); } public static double d2(double[] a, double[] p) { return ((a[0]-p[0])*(a[0]-p[0])+(a[1]-p[1])*(a[1]-p[1])); } void run() throws Exception { // int n = 500, m = 99999; // Random gen = new Random(); // StringBuilder sb = new StringBuilder(); // sb.append(n*n + " "); // for (int i = 0; i < n; i++) { // for(int j = 0;j < n;j++){ // sb.append(i + " " + j + "\n"); // } // } // INPUT = sb.toString(); is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new PrintWriter(System.out); long s = System.currentTimeMillis(); solve(); out.flush(); if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){ // @Override // public void run() { // long s = System.currentTimeMillis(); // solve(); // out.flush(); // if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // } // }; // t.start(); // t.join(); } public static void main(String[] args) throws Exception { new C2().run(); } private byte[] inbuf = new byte[1024]; public int lenbuf = 0, ptrbuf = 0; private int readByte() { if(lenbuf == -1)throw new InputMismatchException(); if(ptrbuf >= lenbuf){ ptrbuf = 0; try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); } if(lenbuf <= 0)return -1; } return inbuf[ptrbuf++]; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; } private double nd() { return Double.parseDouble(ns()); } private char nc() { return (char)skip(); } private String ns() { int b = skip(); StringBuilder sb = new StringBuilder(); while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ') sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } private char[] ns(int n) { char[] buf = new char[n]; int b = skip(), p = 0; while(p < n && !(isSpaceChar(b))){ buf[p++] = (char)b; b = readByte(); } return n == p ? buf : Arrays.copyOf(buf, p); } private int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private long[] nal(int n) { long[] a = new long[n]; for(int i = 0;i < n;i++)a[i] = nl(); return a; } private char[][] nm(int n, int m) { char[][] map = new char[n][]; for(int i = 0;i < n;i++)map[i] = ns(m); return map; } private int[][] nmi(int n, int m) { int[][] map = new int[n][]; for(int i = 0;i < n;i++)map[i] = na(m); return map; } private int ni() { return (int)nl(); } private long nl() { long num = 0; int b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); } }