### THANKS

Posted:

**Mon Jun 26, 2006 9:13 pm**Sohel,

So kind of u.

THANK U SO MUCH. I get AC now .

take care n keep well, ok?

So kind of u.

THANK U SO MUCH. I get AC now .

take care n keep well, ok?

The UVa Online Judge board

https://uva.onlinejudge.org/board/

Page **2** of **2**

Posted: **Mon Jun 26, 2006 9:13 pm**

Sohel,

So kind of u.

THANK U SO MUCH. I get AC now .

take care n keep well, ok?

So kind of u.

THANK U SO MUCH. I get AC now .

take care n keep well, ok?

Posted: **Wed Jun 20, 2007 1:57 am**

My code gives WA...... Please help

Code: Select all

```
#include<iostream>
#include<cmath>
using namespace std;
int main()
{
double n,ang,area,r,r2,rim,areaspec,areaoffi,d1;
unsigned long long ar;
int count=0;
while(cin>>n>>area)
{
if(n<3)
break;
count++;
ang=((2*acos(0.0))/n);
r=sqrt((area/(n*cos(ang)*sin(ang))));
r2=r*cos(ang);
areaspec=((2*acos(0.0)*r*r)-area);
areaoffi=(area-(2*acos(0.0)*r2*r2));
ar=(unsigned long long)(areaspec*100000);
d1=(areaspec*100000)-ar;
if(d1>0.5 ||(d1==0.5 && (unsigned long long)ar%2!=0))
ar++;
cout<<(double)ar/100000<<" ";
ar=(unsigned long long)(areaoffi*100000);
d1=(areaoffi*100000)-ar;
if(d1>0.5 ||(d1==0.5 && (unsigned long long)ar%2!=0))
ar++;
cout<<(double)ar/100000<<"\n";
}
}
```

Posted: **Thu Jun 21, 2007 1:43 am**

Forgot to print caseno?

Posted: **Sat Apr 12, 2008 9:47 am**

Someone please look at my code and tell me why i get WA....

i have tried a lot....

Thanx a lot...

i have tried a lot....

Code: Select all

```
// Ancient Village Sports 10451
#include<iostream>
#include<cmath>
using namespace std;
int main()
{
int ncase=0;
int n;
while(cin>>n)
{
ncase++;
long double area;
if(n<3) break;
cin>>area;
long double r = sqrt((2.0*area/(long double)n)/sin(4.0*acos(0.0)/(long double)n));
long double ri = r*cos(2.0*acos(0.0)/(long double)n);
r = (2.0*acos(0.0)*r*r) - area;
ri = area - (2.0*acos(0.0)*ri*ri);
r = 100000.0*r;
unsigned long long t = (unsigned long long)r;
if(((r-(long double)t)>0.5)||((r-(long double)t)==0.5 && t%2!=0))
t++;
r = (long double)t/100000.0;
ri = 100000.0*ri;
t = (unsigned long long)ri;
if(((ri-(long double)t)>0.5)||((ri-(long double)t)==0.5 && t%2!=0))
t++;
ri = (long double)t/100000.0;
cout<<"Case "<<ncase<<": "<<r<<" "<<ri<<endl;
}
return 0;
}
```

Posted: **Mon Sep 16, 2013 7:51 pm**

This is a precision-error prone problem. I had to tweak a lot in my code to get Accepted.

Well, after a lot of WAs, I found out the precision of the judge for this problem.

1. Read and compute values as doubles

2. Print answer as a float

3. Don't use epsilons

There are many formulas for this problem, all of which work. However, you may get trapped in the precision error so heed this advice.

Just change
into
or maybe explicitly cast your answer as float
Hope this helps

Well, after a lot of WAs, I found out the precision of the judge for this problem.

1. Read and compute values as doubles

2. Print answer as a float

3. Don't use epsilons

There are many formulas for this problem, all of which work. However, you may get trapped in the precision error so heed this advice.

Just change

Code: Select all

`printf( "Case %d: %.5lf %.5lf\n", ++CASES, a, b );`

Code: Select all

`printf( "Case %d: %.5f %.5f\n", ++CASES, a, b );`

Code: Select all

```
cout.precision(5);
cout << fixed;
cout << "Case " << ++CASES << ": " << (float)a << " " << (float)b << endl;
```

Posted: **Tue Aug 26, 2014 7:52 am**

please help me with my code.

I don't know why i'm always getting a WA..

please help

import java.util.*;

import java.math.*;

import java.io.*;

import java.text.*;

class Main

{

public static void main(String args[])throws Exception

{

Code Remove after getting AC in uva

}

}

I don't know why i'm always getting a WA..

please help

import java.util.*;

import java.math.*;

import java.io.*;

import java.text.*;

class Main

{

public static void main(String args[])throws Exception

{

Code Remove after getting AC in uva

}

}

Posted: **Tue Aug 26, 2014 5:39 pm**

Don't read from file. Read from standart input
Be careful with integer division. You must convert long to double. Change lines
Or
Don't forget to remove your code after getting accepted.

Code: Select all

`Scanner sc = new Scanner(System.in);`

Code: Select all

```
double Spectator = (2*PI*c)/(b*(Math.sin(Math.toRadians((double)360/b))));
double Official = (c*PI)/(b*(Math.tan(Math.toRadians((double)180/b))));
```

Code: Select all

```
double Spectator = (2*PI*c)/(b*(Math.sin(Math.toRadians(360.0/b))));
double Official = (c*PI)/(b*(Math.tan(Math.toRadians(180.0/b))));
```

Posted: **Mon Sep 01, 2014 9:38 am**

thanks for helping