#750445 (Java21) No.3090 Knapsack Function

• 問題: No.3090 Knapsack Function
• ユーザー: Yu_212
• 提出日時: 2022-04-01 21:39:12
• 言語: Java21 (openjdk 21)
• 結果: WA
• 実行時間: -
• コード長: 7,052 bytes
• コンパイル時間: 3,577 ms
• コンパイル使用メモリ: 93,636 KB
• 実行使用メモリ: 63,048 KB
• 最終ジャッジ日時: 2024-11-20 08:36:58
• 合計ジャッジ時間: 8,592 ms
• ジャッジサーバーID （参考情報）: judge3 / judge4

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	89 ms; 38,324 KB
testcase_01	WA	-
testcase_02	WA	-
testcase_03	WA	-
testcase_04	AC	88 ms; 38,496 KB
testcase_05	AC	87 ms; 38,676 KB
testcase_06	WA	-
testcase_07	AC	90 ms; 38,316 KB
testcase_08	AC	91 ms; 38,388 KB
testcase_09	WA	-
testcase_10	AC	94 ms; 38,672 KB
testcase_11	AC	93 ms; 38,452 KB
testcase_12	AC	92 ms; 38,336 KB
testcase_13	AC	94 ms; 38,520 KB
testcase_14	AC	92 ms; 38,592 KB
testcase_15	WA	-
testcase_16	WA	-
testcase_17	AC	660 ms; 62,388 KB
testcase_18	WA	-
testcase_19	WA	-
testcase_20	WA	-

ソースコード

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.*;
import java.util.function.IntUnaryOperator;
import java.util.function.LongUnaryOperator;
import java.util.stream.Collectors;

public class Main {
    static In in = new In();
    static Out out = new Out();
    static final long inf = 0x1fffffffffffffffL;
    static final int iinf = 0x3fffffff;
    static final double eps = 1e-9;
    static long mod = 1000000007;

    void solve() {
        int n = in.nextInt();
        List<LongPair> list = new ArrayList<>();
        Map<Long, Long> map = new HashMap<>();
        for (int i = 0; i < n; i++) {
            list.add(new LongPair(in.nextLong(), in.nextLong()));
            map.merge(list.get(i).first, list.get(i).second, Math::max);
        }
        list.sort(Comparator.<LongPair>comparingLong(p -> p.first).thenComparingLong(p -> -p.second));
        long fv = list.get(0).first;
        long lw = list.get(0).second;
        for (long i = fv + 1; i < fv * 2; i++) {
            Long w = map.getOrDefault(i, -1L);
            if (w == -1 || lw >= w) {
                out.println("No");
                return;
            }
            lw = w;
        }
        for (LongPair pair : list) {
            if (pair.second * fv > pair.first * list.get(0).second) {
                out.println("No");
                return;
            }
        }
        out.println("Yes");
    }

    public static void main(String... args) {
        new Main().solve();
        out.flush();
    }
}

class LongPair implements Comparable<LongPair> {
    long first;
    long second;

    LongPair(long first, long second) {
        this.first = first;
        this.second = second;
    }

    @Override
    public boolean equals(Object o) {
        if (!(o instanceof LongPair)) {
            return false;
        }
        LongPair that = (LongPair)o;
        return first == that.first && second == that.second;
    }

    @Override
    public int hashCode() {
        return Long.hashCode(first) * 31 + Long.hashCode(second);
    }

    @Override
    public int compareTo(LongPair o) {
        return first == o.first ? Long.compare(second, o.second) : Long.compare(first, o.first);
    }

    @Override
    public String toString() {
        return String.format("[%d, %d]", first, second);
    }
}

class In {
    private final BufferedReader reader = new BufferedReader(new InputStreamReader(System.in), 0x10000);
    private StringTokenizer tokenizer;

    String next() {
        try {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                tokenizer = new StringTokenizer(reader.readLine());
            }
        } catch (IOException ignored) {
        }
        return tokenizer.nextToken();
    }

    int nextInt() {
        return Integer.parseInt(next());
    }

    long nextLong() {
        return Long.parseLong(next());
    }

    double nextDouble() {
        return Double.parseDouble(next());
    }

    char[] nextCharArray() {
        return next().toCharArray();
    }

    String[] nextStringArray(int n) {
        String[] s = new String[n];
        for (int i = 0; i < n; i++) {
            s[i] = next();
        }
        return s;
    }

    char[][] nextCharGrid(int n, int m) {
        char[][] a = new char[n][m];
        for (int i = 0; i < n; i++) {
            a[i] = next().toCharArray();
        }
        return a;
    }

    int[] nextIntArray(int n) {
        int[] a = new int[n];
        for (int i = 0; i < n; i++) {
            a[i] = nextInt();
        }
        return a;
    }

    int[] nextIntArray(int n, IntUnaryOperator op) {
        int[] a = new int[n];
        for (int i = 0; i < n; i++) {
            a[i] = op.applyAsInt(nextInt());
        }
        return a;
    }

    int[][] nextIntMatrix(int h, int w) {
        int[][] a = new int[h][w];
        for (int i = 0; i < h; i++) {
            a[i] = nextIntArray(w);
        }
        return a;
    }

    long[] nextLongArray(int n) {
        long[] a = new long[n];
        for (int i = 0; i < n; i++) {
            a[i] = nextLong();
        }
        return a;
    }

    long[] nextLongArray(int n, LongUnaryOperator op) {
        long[] a = new long[n];
        for (int i = 0; i < n; i++) {
            a[i] = op.applyAsLong(nextLong());
        }
        return a;
    }

    long[][] nextLongMatrix(int h, int w) {
        long[][] a = new long[h][w];
        for (int i = 0; i < h; i++) {
            a[i] = nextLongArray(w);
        }
        return a;
    }

    List<List<Integer>> nextEdges(int n, int m, boolean directed) {
        List<List<Integer>> res = new ArrayList<>();
        for (int i = 0; i < n; i++) {
            res.add(new ArrayList<>());
        }
        for (int i = 0; i < m; i++) {
            int u = nextInt() - 1;
            int v = nextInt() - 1;
            res.get(u).add(v);
            if (!directed) {
                res.get(v).add(u);
            }
        }
        return res;
    }
}

class Out {
    private final PrintWriter out = new PrintWriter(System.out);
    boolean autoFlush = false;

    void println(Object... args) {
        if (args == null || args.getClass() != Object[].class) {
            args = new Object[] {args};
        }
        out.println(Arrays.stream(args).map(obj -> {
            Class<?> clazz = obj == null ? null : obj.getClass();
            return clazz == Double.class ? String.format("%.10f", obj) :
                   clazz == byte[].class ? Arrays.toString((byte[])obj) :
                   clazz == short[].class ? Arrays.toString((short[])obj) :
                   clazz == int[].class ? Arrays.toString((int[])obj) :
                   clazz == long[].class ? Arrays.toString((long[])obj) :
                   clazz == char[].class ? Arrays.toString((char[])obj) :
                   clazz == float[].class ? Arrays.toString((float[])obj) :
                   clazz == double[].class ? Arrays.toString((double[])obj) :
                   clazz == boolean[].class ? Arrays.toString((boolean[])obj) :
                   obj instanceof Object[] ? Arrays.deepToString((Object[])obj) :
                   String.valueOf(obj);
        }).collect(Collectors.joining(" ")));
        if (autoFlush) {
            out.flush();
        }
    }

    void println(char[] s) {
        out.println(String.valueOf(s));
        if (autoFlush) {
            out.flush();
        }
    }

    void println(int[] a) {
        StringJoiner joiner = new StringJoiner(" ");
        for (int i : a) {
            joiner.add(Integer.toString(i));
        }
        out.println(joiner);
        if (autoFlush) {
            out.flush();
        }
    }

    void println(long[] a) {
        StringJoiner joiner = new StringJoiner(" ");
        for (long i : a) {
            joiner.add(Long.toString(i));
        }
        out.println(joiner);
        if (autoFlush) {
            out.flush();
        }
    }

    void flush() {
        out.flush();
    }
}