QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #201390 | #5152. Circular Caramel Cookie | Vengeful_Spirit# | WA | 1ms | 3852kb | C++14 | 842b | 2023-10-05 14:04:50 | 2023-10-05 14:04:51 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
long long n;
double eps = 1e-11;
int main() {
cin >> n;
n = (n + 3) / 4;
long double l = 0, r = 70000;
// long double l = 4.95, r = 5.05;
while(r - l >= eps) {
long double mid = (l + r) / 2.0;
long long num = 0;
for(int i = 1; i <= 70000; ++i) {
long long _ = (long long)(mid*mid)-(long long)(i*i);
if(_ <= 0) break;
long long ans = (long long)sqrt(_);
// cerr << "_= " << _ << " " << ans << "\n";
num += ans;
if(ans == 0) break;
}
// cerr << mid << " " << num << "\n";
if(num >= n) {
r = mid;
} else {
l = mid;
}
}
cout << fixed << setprecision(10) << (r+l)/2;
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3744kb
input:
11
output:
2.2360679775
result:
ok found '2.2360680', expected '2.2360680', error '0.0000000'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
59
output:
5.0000000000
result:
ok found '5.0000000', expected '5.0000000', error '0.0000000'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
1
output:
1.4142135624
result:
ok found '1.4142136', expected '1.4142136', error '0.0000000'
Test #4:
score: 0
Accepted
time: 0ms
memory: 3748kb
input:
2
output:
1.4142135624
result:
ok found '1.4142136', expected '1.4142136', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
3
output:
1.4142135624
result:
ok found '1.4142136', expected '1.4142136', error '0.0000000'
Test #6:
score: -100
Wrong Answer
time: 0ms
memory: 3808kb
input:
4
output:
1.4142135624
result:
wrong answer 1st numbers differ - expected: '2.2360680', found: '1.4142136', error = '0.3675445'