QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #201524 | #5152. Circular Caramel Cookie | DreamOn# | WA | 1ms | 3904kb | C++23 | 849b | 2023-10-05 14:57:15 | 2023-10-05 14:57:16 |
Judging History
answer
#include<bits/stdc++.h>
#define db long double
#define ll long long
#define eps 1e-9
using namespace std;
template<typename T>
inline void read( T &n )
{
n=0;bool w=false;char ch=getchar();
while( ch>'9' || ch<'0' ) w=!(ch^'-'),ch=getchar();
while( ch<='9' && ch>='0' ) n=(n<<3)+(n<<1)+(ch^48),ch=getchar();
n=w?-n:n;
}
namespace kk
{///////////
ll count( double r )
{
ll ret=0;
for(ll i=r;i>=1;i--)
{
ll l=sqrt(r*r-i*i);
while( l*l+i*i>r*r ) l--;
while( (l+1)*(l+1)+i*i<r*r ) l++;
ret+=l;
}
return ret<<2;
}
ll s;
void solve()
{
read(s);
db l=1,r=1e5,ans;
while( r-l>=eps )
{
db mid=(l+r)/2;
if( count(mid)>=s )
ans=mid,r=mid;
else l=mid;
}
cout << fixed << setprecision(10);
cout << ans << endl;
}
}//////////
int main()
{
kk::solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3796kb
input:
11
output:
2.2360679781
result:
ok found '2.2360680', expected '2.2360680', error '0.0000000'
Test #2:
score: 0
Accepted
time: 1ms
memory: 3904kb
input:
59
output:
5.0000000002
result:
ok found '5.0000000', expected '5.0000000', error '0.0000000'
Test #3:
score: 0
Accepted
time: 1ms
memory: 3724kb
input:
1
output:
1.4142135626
result:
ok found '1.4142136', expected '1.4142136', error '0.0000000'
Test #4:
score: 0
Accepted
time: 1ms
memory: 3864kb
input:
2
output:
1.4142135626
result:
ok found '1.4142136', expected '1.4142136', error '0.0000000'
Test #5:
score: 0
Accepted
time: 1ms
memory: 3784kb
input:
3
output:
1.4142135626
result:
ok found '1.4142136', expected '1.4142136', error '0.0000000'
Test #6:
score: -100
Wrong Answer
time: 1ms
memory: 3720kb
input:
4
output:
1.4142135626
result:
wrong answer 1st numbers differ - expected: '2.2360680', found: '1.4142136', error = '0.3675445'