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Submission #307571

# Submission time Handle Problem Language Result Execution time Memory
307571 2020-09-28T16:02:45 Z KWang31 Packing Biscuits (IOI20_biscuits) Java 11
100 / 100
 863 ms 66080 KB 
import java.io.*; import java.util.*;
class biscuits {

    static HashMap<Long, Long> dp;
    
    public static long count_tastiness(long x, long[] a){
        int k=a.length;
        dp=new HashMap<>();
        dp.put((long)0,(long)0);
        dp.put((long)1,(long)1);
        //psa is bounded by 10^{18}
        long[] psa=new long[61];
        psa[0]=a[0];
        for (int i = 1; i <k; i++) {
            psa[i]=psa[i-1]+((long)a[i]<<i);
        }
        for (int i = k; i < 61; i++) {
            psa[i]=psa[i-1];
        }
        for (int i = 1; i <=60; i++) {
            comp((long)1<<i,psa,x);
        }
        return dp.get((long)1<<60);
        
    }
    public static void comp(long n, long[] psa, long x){
        
        if(dp.get(n)==null){
            int i=0;
            long p=1;
            while(p<n){
               p*=2; i++;
            }
            p/=2; i--;
            
            long ans=dp.get(p);
            
            long min=Math.max(0,Math.min((long)n-p,(long) 1+psa[i]/x-p));
            comp(min,psa,x);
            ans+=dp.get(min);
            dp.put(n, ans);
        }
        
    }
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 10736 KB Output is correct
2 Correct 99 ms 10744 KB Output is correct
3 Correct 108 ms 10852 KB Output is correct
4 Correct 108 ms 10508 KB Output is correct
5 Correct 103 ms 10652 KB Output is correct
6 Correct 107 ms 11128 KB Output is correct
7 Correct 99 ms 10616 KB Output is correct
8 Correct 100 ms 10620 KB Output is correct
9 Correct 99 ms 10856 KB Output is correct
10 Correct 100 ms 10744 KB Output is correct
11 Correct 98 ms 10716 KB Output is correct
12 Correct 100 ms 10912 KB Output is correct
13 Correct 109 ms 10992 KB Output is correct
14 Correct 103 ms 11256 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 97 ms 10488 KB Output is correct
2 Correct 96 ms 10788 KB Output is correct
3 Correct 112 ms 11236 KB Output is correct
4 Correct 119 ms 11996 KB Output is correct
5 Correct 115 ms 11504 KB Output is correct
6 Correct 111 ms 11512 KB Output is correct
7 Correct 115 ms 11652 KB Output is correct
8 Correct 104 ms 11252 KB Output is correct
9 Correct 108 ms 11120 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 10744 KB Output is correct
2 Correct 101 ms 11196 KB Output is correct
3 Correct 108 ms 11616 KB Output is correct
4 Correct 109 ms 11496 KB Output is correct
5 Correct 113 ms 11096 KB Output is correct
6 Correct 113 ms 11616 KB Output is correct
7 Correct 109 ms 11464 KB Output is correct
8 Correct 109 ms 11512 KB Output is correct
9 Correct 107 ms 10932 KB Output is correct
10 Correct 118 ms 12516 KB Output is correct
11 Correct 125 ms 13312 KB Output is correct
12 Correct 126 ms 13936 KB Output is correct
13 Correct 120 ms 13412 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 485 ms 39700 KB Output is correct
2 Correct 639 ms 47904 KB Output is correct
3 Correct 594 ms 47920 KB Output is correct
4 Correct 608 ms 47448 KB Output is correct
5 Correct 506 ms 44788 KB Output is correct
6 Correct 503 ms 47596 KB Output is correct
7 Correct 485 ms 48412 KB Output is correct
8 Correct 503 ms 46560 KB Output is correct
9 Correct 469 ms 47284 KB Output is correct
10 Correct 507 ms 44728 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 10736 KB Output is correct
2 Correct 99 ms 10744 KB Output is correct
3 Correct 108 ms 10852 KB Output is correct
4 Correct 108 ms 10508 KB Output is correct
5 Correct 103 ms 10652 KB Output is correct
6 Correct 107 ms 11128 KB Output is correct
7 Correct 99 ms 10616 KB Output is correct
8 Correct 100 ms 10620 KB Output is correct
9 Correct 99 ms 10856 KB Output is correct
10 Correct 100 ms 10744 KB Output is correct
11 Correct 98 ms 10716 KB Output is correct
12 Correct 100 ms 10912 KB Output is correct
13 Correct 109 ms 10992 KB Output is correct
14 Correct 103 ms 11256 KB Output is correct
15 Correct 97 ms 10488 KB Output is correct
16 Correct 96 ms 10788 KB Output is correct
17 Correct 112 ms 11236 KB Output is correct
18 Correct 119 ms 11996 KB Output is correct
19 Correct 115 ms 11504 KB Output is correct
20 Correct 111 ms 11512 KB Output is correct
21 Correct 115 ms 11652 KB Output is correct
22 Correct 104 ms 11252 KB Output is correct
23 Correct 108 ms 11120 KB Output is correct
24 Correct 105 ms 10744 KB Output is correct
25 Correct 101 ms 11196 KB Output is correct
26 Correct 108 ms 11616 KB Output is correct
27 Correct 109 ms 11496 KB Output is correct
28 Correct 113 ms 11096 KB Output is correct
29 Correct 113 ms 11616 KB Output is correct
30 Correct 109 ms 11464 KB Output is correct
31 Correct 109 ms 11512 KB Output is correct
32 Correct 107 ms 10932 KB Output is correct
33 Correct 118 ms 12516 KB Output is correct
34 Correct 125 ms 13312 KB Output is correct
35 Correct 126 ms 13936 KB Output is correct
36 Correct 120 ms 13412 KB Output is correct
37 Correct 485 ms 39700 KB Output is correct
38 Correct 639 ms 47904 KB Output is correct
39 Correct 594 ms 47920 KB Output is correct
40 Correct 608 ms 47448 KB Output is correct
41 Correct 506 ms 44788 KB Output is correct
42 Correct 503 ms 47596 KB Output is correct
43 Correct 485 ms 48412 KB Output is correct
44 Correct 503 ms 46560 KB Output is correct
45 Correct 469 ms 47284 KB Output is correct
46 Correct 507 ms 44728 KB Output is correct
47 Correct 498 ms 42220 KB Output is correct
48 Correct 566 ms 47312 KB Output is correct
49 Correct 533 ms 44408 KB Output is correct
50 Correct 581 ms 47124 KB Output is correct
51 Correct 488 ms 36776 KB Output is correct
52 Correct 499 ms 37124 KB Output is correct
53 Correct 420 ms 36188 KB Output is correct
54 Correct 863 ms 66080 KB Output is correct
55 Correct 660 ms 58784 KB Output is correct
56 Correct 651 ms 63632 KB Output is correct
57 Correct 614 ms 63096 KB Output is correct