I don't know where I made mistake,it falls on 5th example!!!


# include <iostream>
using namespace std;
int n,k,m,sol;
int main ()
{
    cin>>n>>k;
    m=n/2;
    if (k==m) sol=0;
    if (k<m) sol=m-k;
    if (k>m) sol=k-m-1;
    cout<<sol<<endl;
    system("pause");
}

Mine too.

where is my mistake? falls on 5th

var i,nr,n,k,c:integer;
begin
read(n,k);
nr:=trunc(n/2);
if (k>nr) then
begin
for i:=nr+1 to k-1 do
inc(c);
end;
if (k<nr) then
begin
for i:=k+1 to nr do
inc(c);
end;
write(c);
end.