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Old 10-01-2008, 14:06   #1 (permalink)
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Join Date: Jan 2007
Doua probleme C...

Salutare,

Am si eu nevoie de o rezolvare pentru doua probleme in C. Ma poate ajuta cineva?

1. Sa se contorizeze numarul de aparitii ale unui caracter dat intr-o matrice de caractere.
2. Sa se calculeze cu ajutorul functiilor media, dispersia si coeficientul de variatie al unei serii statistice de volum N.

Dau o bere pentru cine ma poate ajuta

Multumesc!
 
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Old 12-01-2008, 00:54   #2 (permalink)
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Join Date: Oct 2004
Location: in cimitir, pe stanga.
Oh, da ...

[code]#include <iostream>
#include <string>
// Edit: :P obisnuinta isi spune cuvantul.
using namespace std;

int main (void) {
string aStr = "Baca aici tot textul de care ai nevoie. Poti initializa string-ul dupa pofta inimii, fie asa, fie folosind un for cu index-ul de string sau ce altceva vor muschii tai.";
const char* caracter = 'c';

int counter = 0;
for (register int i = 0; i < aStr.length (); i++) {
if (aStr[i] == caracter) {
counter += 1;
}
}
cout << counter << endl;
}
[/code]Tipurile ti le definesti tu cum vrei, functie de marimea matricei. <string> e compatibil intr-o comparatie cu const char* daca nu ma inseala memoria. In cel mai rau caz, poti declara const char* tot ca un <string> dar il initializezi cu un singur caracter si atunci nu mai ai nici o problema.

Hai bafta. Sanatate si numa bine. Vreau un Tuborg daca nu te superi. Iti fac si a doua problema, dar da-mi algoritmul matematic si-l pot transpune.
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