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Submission #309473

# Submission time Handle Problem Language Result Execution time Memory
309473 2020-10-03T14:17:31 Z Ruxandra985 Packing Biscuits (IOI20_biscuits) C++14
100 / 100
 84 ms 1016 KB 
#include <bits/stdc++.h>
#include "biscuits.h"

using namespace std;

map <long long , long long> mp[61];
long long s[61];
long long x2;

long long rec (int bit , long long nr){
    long long sum = 0;
    if (bit < 0)
        return 1;

    nr = min(nr , s[bit] / x2);
    nr = min(nr , (1LL << (bit + 1)));

    if (mp[bit].find(nr) != mp[bit].end()){ /// exista deja
        return mp[bit][nr];
    }

    if ((1LL << bit) <= nr){ /// nr tine de s[i], de asta, asta ins ca poate fi bitul 1

        sum += rec(bit - 1 , nr - (1LL << bit));
    }

    /// altfel pui bitul 0 aici

    sum += rec (bit - 1 , nr);

    mp[bit][nr] = sum;
    return sum;


}

long long count_tastiness(long long x, vector<long long> a) {
    int i;

    x2 = x;

    for (i = 0 ; i <= 60 ; i++){
        mp[i].clear();
        s[i] = 0;
    }
    s[60] = 0;

    for (i = 0 ; i <= 60 ; i++){
        if (i < a.size())
            s[i] += a[i] * (1LL << i);
        if (i)
            s[i] += s[i - 1];
    }

    /// s[i] / x e un fel de maxim posibil sa ai pana la i

	return rec(60 , min( s[60] / x , (1LL << 60) ) );
}

Compilation message

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:49:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |         if (i < a.size())
      |             ~~^~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 1 ms 256 KB Output is correct
14 Correct 1 ms 256 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 288 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 384 KB Output is correct
2 Correct 30 ms 896 KB Output is correct
3 Correct 29 ms 896 KB Output is correct
4 Correct 28 ms 896 KB Output is correct
5 Correct 27 ms 896 KB Output is correct
6 Correct 36 ms 1016 KB Output is correct
7 Correct 34 ms 896 KB Output is correct
8 Correct 32 ms 896 KB Output is correct
9 Correct 31 ms 896 KB Output is correct
10 Correct 22 ms 896 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 1 ms 256 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 1 ms 288 KB Output is correct
21 Correct 1 ms 256 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 256 KB Output is correct
25 Correct 0 ms 256 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 1 ms 384 KB Output is correct
37 Correct 7 ms 384 KB Output is correct
38 Correct 30 ms 896 KB Output is correct
39 Correct 29 ms 896 KB Output is correct
40 Correct 28 ms 896 KB Output is correct
41 Correct 27 ms 896 KB Output is correct
42 Correct 36 ms 1016 KB Output is correct
43 Correct 34 ms 896 KB Output is correct
44 Correct 32 ms 896 KB Output is correct
45 Correct 31 ms 896 KB Output is correct
46 Correct 22 ms 896 KB Output is correct
47 Correct 8 ms 384 KB Output is correct
48 Correct 23 ms 896 KB Output is correct
49 Correct 10 ms 384 KB Output is correct
50 Correct 23 ms 768 KB Output is correct
51 Correct 16 ms 896 KB Output is correct
52 Correct 5 ms 384 KB Output is correct
53 Correct 14 ms 768 KB Output is correct
54 Correct 84 ms 1016 KB Output is correct
55 Correct 69 ms 896 KB Output is correct
56 Correct 64 ms 896 KB Output is correct
57 Correct 55 ms 912 KB Output is correct