제출 #1127805

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1127805		Oz121	Rabbit Carrot (LMIO19_triusis)	Java	63 / 100	1099 ms	32668 KiB

triusis

import java.io.*;
import java.util.*;
public class triusis {
    public static void main(String[] args) throws IOException {
        BufferedReader scan = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer l1 = new StringTokenizer(scan.readLine()); int num = Integer.parseInt(l1.nextToken()); int jump = Integer.parseInt(l1.nextToken());
        int[] arr = new int[num];
        for (int i = 0;i<num;i++) {
            StringTokenizer st = new StringTokenizer(scan.readLine());
            arr[i] = Integer.parseInt(st.nextToken());
        }

        int[] dp = new int[num+1];
        Arrays.fill(dp, -1); dp[0] = 0;
        for (int i = 0;i<num;i++) {
            for (int j = i+1;j>=1;j--) {
                if (dp[j]>=Math.max(0,arr[i]-jump)) {
                    dp[j] = arr[i];
                    if (dp[j-1]!=-1) dp[j] = Math.max(dp[j], dp[j-1]+jump);
                } else {
                    if (dp[j-1]==-1) dp[j] = -1;
                    else dp[j] = dp[j-1]+jump;
                }
            }

            if (dp[0]>=Math.max(0,arr[i]-jump)) dp[0] = arr[i];
            else dp[0] = -1;
        }

        int ans = num;
        for (int i = num;i>=0;i--) {
            if (dp[i]!=-1) ans = i;
        }
        System.out.println(ans);
    }
}

• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 28 / 28
• Subtask 4: 0 / 37