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## Discussion of Problem 1020. Rope

WA#3
Posted by VladimirZagorodskih 28 Feb 2010 10:57
I couldn't understand my mistake! On my tests it works correct.

program project1;
var
n, i : longint;
r, res, x, y, x1, y1, x0, y0 : extended;
begin
{\$IFNDEF ONLINE_JUDGE}
assign(input, 'input.txt');
assign(output, 'output.txt');
reset(input);
rewrite(output);
{\$ENDIF}
x0:=x;
y0:=y;
res:=2*pi*r;
for i:=1 to n-1 do begin
res:=res+sqrt(sqr(x1-x)+sqr(y1-y));
y:=y1;
x:=x1;
end;
res:=trunc(res*100)/100;
write((res+sqrt(sqr(x1-x0)+sqr(y1-y0))):1:2);
{\$IFNDEF ONLINE_JUDGE}
close(input);
close(output);
{\$ENDIF}
end.
Re: WA#3
Posted by Petrova Valentina [USU] 3 Mar 2011 23:46
I've got the same problem=) May be there is a mistake with counting doubles (extended) and printing the answer... I suppose

Edited by author 03.03.2011 23:46

Edited by author 03.03.2011 23:47
Re: WA#3
Posted by SpartakusMd 20 Mar 2012 04:17
On the test 3 n=1, so you need to print the perimeter of nail.
Good luck
Re: WA#3
Posted by Mehedi Imam Shafi 26 Sep 2016 10:51
SpartakusMd wrote 20 March 2012 04:17
On the test 3 n=1, so you need to print the perimeter of nail.
Good luck
thanks helped
Re: WA#3
Posted by Mozammal Hossain 15 Mar 2019 02:18
for n=1,r=1.
What will be the answer? is there any effect on axes position?