You have to be very careful with scanf. It is wrong to write something like "scanf("%d\n", &n);" It took me a month to find this bug.

To Samsonov Alex: why?
please write answer(my mail Dembel12006@yandex.ru)

Edited by author 21.01.2007 14:25

Check your mail.

I also have WA on test #12. Could you tell me what about scanf (cwac@hackermail.com)

check your mail

Thanks!

Like many others I also got wa#12. Can you mail me (rddvl@mail.ru) this info about scanf? Thankful in advance.

Oh, god :)
I should better write it here. The thing is that if you use scanf("%d\n", &N);
it reads not only number N and line break but also all whitespace characters after this linebreak. So, for example, it is possible that your program fails here:

//some number
3
_1.e6//Space at the beginning of the line
3

It can say that ' 1.e6' is a correct number.

Edited by author 27.02.2007 23:10

Edited by author 27.02.2007 23:10

Thanks a lot, but this situation is correctly processed in my program. But I have another question. Is number "1.e6" correct ? I'm talking about it's fractional part. According to problem's notation there shouldn't be numbers with decimal point and without fractional part. What can you say about this?

Yes, it's incorrect indeed. My bug :)

Thanks for info anyway.

some tests:
carefully check your program behavior

-0.00
0
0

0.000e00000
0
0

0.00
5
0.00000

1e000000000000000000000000000000000012
3
1000000000000.000

-1e-12345678910111213141516
5
0.00000

-1.e-12
3
Not a floating point number

123.23e-12.4
0
Not a floating point number

-.12e4
2
-1200.00

123.3e0
12
123.300000000000

12.2e-10
5
0.00000

12.2e+10
3
122000000000.000

12 e3
21
Not a floating point number

I fixed all bugs, that i found in forum, but i still got WA on f---g test 12. Anybody! Help me!
Mail: mr_ffloyd@mail.ru

Edited by author 16.04.2007 19:19

I used
cin >> N; gets(s);
instead of
scanf("%d\n", &N);
and got AC :)

Also,
-0.0000010e+6
0
-1

(got me on test 12 and isn't mentioned here)

Maybe someone has already written about it, but I didn't find.

!!--BE CAREFUL:--!!

Test 12 is correct, it has big exponent part like
2E100000000000
10

and answer would look like
0.00..000

I have too ... wa12

i have tested all line on wrong simb..
on e>500 ...
on
#100...

can somebody help me...

de10@rambler.ru

big s!

I had a stupid error...
test:
12.
2
#

my program`s output was 12.00, should be NAN.

the right answer should be 2<many zeros>.<10 zeros>
but as it's granted that the output will not exceed 200 symbols, i don't think there will happen to be such inputs.
or the maximum output can be a too long to deal with.

>>Posted by SkorKNURE October 23, 2008 08:40
>>
>>Maybe someone has already written about it, but I didn't >>find.
>>
>>!!--BE CAREFUL:--!!
>>
>>Test 12 is correct, it has big exponent part like
>>2E100000000000
>>10
>>
>>and answer would look like
>>0.00..000

Edited by author 20.05.2009 21:33

Power can be vary big: as positive as negative! But "It is guaranteed that a length of a result will not exceed 200 symbols."

Very good test:
0.0e+1212121332233333333
2
#

0e1212121332233333333
2
#

answer: 0.00 =)

PS: thank you, PieceOfMeat ! Good test! You have helped me!

Edited by author 08.01.2012 05:41

Edited by author 08.01.2012 05:41