結果

問題 No.1765 While Shining
ユーザー shojin_proshojin_pro
提出日時 2022-01-22 00:39:41
言語 Java21
(openjdk 21)
結果
AC  
実行時間 222 ms / 2,000 ms
コード長 3,845 bytes
コンパイル時間 3,234 ms
コンパイル使用メモリ 79,724 KB
実行使用メモリ 49,896 KB
最終ジャッジ日時 2024-05-04 18:37:57
合計ジャッジ時間 8,616 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
このコードへのチャレンジ
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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 46 ms
36,944 KB
testcase_01 AC 45 ms
37,016 KB
testcase_02 AC 45 ms
36,948 KB
testcase_03 AC 45 ms
36,796 KB
testcase_04 AC 48 ms
37,092 KB
testcase_05 AC 47 ms
37,108 KB
testcase_06 AC 54 ms
37,296 KB
testcase_07 AC 45 ms
36,860 KB
testcase_08 AC 48 ms
37,384 KB
testcase_09 AC 191 ms
45,012 KB
testcase_10 AC 207 ms
44,868 KB
testcase_11 AC 185 ms
44,836 KB
testcase_12 AC 190 ms
44,860 KB
testcase_13 AC 193 ms
44,812 KB
testcase_14 AC 220 ms
45,136 KB
testcase_15 AC 208 ms
44,960 KB
testcase_16 AC 209 ms
45,096 KB
testcase_17 AC 202 ms
45,028 KB
testcase_18 AC 215 ms
44,728 KB
testcase_19 AC 207 ms
44,820 KB
testcase_20 AC 209 ms
45,576 KB
testcase_21 AC 207 ms
45,028 KB
testcase_22 AC 213 ms
45,208 KB
testcase_23 AC 217 ms
45,060 KB
testcase_24 AC 222 ms
49,896 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 #

import java.util.*;
import java.io.*;

public class Main {
    static FastScanner sc = new FastScanner(System.in);
    static PrintWriter pw = new PrintWriter(System.out);
    static StringBuilder sb = new StringBuilder();
    static long mod = (long) 1e9 + 7;

    public static void main(String[] args) throws Exception {
        solve();
        pw.flush();
    }

    public static void solve() {
        int n = sc.nextInt();
        long ans = 0;
        Deque<Integer> dq = new ArrayDeque<Integer>();
        for(int i = 0; i < n-1; i++){
            if(dq.size() % 2 == 0){
                if(sc.nextInt() == 1){
                    dq.add(i);
                }else{
                    dq.clear();
                }
            }else{
                if(sc.nextInt() == 0){
                    dq.add(i);
                }else{
                    dq.clear();
                    dq.add(i);
                }
            }
            ans += (dq.size()+1)/2;
            //pw.println(dq);
        }
        pw.println(ans);
    }

    static class GeekInteger {
        public static void save_sort(int[] array) {
            shuffle(array);
            Arrays.sort(array);
        }

        public static int[] shuffle(int[] array) {
            int n = array.length;
            Random random = new Random();
            for (int i = 0, j; i < n; i++) {
                j = i + random.nextInt(n - i);
                int randomElement = array[j];
                array[j] = array[i];
                array[i] = randomElement;
            }
            return array;
        }

        public static void save_sort(long[] array) {
            shuffle(array);
            Arrays.sort(array);
        }

        public static long[] shuffle(long[] array) {
            int n = array.length;
            Random random = new Random();
            for (int i = 0, j; i < n; i++) {
                j = i + random.nextInt(n - i);
                long randomElement = array[j];
                array[j] = array[i];
                array[i] = randomElement;
            }
            return array;
        }

    }
}

class FastScanner {
    private BufferedReader reader = null;
    private StringTokenizer tokenizer = null;

    public FastScanner(InputStream in) {
        reader = new BufferedReader(new InputStreamReader(in));
        tokenizer = null;
    }

    public FastScanner(FileReader in) {
        reader = new BufferedReader(in);
        tokenizer = null;
    }

    public String next() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                tokenizer = new StringTokenizer(reader.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return tokenizer.nextToken();
    }

    public String nextLine() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                return reader.readLine();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return tokenizer.nextToken("\n");
    }

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

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

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

    public String[] nextArray(int n) {
        String[] a = new String[n];
        for (int i = 0; i < n; i++)
            a[i] = next();
        return a;
    }

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

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