#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
long long count_tastiness(long long x, vector<long long> a) {
int k = (int) a.size();
auto b = a;
for (int i = 1; i < k; i++) {
b[i] += b[i - 1] / 2;
}
while (b.back() > 0) {
k += 1;
a.emplace_back(0);
b.emplace_back(b.back() / 2);
}
vector<long long> dp_on(k); // dp_on[i] = first i bits, i-th bit is on
vector<long long> dp_off(k); // dp_off[i] = first i bits, i-th bit is off
for (int i = 0; i < k; i++) {
dp_off[i] = (i > 0 ? (dp_on[i - 1] + dp_off[i - 1]) : 1);
if (b[i] < x) {
dp_on[i] = 0;
} else {
dp_on[i] = 1;
long long need = max(0ll, x - a[i]);
for (int j = i - 1; j >= 0; j--) {
need = need * 2;
if (b[j] >= need + x) {
dp_on[i] += dp_off[j]; // turn the j-th bit off
need = max(0ll, need + x - a[j]); // turn the j-th bit on
} else {
need = max(0ll, need - a[j]); // the j-th bit can only be off
}
}
}
}
return dp_on[k - 1] + dp_off[k - 1];
}
# |
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 |
0 ms |
256 KB |
Output is correct |
5 |
Correct |
1 ms |
256 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
256 KB |
Output is correct |
8 |
Correct |
0 ms |
256 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 |
256 KB |
Output is correct |
12 |
Correct |
0 ms |
256 KB |
Output is correct |
13 |
Correct |
1 ms |
256 KB |
Output is correct |
14 |
Correct |
0 ms |
256 KB |
Output is correct |
# |
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 |
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 |
1 ms |
256 KB |
Output is correct |
# |
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 |
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 |
1 ms |
256 KB |
Output is correct |
12 |
Correct |
1 ms |
256 KB |
Output is correct |
13 |
Correct |
1 ms |
256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
384 KB |
Output is correct |
2 |
Correct |
12 ms |
896 KB |
Output is correct |
3 |
Correct |
12 ms |
896 KB |
Output is correct |
4 |
Correct |
14 ms |
896 KB |
Output is correct |
5 |
Correct |
12 ms |
896 KB |
Output is correct |
6 |
Correct |
12 ms |
896 KB |
Output is correct |
7 |
Correct |
11 ms |
896 KB |
Output is correct |
8 |
Correct |
10 ms |
896 KB |
Output is correct |
9 |
Correct |
14 ms |
896 KB |
Output is correct |
10 |
Correct |
10 ms |
896 KB |
Output is correct |
# |
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 |
0 ms |
256 KB |
Output is correct |
5 |
Correct |
1 ms |
256 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
256 KB |
Output is correct |
8 |
Correct |
0 ms |
256 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 |
256 KB |
Output is correct |
12 |
Correct |
0 ms |
256 KB |
Output is correct |
13 |
Correct |
1 ms |
256 KB |
Output is correct |
14 |
Correct |
0 ms |
256 KB |
Output is correct |
15 |
Correct |
1 ms |
256 KB |
Output is correct |
16 |
Correct |
0 ms |
256 KB |
Output is correct |
17 |
Correct |
0 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 |
256 KB |
Output is correct |
21 |
Correct |
0 ms |
256 KB |
Output is correct |
22 |
Correct |
1 ms |
256 KB |
Output is correct |
23 |
Correct |
1 ms |
256 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 |
256 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 |
0 ms |
256 KB |
Output is correct |
31 |
Correct |
1 ms |
256 KB |
Output is correct |
32 |
Correct |
0 ms |
256 KB |
Output is correct |
33 |
Correct |
1 ms |
256 KB |
Output is correct |
34 |
Correct |
1 ms |
256 KB |
Output is correct |
35 |
Correct |
1 ms |
256 KB |
Output is correct |
36 |
Correct |
1 ms |
256 KB |
Output is correct |
37 |
Correct |
3 ms |
384 KB |
Output is correct |
38 |
Correct |
12 ms |
896 KB |
Output is correct |
39 |
Correct |
12 ms |
896 KB |
Output is correct |
40 |
Correct |
14 ms |
896 KB |
Output is correct |
41 |
Correct |
12 ms |
896 KB |
Output is correct |
42 |
Correct |
12 ms |
896 KB |
Output is correct |
43 |
Correct |
11 ms |
896 KB |
Output is correct |
44 |
Correct |
10 ms |
896 KB |
Output is correct |
45 |
Correct |
14 ms |
896 KB |
Output is correct |
46 |
Correct |
10 ms |
896 KB |
Output is correct |
47 |
Correct |
4 ms |
384 KB |
Output is correct |
48 |
Correct |
17 ms |
896 KB |
Output is correct |
49 |
Correct |
6 ms |
384 KB |
Output is correct |
50 |
Correct |
15 ms |
768 KB |
Output is correct |
51 |
Correct |
13 ms |
896 KB |
Output is correct |
52 |
Correct |
3 ms |
384 KB |
Output is correct |
53 |
Correct |
11 ms |
768 KB |
Output is correct |
54 |
Correct |
14 ms |
896 KB |
Output is correct |
55 |
Correct |
14 ms |
896 KB |
Output is correct |
56 |
Correct |
14 ms |
896 KB |
Output is correct |
57 |
Correct |
14 ms |
896 KB |
Output is correct |