What to do with this problem???

3
0 0
0 4
4 0
3 1

what's in this test

что в этом тесте может быть такого?
перепроверил все уже... все примеры с форума, свои придумал, но все-равно ВА17
кто знает тест?

Edited by author 01.08.2009 17:05

решил. спасибо всем )

Edited by author 01.08.2009 17:20

Could someone provide me with a test case? Each test from the discussion list passes ok. But still WA2.

Edited by author 20.12.2012 00:01

Program NoName;
var n,r,i:integer;
x: array [1..100] of real;
y: array [1..100] of real;
s,sg:real;
input,output:text;

begin
s:=0;
   assign(input, 'input.txt');
   reset(input);
   assign(output, 'output.txt');
   rewrite(output);


readln(n,r);
 if n=1 then writeln(1.00)else begin
   For i:=1 to n do
  readln(x[i],y[i]);
sg:=2*pi*r;
For i:=1 to n-1 do  s:=s+sqrt(sqr(x[i]-x[i+1])+sqr(y[i]-y[i+1]));
s:=s+sqrt(sqr(x[n]-x[1])+sqr(y[n]-y[1]));
s:=s+sg;
end;
writeln(s:1:2);
   close(input);
   close(output);
end.

Edited by author 19.12.2012 04:05
wrong test 4? 1837, why?
Edited by author 19.12.2012 04:06

Edited by author 19.12.2012 04:06

Edited by author 19.12.2012 04:06

Edited by author 19.12.2012 04:07

Edited by author 19.12.2012 04:10

I can't realize what my problem is! #1 must be the simplest test case ( or the sample given ) but I can't see anything in my code that seems to be wrong...
can YOU help me?

I got AC as I changed all ints to longs. I thought ints would be sufficient to do the sum. Still can't figure out why longs are needed.

could you explain me test and answer? i can't understand how this situation may happen

Please help

I've got a wrong answer on test 15.
By the way... in order to satisfy condition #4 we need to test each "good" point with each "good" point? won't it be too much iterations for n=10000?
P.S. "good" point is the point that satisfy the current arc?

I tried my solution, I think it should use at most 2MB of memory and got MLE on first test? Is it c# related problem or my solution is that bad?

#include<iostream>
#include<string>
using namespace std;
int n,sum[999],l=0;
char a[101],b[101];
int main(){
    cin>>n;
    for(int i=0;i<n;i++)
    cin>>a[i]>>b[i];

    for(int i=0;i<n;i++){
    if(a[i]=='a')
    a[i]='1';
    if(a[i]=='b')
    a[i]='2';
    if(a[i]=='c')
    a[i]='3';
    if(a[i]=='d')
    a[i]='4';
    if(a[i]=='e')
    a[i]='5';
    if(a[i]=='f')
    a[i]='6';
    if(a[i]=='g')
    a[i]='7';
    if(a[i]=='h')
    a[i]='8';
    }
    for(int i=0;i<n;i++){
        if(a[i]-48+2<=8&&a[i]-48+2>0&&b[i]-48+1<=8&&b[i]-48+1>0)
            sum[i]=sum[i]+1;
        if(a[i]-48+1<=8&&a[i]-48+1>0&&b[i]-48+2<=8&&b[i]-48+2>0)
            sum[i]=sum[i]+1;
        if(a[i]-48-1<=8&&a[i]-48-1>0&&b[i]-48+2<=8&&b[i]-48+2>0)
            sum[i]=sum[i]+1;
        if(a[i]-48-2<=8&&a[i]-48-2>0&&b[i]-48+1<=8&&b[i]-48+1>0)
            sum[i]=sum[i]+1;
        if(a[i]-48-2<=8&&a[i]-48-2>0&&b[i]-48-1<=8&&b[i]-48-1>0)
            sum[i]=sum[i]+1;
        if(a[i]-48-1<=8&&a[i]-48-1>0&&b[i]-48-2<=8&&b[i]-48-2>0)
            sum[i]=sum[i]+1;
        if(a[i]-48+1<=8&&a[i]-48+1>0&&b[i]-48-2<=8&&b[i]-48-2>0)
            sum[i]=sum[i]+1;
        if(a[i]-48+2<=8&&a[i]-48+2>0&&b[i]-48-1<=8&&b[i]-48-1>0)
            sum[i]=sum[i]+1;
        }
        for(int i=0;i<n;i++)
        cout<<sum[i]<<endl;
}

I have strange problem, my code is compiled well on my home PC (MS VC++ 2010 also), but the same code getting compilation error on Timus.
Let me present here a fragment of my code (All problem-related part was expunged, only variable declaration-initialization and input remained). This is also a compilable code on my PC. Can you consider it please. Thanks in advance.

#pragma comment(linker, "/STACK:5000000")
#include <iostream>
using namespace std;

int main()
{
    char tmp, or[250001], samp[750002];
    int N, z[750002];
    memset(&z[0], 0, 750002*4);
    scanf("%i", &N);
    scanf("%c", &tmp);
    cin.getline(or, 250001);
    cin.getline(samp, 750002);
    return 0;
}

Code above gives CE on Timus:

8002b36b-0800-4fc8-aa2b-53e6cb233ddd
8002b36b-0800-4fc8-aa2b-53e6cb233ddd(7) : error C2059: syntax error : '||'
8002b36b-0800-4fc8-aa2b-53e6cb233ddd(12) : error C2143: syntax error : missing ')' before '||'
8002b36b-0800-4fc8-aa2b-53e6cb233ddd(12) : error C2661: 'std::basic_istream<_Elem,_Traits>::getline' : no overloaded function takes 0 arguments
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
8002b36b-0800-4fc8-aa2b-53e6cb233ddd(12) : error C2059: syntax error : ','
8002b36b-0800-4fc8-aa2b-53e6cb233ddd(12) : error C2059: syntax error : ')'
8002b36b-0800-4fc8-aa2b-53e6cb233ddd(13) : error C2065: 'samp' : undeclared identifier

Why?
code pascal
program z1;
var s, s1:string;
    n, x:longint;
begin
  readln(n);
  readln(s);
  readln(s1);
  if s=s1 then write(0)
  else begin
  s:=s+s;
  case pos(s1, s) of
  1..250000:writeln(n-pos(s1, s)+1);
  else write(-1);
  end;
  end;
  readln;
  end.

Input: abc
Expected output: a

My program was failing test 2 because I was not initialing correctly and so returned b for this case. Just in case any one else has this problem.

What is in test 33 ?
The same code with Scanner is accepted but with StreamTokenizer and BufferedReader is giving WA33. Very unexpected result!! O_O


Edited by author 16.12.2012 10:56

There is one typo in both codes: Beautiful, not Beutiful.