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#include <iostream>
using namespace std;
#define byte int
#ifndef MF_len
#define MF_len 5
#endif
class MF
{
public:
MF()
{
for(int i=0; i<MF_len; ++i){ data[i] = 0; index[i] = i+1; }
}
float update(float dummy)
{
byte i1 = 0;
byte i2 = 0;
bool FIO = 0;
while((data[i1] < dummy) and (i1 < MF_len))
{
if(index[i1] == 1) // skip first-in
{
FIO = 1;
}
else // shift forward
{
data[i2] = data[i1]; index[i2] = index[i1] - 1;
++i2;
}
++i1;
cout << i1<< ' '<<((i1 < MF_len)?' ':'!') << '<' << MF_len<< endl;
//if(!(i1 < MF_len)){break;}
}
if(FIO) // first-in found. exit
{
cout << i2<< endl;
data[i2] = dummy; index[i2] = MF_len; // new data point
return data[MF_len>>1]; // return median
}
i1 = MF_len-1;
byte i3 = i1;
while(i1 >= i2)
{
if(index[i1] == 1) // skip first-in
{
FIO = 1;
}
else // shift backward
{
data[i3] = data[i1]; index[i3] = index[i1] - 1;
--i3;
}
--i1;
}
cout << i2<< endl;
data[i2] = dummy; index[i2] = MF_len; // first-in found. exit
return data[MF_len>>1];
}
friend ostream &operator << (ostream & out, const MF &mf)
{
for(int i=0; i<MF_len; ++i)
{
cout << mf.data[i] << ' ';
}
return out;
}
~MF(){}
private:
float data[MF_len];
byte index[MF_len];
};
int main()
{
float v = 0;
MF f;
cout<<f<< f.update(100) << endl;
cout<<f<< f.update(150) << endl;
cout<<f<< f.update(550) << endl;
cout<<f<< f.update(100000) << endl;
cout<<f<< f.update(-1000) << endl;
cout<<f<< f.update(190) << endl;
cout<<f<< f.update(200) << endl;
cout<<f<< f.update(130) << endl;
cout<<f<< f.update(1000) << endl;
cout<<f<< f.update(-240) << endl;
cout<<f<< f.update(100) << endl;
return 0;
}
