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Submission #633876

# Submission time Handle Problem Language Result Execution time Memory
633876 2022-08-23T10:55:53 Z tabr Packing Biscuits (IOI20_biscuits) C++17
100 / 100
 72 ms 1336 KB 
#include <bits/stdc++.h>
using namespace std;
#ifdef tabr
#include "library/debug.cpp"
#else
#define debug(...)
#endif

// editorial

long long count_tastiness(long long x, vector<long long> a) {
    a.resize(62);
    vector<long long> s(62);
    for (int i = 0; i < 62; i++) {
        s[i] = (i > 0 ? s[i - 1] : 0) + (a[i] << i);
    }
    map<long long, long long> memo;
    memo[1] = 1;
    function<long long(long long)> Solve = [&](long long n) {
        if (n <= 0) {
            return 0LL;
        }
        if (!memo.count(n)) {
            int i = 63 - __builtin_clzll(n - 1);
            memo[n] = Solve(1LL << i) + Solve(min(n, 1 + s[i] / x) - (1LL << i));
        }
        return memo[n];
    };
    return Solve(1LL << 61);
}

#ifdef tabr
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    debug(count_tastiness(3, {5, 2, 1}));  // 5
    debug(count_tastiness(2, {2, 1, 2}));  // 6
    return 0;
}
#endif

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 300 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 296 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 320 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 340 KB Output is correct
2 Correct 22 ms 1104 KB Output is correct
3 Correct 22 ms 1104 KB Output is correct
4 Correct 22 ms 1108 KB Output is correct
5 Correct 21 ms 1108 KB Output is correct
6 Correct 26 ms 1128 KB Output is correct
7 Correct 27 ms 1108 KB Output is correct
8 Correct 24 ms 1076 KB Output is correct
9 Correct 25 ms 1108 KB Output is correct
10 Correct 17 ms 1108 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 296 KB Output is correct
26 Correct 1 ms 300 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 296 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 320 KB Output is correct
37 Correct 7 ms 340 KB Output is correct
38 Correct 22 ms 1104 KB Output is correct
39 Correct 22 ms 1104 KB Output is correct
40 Correct 22 ms 1108 KB Output is correct
41 Correct 21 ms 1108 KB Output is correct
42 Correct 26 ms 1128 KB Output is correct
43 Correct 27 ms 1108 KB Output is correct
44 Correct 24 ms 1076 KB Output is correct
45 Correct 25 ms 1108 KB Output is correct
46 Correct 17 ms 1108 KB Output is correct
47 Correct 9 ms 408 KB Output is correct
48 Correct 19 ms 1324 KB Output is correct
49 Correct 11 ms 340 KB Output is correct
50 Correct 17 ms 1184 KB Output is correct
51 Correct 14 ms 1336 KB Output is correct
52 Correct 7 ms 340 KB Output is correct
53 Correct 12 ms 1184 KB Output is correct
54 Correct 72 ms 1184 KB Output is correct
55 Correct 63 ms 1108 KB Output is correct
56 Correct 56 ms 1108 KB Output is correct
57 Correct 46 ms 1220 KB Output is correct