Λιγο βοήθεια με τη C

[Dimitris Mexis]

On Sun, 02 Jul 2006 21:36:59 +0300, V13 wrote:

> On Thursday 01 June 2006 23:26, Dimitris Mexis wrote:
>> Exo ton parakato kodika, pistevo oti tha nai efkolo poli, se kapoion na to
>> trexi me ena gcc apla...
>> To provlima einai oti stelno loipon, mia matrix[] array stin sinartisi
>> selsort(), mou sortari tin array, pame kala, stelno meta tin matrix[]
>> array sto freq_array() kai pragmati petixeno na perno, poses times ehei
>> vrei...OMOS. Exo kolisi sto pos telika na paro mia struct(?), array(?),
>> list(? den xero kai STL ), me tis metavlites kai tin sixnotita apla pou
>> emfanizontai...diladi mia nea isos matrix, pou na leei oti telika to 1 to
>> de 1 , to 2 to vrike 3, klp klp, kai oxi 1,1,2,2,2,3,3,4 klp klp...
>> Prospatho na vgalo mia routina pou apla na mou epistrefi tin sixnotita
>> emfaniseis ton apotelesmaton tis matrix....(Me para poli apla logia)
> 
> Kati san ayto?
> 
> -----
> #include <iostream>
> #include <map>
> 
> using namespace std;
> 
> // We will need those:
> typedef map<double,int>	t_cnt;
> typedef t_cnt::iterator i_cnt;
> 
> t_cnt freq_array2(double *mtx, int elements)
> {
>  int n;
>  t_cnt ret;
>  i_cnt i;
> 
>  // For each element
>  for (n=0; n<elements; n++)
>  {
>   // If there is an existing entry
>   i=ret.find(mtx[n]);
>   if (i!=ret.end())
>    i->second++; // Increase the counter
> //   ret[mtx[n]]++; // Increase the counter
>   else
>    ret[mtx[n]]=1; // Else, set the counter to 1
>  }
> 
>  return(ret);
> }
> 
> int main()
> {
>  t_cnt cnt;
>  i_cnt i;
>  double matrix[10];
> 
>  for ( int i = 0; i < 10; i++ )
>  {
>   matrix[i] = 10 - i;
>   matrix[3] = 3; // ?
>   matrix[4] = 3; // ?
>   matrix[1] = 2; // ?
>   matrix[0] = 0; // ?
>   cout << matrix[i] << endl;
>  }
> 
>  cnt=freq_array2(matrix, 10);
> 
>  for (i=cnt.begin(); i!=cnt.end(); i++)
>   cout << i->first << ": " << i->second << endl;
> }
> 
> -----
> 
> Output:
> 
> 0
> 2
> 8
> 3
> 3
> 5
> 4
> 3
> 2
> 1
> 0: 1
> 1: 1
> 2: 2
> 3: 3
> 4: 1
> 5: 1
> 8: 1
> -----
> 
> <<V13>>

Parolo pou to lisame to thema, me poles perisoteres grammes kodika,
xeromai pou sinisfereis sto na mou deixeis, oti nai prepei na do STL!
Se efharisto.