結果

問題 No.1505 Zero-Product Ranges
ユーザー shojin_proshojin_pro
提出日時 2021-05-14 22:21:40
言語 Java17
(openjdk 17.0.1)
結果
AC  
実行時間 210 ms / 2,000 ms
コード長 3,715 bytes
コンパイル時間 1,917 ms
使用メモリ 44,576 KB
最終ジャッジ日時 2022-11-25 19:10:19
合計ジャッジ時間 11,170 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge11
このコードへのチャレンジ（β）

テストケース

テストケース表示
入力 結果 実行時間
使用メモリ
testcase_00 AC 43 ms
34,268 KB
testcase_01 AC 42 ms
34,080 KB
testcase_02 AC 42 ms
34,320 KB
testcase_03 AC 182 ms
41,860 KB
testcase_04 AC 210 ms
44,576 KB
testcase_05 AC 153 ms
40,924 KB
testcase_06 AC 144 ms
41,240 KB
testcase_07 AC 130 ms
40,548 KB
testcase_08 AC 140 ms
40,696 KB
testcase_09 AC 121 ms
39,416 KB
testcase_10 AC 151 ms
41,120 KB
testcase_11 AC 176 ms
43,416 KB
testcase_12 AC 148 ms
41,056 KB
testcase_13 AC 170 ms
41,720 KB
testcase_14 AC 153 ms
42,000 KB
testcase_15 AC 192 ms
44,536 KB
testcase_16 AC 175 ms
42,920 KB
testcase_17 AC 173 ms
42,812 KB
testcase_18 AC 191 ms
42,292 KB
testcase_19 AC 45 ms
34,348 KB
testcase_20 AC 44 ms
34,160 KB
testcase_21 AC 45 ms
34,300 KB
testcase_22 AC 184 ms
42,108 KB
testcase_23 AC 189 ms
42,204 KB
testcase_24 AC 201 ms
41,520 KB
testcase_25 AC 186 ms
42,060 KB
testcase_26 AC 177 ms
42,592 KB
testcase_27 AC 179 ms
42,284 KB
testcase_28 AC 190 ms
42,172 KB
testcase_29 AC 194 ms
42,088 KB
testcase_30 AC 186 ms
42,884 KB
testcase_31 AC 203 ms
42,340 KB
testcase_32 AC 166 ms
42,248 KB
testcase_33 AC 162 ms
41,424 KB
testcase_34 AC 171 ms
42,668 KB
testcase_35 AC 161 ms
41,180 KB
testcase_36 AC 159 ms
41,028 KB
testcase_37 AC 174 ms
42,728 KB
testcase_38 AC 164 ms
40,612 KB
testcase_39 AC 136 ms
40,160 KB
testcase_40 AC 180 ms
41,592 KB
testcase_41 AC 177 ms
41,284 KB
testcase_42 AC 89 ms
35,884 KB
testcase_43 AC 110 ms
37,984 KB
testcase_44 AC 89 ms
36,304 KB
testcase_45 AC 109 ms
36,816 KB
testcase_46 AC 75 ms
36,032 KB
testcase_47 AC 129 ms
38,388 KB
testcase_48 AC 86 ms
35,876 KB
testcase_49 AC 74 ms
35,216 KB
testcase_50 AC 87 ms
36,072 KB
testcase_51 AC 93 ms
36,380 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();
        int[] a = sc.nextIntArray(n);
        ArrayList<Integer> arr = new ArrayList<>();
        for(int i = 0; i < n; i++){
            if(a[i] == 0){
                arr.add(i);
            }
        }
        arr.add(n);
        long ans = 0;
        for(int i = 0; i < arr.size()-1; i++){
            long now = arr.get(i)+1;
            long next = arr.get(i+1)+1;
            ans += now*(next-now);
            //pw.println(ans);
        }
        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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