結果

問題 No.45 回転寿司
ユーザー tutuztutuz
提出日時 2018-09-22 08:41:57
言語 Java21
(openjdk 21)
結果
AC  
実行時間 446 ms / 5,000 ms
コード長 3,314 bytes
コンパイル時間 1,879 ms
コンパイル使用メモリ 76,500 KB
実行使用メモリ 254,832 KB
最終ジャッジ日時 2023-08-27 16:37:44
合計ジャッジ時間 8,841 ms
ジャッジサーバーID
(参考情報)
judge13 / judge12
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 131 ms
85,016 KB
testcase_01 AC 198 ms
128,320 KB
testcase_02 AC 327 ms
224,420 KB
testcase_03 AC 365 ms
224,320 KB
testcase_04 AC 203 ms
128,932 KB
testcase_05 AC 80 ms
54,540 KB
testcase_06 AC 167 ms
112,092 KB
testcase_07 AC 328 ms
224,196 KB
testcase_08 AC 91 ms
66,220 KB
testcase_09 AC 361 ms
227,424 KB
testcase_10 AC 135 ms
88,744 KB
testcase_11 AC 89 ms
64,840 KB
testcase_12 AC 350 ms
225,696 KB
testcase_13 AC 70 ms
54,744 KB
testcase_14 AC 74 ms
52,456 KB
testcase_15 AC 146 ms
112,600 KB
testcase_16 AC 102 ms
77,316 KB
testcase_17 AC 125 ms
84,568 KB
testcase_18 AC 105 ms
76,924 KB
testcase_19 AC 259 ms
185,904 KB
testcase_20 AC 63 ms
52,204 KB
testcase_21 AC 70 ms
54,692 KB
testcase_22 AC 51 ms
51,108 KB
testcase_23 AC 50 ms
50,976 KB
testcase_24 AC 51 ms
50,764 KB
testcase_25 AC 51 ms
50,704 KB
testcase_26 AC 149 ms
111,492 KB
testcase_27 AC 252 ms
186,000 KB
testcase_28 AC 158 ms
111,668 KB
testcase_29 AC 219 ms
144,144 KB
testcase_30 AC 246 ms
186,660 KB
testcase_31 AC 50 ms
50,828 KB
testcase_32 AC 51 ms
50,708 KB
testcase_33 AC 446 ms
254,832 KB
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ソースコード

diff #

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.InputMismatchException;
import java.util.StringTokenizer;

public class Main {

	public static void main(String[] args) throws IOException {
		InputStream inputStream = System.in;
		OutputStream outputStream = System.out;
		InputReader in = new InputReader(inputStream);
		PrintWriter out = new PrintWriter(outputStream);
		TaskX solver = new TaskX();
		solver.solve(1, in, out);
		out.close();
	}

	static int INF = 1 << 30;
	static long LINF = 1L << 55;
	static int MOD = 1000000007;
	static int[] mh4 = { 0, -1, 1, 0 };
	static int[] mw4 = { -1, 0, 0, 1 };
	static int[] mh8 = { -1, -1, -1, 0, 0, 1, 1, 1 };
	static int[] mw8 = { -1, 0, 1, -1, 1, -1, 0, 1 };

	static class TaskX {

		int n;
		int[] a;
		int[][] memo;
		public void solve(int testNumber, InputReader in, PrintWriter out) {

			n = in.nextInt();
			a = in.nextIntArray(n);
			int sum = Arrays.stream(a).sum();
			memo = new int[n+1][sum+1];
			fill(memo, -1);

			int ans = f(0, 0);

			out.println(ans);
		}

		int f(int now, int v) {
			if (now >= n) {
				return v;
			}

			if (memo[now][v] != -1) {
				return memo[now][v];
			}

			return memo[now][v] = Math.max(f(now + 1, v), f(now + 2, v + a[now]));
		}
	}

	static void fill(int[][] memo, int v) {
		for (int i = 0; i < memo.length; i++) {
			Arrays.fill(memo[i], v);
		}
	}

	static class InputReader {
		BufferedReader in;
		StringTokenizer tok;

		public String nextString() {
			while (!tok.hasMoreTokens()) {
				try {
					tok = new StringTokenizer(in.readLine(), " ");
				} catch (IOException e) {
					throw new InputMismatchException();
				}
			}
			return tok.nextToken();
		}

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

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

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

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

		public int[] nextIntArrayDec(int n) {
			int[] res = new int[n];
			for (int i = 0; i < n; i++) {
				res[i] = nextInt() - 1;
			}
			return res;
		}

		public int[] nextIntArray1Index(int n) {
			int[] res = new int[n + 1];
			for (int i = 0; i < n; i++) {
				res[i + 1] = nextInt();
			}
			return res;
		}

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

		public long[] nextLongArrayDec(int n) {
			long[] res = new long[n];
			for (int i = 0; i < n; i++) {
				res[i] = nextLong() - 1;
			}
			return res;
		}

		public long[] nextLongArray1Index(int n) {
			long[] res = new long[n + 1];
			for (int i = 0; i < n; i++) {
				res[i + 1] = nextLong();
			}
			return res;
		}

		public double[] nextDoubleArray(int n) {
			double[] res = new double[n];
			for (int i = 0; i < n; i++) {
				res[i] = nextDouble();
			}
			return res;
		}

		public InputReader(InputStream inputStream) {
			in = new BufferedReader(new InputStreamReader(inputStream));
			tok = new StringTokenizer("");
		}
	}

}
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