QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #240856 | #6558. Allergen Testing | MovingUp# | WA | 3ms | 3664kb | C++14 | 630b | 2023-11-05 20:17:25 | 2023-11-05 20:17:25 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
const int maxn = 5e5 + 10;
const int mod = 1e9 + 7;
void solve_case() {
ll n, d;
cin >> n >> d;
if (n == 1) {
cout << 0 << "\n";
return;
}
for (ll pw = 1; pw < 63; pw++) {
ll p = 1ll << pw;
ll r;
if (n <= p) {
r = 1;
} else {
ll n_ = n - p;
p--;
r = 1 + ((n_ + p - 1) / p);
}
if (r <= d) {
cout << pw << "\n";
return;
}
}
}
int main()
{
ios_base::sync_with_stdio(false), cin.tie(0);
int t;
cin >> t;
while (t--) {
solve_case();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3664kb
input:
1 4 1
output:
2
result:
ok single line: '2'
Test #2:
score: -100
Wrong Answer
time: 3ms
memory: 3648kb
input:
10000 1 1 1000000000000000000 1 1 1000000000000000000 1000000000000000000 1000000000000000000 26615519354743225 163142634 26615519354743225 163142634 26615519354743224 163142634 26615519354743226 163142634 847997831064072529 920867976 847997831064072529 920867976 847997831064072528 920867976 8479978...
output:
0 60 0 1 28 28 28 28 30 30 30 30 29 29 29 29 29 29 29 29 30 30 30 30 30 30 30 30 28 28 28 28 26 26 26 26 30 30 30 30 29 29 29 29 39 39 39 39 40 40 40 40 40 40 40 40 37 37 37 37 36 36 36 36 39 39 39 39 40 40 40 40 38 38 38 38 39 39 39 39 40 40 40 40 42 42 42 42 43 43 43 43 41 41 41 41 39 39 39 39 40 ...
result:
wrong answer 5th lines differ - expected: '2', found: '28'