Ce am gresit? #3 c++

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G3ner1c
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07 Nov 2013, 21:35

#include<iostream>
#include<math.h>
using namespace std;
int main()
{
int a,b,c;
float d,x1,x2,x;
cout<<"a= ";cin>>a;
cout<<"b= ";cin>>b;
cout<<"c= ";cin>>c;
d=b*b-4*a*c;
Switch(d)
{
case d==0:
x=-b\2*a;
cout<<"x= "<<x;break;
case d<0:
cout<<"Solutia e nr complex fraiere";break;
default:x1=(-b+(sqrt(d)))/2*a; x2=(-b-(sqrt(d)))/2*a;
cout<<"x1= "<<x1;
cout<<"x2= "<<x2;
}
}

vreau sa rezolv o ecuatie de gradu 3 folosind case. :-? Ce am gresit?
Last edited by G3ner1c on 08 Nov 2013, 23:17, edited 2 times in total.
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IsTI37
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07 Nov 2013, 21:42

return main(); sau main(); la sfarsit daca imi amintesc bine...
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GPaul
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07 Nov 2013, 21:44

O posibila varianta ar fi sa pui totul intr-un loop pana introduci zero.

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do {
         switch() {}
     }
}while(n!=0)
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G3ner1c
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07 Nov 2013, 21:56

IsTI37 wrote:return main(); sau main(); la sfarsit daca imi amintesc bine...
return main(); ms frumos, e o idee buna si cu loop-ul :D
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08 Nov 2013, 20:36

Astea ce fel de date definesc?

long n;
char n;
double n;
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08 Nov 2013, 20:52

double - ii o variabila, stiu de la java.
char - un character, un cuvant parca tot de la java stiu asta. cred ca char ii tot un fel de variabila
long - nu stiu..
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08 Nov 2013, 22:14

max short = 2^15 - 1 = 32767
max unsigned short = 2^16 - 1 = 65535
max int = 2^31 - 1 = 2147483647
max unsigned int = 2^32 - 1 = 4294967295
max float = 2^(2^7) = 3.4 x 10^38
max double = 2^(2^10) = 1.798 x 10^308
si char e legat de caractere de tip litere.
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08 Nov 2013, 23:28

G3ner1c wrote:Astea ce fel de date definesc?

long n;
char n;
double n;
http://www.cplusplus.com/doc/tutorial/variables/ - le gasesti pe toate aici.
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08 Nov 2013, 23:32

ok, ms am inteles, dar rezolvarea la problema aia care este? b-(
Sunt mereu stramb, prea multi indivizi pe coiul meu stang, te crezi destept, poti sa treci pe coiul meu drept. -VD.
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