結果

問題 No.1744 Selfish Spies 1 (à la Princess' Perfectionism)
ユーザー uwiuwi
提出日時 2021-11-15 23:50:15
言語 Java
(openjdk 23)
結果
AC  
実行時間 4,811 ms / 5,000 ms
コード長 14,079 bytes
コンパイル時間 5,565 ms
コンパイル使用メモリ 93,408 KB
実行使用メモリ 59,164 KB
最終ジャッジ日時 2024-12-15 08:35:37
合計ジャッジ時間 40,443 ms
ジャッジサーバーID
(参考情報)
judge3 / judge5
このコードへのチャレンジ
(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 69 ms
51,240 KB
testcase_01 AC 74 ms
51,236 KB
testcase_02 AC 82 ms
51,148 KB
testcase_03 AC 75 ms
51,252 KB
testcase_04 AC 84 ms
51,156 KB
testcase_05 AC 77 ms
51,016 KB
testcase_06 AC 73 ms
51,228 KB
testcase_07 AC 81 ms
51,092 KB
testcase_08 AC 71 ms
51,136 KB
testcase_09 AC 77 ms
51,228 KB
testcase_10 AC 81 ms
51,280 KB
testcase_11 AC 86 ms
51,000 KB
testcase_12 AC 136 ms
53,060 KB
testcase_13 AC 93 ms
51,356 KB
testcase_14 AC 171 ms
57,128 KB
testcase_15 AC 162 ms
56,188 KB
testcase_16 AC 187 ms
57,084 KB
testcase_17 AC 365 ms
57,668 KB
testcase_18 AC 313 ms
58,004 KB
testcase_19 AC 87 ms
51,180 KB
testcase_20 AC 89 ms
51,040 KB
testcase_21 AC 155 ms
52,344 KB
testcase_22 AC 129 ms
52,236 KB
testcase_23 AC 97 ms
51,268 KB
testcase_24 AC 550 ms
58,044 KB
testcase_25 AC 156 ms
56,216 KB
testcase_26 AC 203 ms
56,808 KB
testcase_27 AC 536 ms
57,660 KB
testcase_28 AC 3,399 ms
58,552 KB
testcase_29 AC 520 ms
57,616 KB
testcase_30 AC 495 ms
57,776 KB
testcase_31 AC 561 ms
57,592 KB
testcase_32 AC 517 ms
57,740 KB
testcase_33 AC 2,496 ms
58,440 KB
testcase_34 AC 2,089 ms
58,976 KB
testcase_35 AC 4,666 ms
58,756 KB
testcase_36 AC 4,774 ms
59,164 KB
testcase_37 AC 4,811 ms
58,876 KB
testcase_38 AC 3,332 ms
58,508 KB
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

package contest211114;
import java.io.*;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.InputMismatchException;
import java.util.Queue;
import java.util.function.IntUnaryOperator;
import java.util.function.LongUnaryOperator;
public class A {
InputStream is;
FastWriter out;
String INPUT = "";
public void solve()
{
// N,M L biparatite graph
//
//
int n = ni(), m = ni(), L = ni();
int[] from = new int[L];
int[] to = new int[L];
for(int i = 0;i < L;i++){
from[i] = ni()-1;
to[i] = ni()-1;
}
int[][] g = packD(n, from, to);
int[] mat = doBipartiteMatchingHK(g, m);
int nmat = 0;
for(int v : mat)if(v != -1)nmat++;
int[] ngs = new int[n];
Arrays.fill(ngs, -1);
for(int i = 0;i < n;i++){
if(mat[i] == -1)continue;
for(int j = 0;j < g[i].length;j++){
if(g[i][j] == mat[i]){
g[i][j] = -1;
}
}
int[] hey = doBipartiteMatchingHK(g, m);
int lnmat = 0;
for(int v : hey)if(v != -1)lnmat++;
if(nmat > lnmat){
ngs[i] = mat[i];
}
for(int j = 0;j < g[i].length;j++){
if(g[i][j] == -1){
g[i][j] = mat[i];
}
}
}
for(int i = 0;i < L;i++){
if(ngs[from[i]] == to[i]){
out.println("No");
}else{
out.println("Yes");
}
}
}
public static int[] doBipartiteMatchingHK(int[][] g, int m)
{
int n = g.length;
if(n == 0)return new int[0];
int[] from = new int[m];
int[] to = new int[n];
Arrays.fill(to, -1);
Arrays.fill(from, n);
int[] d = new int[n+1];
int mat = 0;
while(true){
Arrays.fill(d, -1);
int[] q = new int[n];
int r = 0;
for(int i = 0;i < n;i++){
if(to[i] == -1){
d[i] = 0;
q[r++] = i;
}
}
for(int p = 0;p < r;p++) {
int cur = q[p];
for(int adj : g[cur]){
if(adj == -1)continue;
int nex = from[adj];
if(d[nex] == -1) {
if(nex != n)q[r++] = nex;
d[nex] = d[cur] + 1;
}
}
}
if(d[n] == -1)break;
for(int i = 0;i < n;i++){
if(to[i] == -1){
if(dfsHK(d, g, n, m, to, from, i))mat++;
}
}
}
return to;
}
static boolean dfsHK(int[] d, int[][] g, int n, int m, int[] to, int[] from, int cur)
{
if(cur == n)return true;
for(int adj : g[cur]){
if(adj == -1)continue;
int nex = from[adj];
if(d[nex] == d[cur] + 1 && dfsHK(d, g, n, m, to, from, nex)){
to[cur] = adj;
from[adj] = cur;
return true;
}
}
d[cur] = -1;
return false;
}
public static int[][] packD(int n, int[] from, int[] to) {
return packD(n, from, to, from.length);
}
public static int[][] packD(int n, int[] from, int[] to, int sup) {
int[][] g = new int[n][];
int[] p = new int[n];
for (int i = 0; i < sup; i++) p[from[i]]++;
for (int i = 0; i < n; i++) g[i] = new int[p[i]];
for (int i = 0; i < sup; i++) {
g[from[i]][--p[from[i]]] = to[i];
}
return g;
}
public static void main(String[] args) {
new A().run();
}
public void run()
{
long S = System.currentTimeMillis();
is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
out = new FastWriter(System.out);
solve();
out.flush();
long G = System.currentTimeMillis();
tr(G-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();
}
private boolean eof()
{
if(lenbuf == -1)return true;
int lptr = ptrbuf;
while(lptr < lenbuf)if(!isSpaceChar(inbuf[lptr++]))return false;
try {
is.mark(1000);
while(true){
int b = is.read();
if(b == -1){
is.reset();
return true;
}else if(!isSpaceChar(b)){
is.reset();
return false;
}
}
} catch (IOException e) {
return true;
}
}
private final 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 boolean isSpaceChar(int c) { return !(c >= 32 && 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))){
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 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[] 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 int ni()
{
int num = 0, 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 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();
}
}
public static class FastWriter
{
private static final int BUF_SIZE = 1<<13;
private final byte[] buf = new byte[BUF_SIZE];
private final OutputStream out;
private int ptr = 0;
private FastWriter(){out = null;}
public FastWriter(OutputStream os)
{
this.out = os;
}
public FastWriter(String path)
{
try {
this.out = new FileOutputStream(path);
} catch (FileNotFoundException e) {
throw new RuntimeException("FastWriter");
}
}
public FastWriter write(byte b)
{
buf[ptr++] = b;
if(ptr == BUF_SIZE)innerflush();
return this;
}
public FastWriter write(char c)
{
return write((byte)c);
}
public FastWriter write(char[] s)
{
for(char c : s){
buf[ptr++] = (byte)c;
if(ptr == BUF_SIZE)innerflush();
}
return this;
}
public FastWriter write(String s)
{
s.chars().forEach(c -> {
buf[ptr++] = (byte)c;
if(ptr == BUF_SIZE)innerflush();
});
return this;
}
private static int countDigits(int l) {
if (l >= 1000000000) return 10;
if (l >= 100000000) return 9;
if (l >= 10000000) return 8;
if (l >= 1000000) return 7;
if (l >= 100000) return 6;
if (l >= 10000) return 5;
if (l >= 1000) return 4;
if (l >= 100) return 3;
if (l >= 10) return 2;
return 1;
}
public FastWriter write(int x)
{
if(x == Integer.MIN_VALUE){
return write((long)x);
}
if(ptr + 12 >= BUF_SIZE)innerflush();
if(x < 0){
write((byte)'-');
x = -x;
}
int d = countDigits(x);
for(int i = ptr + d - 1;i >= ptr;i--){
buf[i] = (byte)('0'+x%10);
x /= 10;
}
ptr += d;
return this;
}
private static int countDigits(long l) {
if (l >= 1000000000000000000L) return 19;
if (l >= 100000000000000000L) return 18;
if (l >= 10000000000000000L) return 17;
if (l >= 1000000000000000L) return 16;
if (l >= 100000000000000L) return 15;
if (l >= 10000000000000L) return 14;
if (l >= 1000000000000L) return 13;
if (l >= 100000000000L) return 12;
if (l >= 10000000000L) return 11;
if (l >= 1000000000L) return 10;
if (l >= 100000000L) return 9;
if (l >= 10000000L) return 8;
if (l >= 1000000L) return 7;
if (l >= 100000L) return 6;
if (l >= 10000L) return 5;
if (l >= 1000L) return 4;
if (l >= 100L) return 3;
if (l >= 10L) return 2;
return 1;
}
public FastWriter write(long x)
{
if(x == Long.MIN_VALUE){
return write("" + x);
}
if(ptr + 21 >= BUF_SIZE)innerflush();
if(x < 0){
write((byte)'-');
x = -x;
}
int d = countDigits(x);
for(int i = ptr + d - 1;i >= ptr;i--){
buf[i] = (byte)('0'+x%10);
x /= 10;
}
ptr += d;
return this;
}
public FastWriter write(double x, int precision)
{
if(x < 0){
write('-');
x = -x;
}
x += Math.pow(10, -precision)/2;
// if(x < 0){ x = 0; }
write((long)x).write(".");
x -= (long)x;
for(int i = 0;i < precision;i++){
x *= 10;
write((char)('0'+(int)x));
x -= (int)x;
}
return this;
}
public FastWriter writeln(char c){ return write(c).writeln(); }
public FastWriter writeln(int x){ return write(x).writeln(); }
public FastWriter writeln(long x){ return write(x).writeln(); }
public FastWriter writeln(double x, int precision){ return write(x, precision).writeln(); }
public FastWriter write(int... xs)
{
boolean first = true;
for(int x : xs) {
if (!first) write(' ');
first = false;
write(x);
}
return this;
}
public FastWriter write(long... xs)
{
boolean first = true;
for(long x : xs) {
if (!first) write(' ');
first = false;
write(x);
}
return this;
}
public FastWriter write(IntUnaryOperator f, int... xs)
{
boolean first = true;
for(int x : xs) {
if (!first) write(' ');
first = false;
write(f.applyAsInt(x));
}
return this;
}
public FastWriter write(LongUnaryOperator f, long... xs)
{
boolean first = true;
for(long x : xs) {
if (!first) write(' ');
first = false;
write(f.applyAsLong(x));
}
return this;
}
public FastWriter writeln()
{
return write((byte)'\n');
}
public FastWriter writeln(int... xs) { return write(xs).writeln(); }
public FastWriter writeln(long... xs) { return write(xs).writeln(); }
public FastWriter writeln(IntUnaryOperator f, int... xs) { return write(f, xs).writeln(); }
public FastWriter writeln(LongUnaryOperator f, long... xs) { return write(f, xs).writeln(); }
public FastWriter writeln(char[] line) { return write(line).writeln(); }
public FastWriter writeln(char[]... map) { for(char[] line : map)write(line).writeln();return this; }
public FastWriter writeln(String s) { return write(s).writeln(); }
private void innerflush()
{
try {
out.write(buf, 0, ptr);
ptr = 0;
} catch (IOException e) {
throw new RuntimeException("innerflush");
}
}
public void flush()
{
innerflush();
try {
out.flush();
} catch (IOException e) {
throw new RuntimeException("flush");
}
}
public FastWriter print(byte b) { return write(b); }
public FastWriter print(char c) { return write(c); }
public FastWriter print(char[] s) { return write(s); }
public FastWriter print(String s) { return write(s); }
public FastWriter print(int x) { return write(x); }
public FastWriter print(long x) { return write(x); }
public FastWriter print(double x, int precision) { return write(x, precision); }
public FastWriter println(char c){ return writeln(c); }
public FastWriter println(int x){ return writeln(x); }
public FastWriter println(long x){ return writeln(x); }
public FastWriter println(double x, int precision){ return writeln(x, precision); }
public FastWriter print(int... xs) { return write(xs); }
public FastWriter print(long... xs) { return write(xs); }
public FastWriter print(IntUnaryOperator f, int... xs) { return write(f, xs); }
public FastWriter print(LongUnaryOperator f, long... xs) { return write(f, xs); }
public FastWriter println(int... xs) { return writeln(xs); }
public FastWriter println(long... xs) { return writeln(xs); }
public FastWriter println(IntUnaryOperator f, int... xs) { return writeln(f, xs); }
public FastWriter println(LongUnaryOperator f, long... xs) { return writeln(f, xs); }
public FastWriter println(char[] line) { return writeln(line); }
public FastWriter println(char[]... map) { return writeln(map); }
public FastWriter println(String s) { return writeln(s); }
public FastWriter println() { return writeln(); }
}
public static void trnz(int... o)
{
for(int i = 0;i < o.length;i++)if(o[i] != 0)System.out.print(i+":"+o[i]+" ");
System.out.println();
}
// print ids which are 1
public static void trt(long... o)
{
Queue<Integer> stands = new ArrayDeque<>();
for(int i = 0;i < o.length;i++){
for(long x = o[i];x != 0;x &= x-1)stands.add(i<<6|Long.numberOfTrailingZeros(x));
}
System.out.println(stands);
}
public static void tf(boolean... r)
{
for(boolean x : r)System.out.print(x?'#':'.');
System.out.println();
}
public static void tf(boolean[]... b)
{
for(boolean[] r : b) {
for(boolean x : r)System.out.print(x?'#':'.');
System.out.println();
}
System.out.println();
}
public void tf(long[]... b)
{
if(INPUT.length() != 0) {
for (long[] r : b) {
for (long x : r) {
for (int i = 0; i < 64; i++) {
System.out.print(x << ~i < 0 ? '#' : '.');
}
}
System.out.println();
}
System.out.println();
}
}
public void tf(long... b)
{
if(INPUT.length() != 0) {
for (long x : b) {
for (int i = 0; i < 64; i++) {
System.out.print(x << ~i < 0 ? '#' : '.');
}
}
System.out.println();
}
}
private void tr(Object... o) { if(INPUT.length() != 0)System.out.println(Arrays.deepToString(o)); }
}
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