Submission #1233288

#	Time	Username	Problem	Language	Result	Execution time	Memory
1233288		shre99	Knapsack (NOI18_knapsack)	Java	Compilation error	0 ms	0 KiB

knapsack

import java.io.*;
import java.util.*;
public class main {
    // For fast input output
    static class FastReader {
        BufferedReader br;
        StringTokenizer st;
        public FastReader()
        { try {
            if (System.getProperty("ONLINE_JUDGE") == null) {
                br = new BufferedReader(new FileReader("input.txt"));
                PrintStream out = new PrintStream(new FileOutputStream("output.txt"));
                System.setOut(out);
            } else {
                br = new BufferedReader(new InputStreamReader(System.in));
            }
        } catch (Exception e) {
            br = new BufferedReader(new InputStreamReader(System.in));
        }
        }
        String next()
        {
            while (st == null || !st.hasMoreElements()) {
                try {st = new StringTokenizer(br.readLine());}
                catch (IOException e) {
                    e.printStackTrace();}
            }
            return st.nextToken();
        }
        int nextInt() { return Integer.parseInt(next()); }
        long nextLong() { return Long.parseLong(next()); }
        double nextDouble() {return Double.parseDouble(next()); }
        String nextLine()
        {
            String str = "";
            try {
            str = br.readLine();
            }
            catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
    // end of fast i/o code
    public static void main(String[] args) {
        FastReader reader = new FastReader();
        
        int s = reader.nextInt();
        int n = reader.nextInt();

        long[] currMaxVal = new long[s + 1];

        while (n-- > 0) {
            long v = reader.nextLong();
            int w = reader.nextInt();
            long k = reader.nextLong();

            for(int i = s; i > 0; i--) {
                int it = s - w, itCtr = 1;
                k--;
                while (it >= 0 && k >= 0) {
                    currMaxVal[i] = Math.max(currMaxVal[i], currMaxVal[it] + ((long)itCtr * v));
                    s -= w;
                    itCtr++;
                    k--;
                }
            }
        }

        long max = 0;
        for(int i = 0; i <= s; i++) max = Math.max(max, currMaxVal[i]);

        System.out.println(max);
    }
}

Compilation message (stderr)

knapsack.java:3: error: class main is public, should be declared in a file named main.java
public class main {
       ^
1 error

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