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Conversii intre 2 baze - Tema #2

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46869bf
Conversii v1
adrianagavrilut Nov 8, 2021
caa9700
Rezolvarea problemei in clasa Conversii
adrianagavrilut Nov 8, 2021
a096e1c
Detalii de implementare
adrianagavrilut Nov 8, 2021
a2942b4
Merge pull request #1 from adrianagavrilut/conversii
adrianagavrilut Nov 8, 2021
dd99d7c
Merge branch 'HoreaOros:main' into main
adrianagavrilut Nov 22, 2021
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134 changes: 134 additions & 0 deletions 10_14/10_14/Conversii.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,134 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _10_14
{
class Program
{
static void Main(string[] args)
{
Conversie();
}

private static void Conversie()
{
string n = Console.ReadLine();
int b1, b2;
b1 = int.Parse(Console.ReadLine());
b2 = int.Parse(Console.ReadLine());
if (b1 < 2 && b1 > 16 || b2 < 2 && b2 > 16)
{
Console.WriteLine("Date de intrare incorecte. Baza sursa si baza tinta trebuie sa fie in intervalul {2, 16}");
return;
}
double nBase10 = ConvertToBase10(n, b1);
string result = ConvertFromBase10(nBase10, b2);
Console.WriteLine($"{n} from base {b1} = {result} in base {b2}");
}
private static double ConvertToBase10(string n, int b1)
{
double s = 0;
int length = n.Length;
int pozPunct = n.IndexOf('.');
int exponent = length - 1;
if (pozPunct != -1)
{
exponent = pozPunct - 1;
}

for (int i = 0; i < length; i++)
{
if (n[i] == '.')
{
exponent += 1;
continue;
}
int cifra = n[i] - '0';
if (n[i] == 'a' || n[i] == 'A')
{
cifra = 10;
}
if (n[i] == 'b' || n[i] == 'B')
{
cifra = 11;
}
if (n[i] == 'c' || n[i] == 'C')
{
cifra = 12;
}
if (n[i] == 'd' || n[i] == 'D')
{
cifra = 13;
}
if (n[i] == 'e' || n[i] == 'E')
{
cifra = 14;
}
if (n[i] == 'f' || n[i] == 'F')
{
cifra = 15;
}
s = s + cifra * Math.Pow(b1, exponent - i);
}
return s;
}

private static string ConvertFromBase10(double n, int b2)
{
int pIntreaga = (int)Math.Floor(n);
double pFractionara = n - pIntreaga;

int pIntreagaCopy = pIntreaga;

Stack<int> resturi = new Stack<int>();
while (pIntreagaCopy > 0)
{
resturi.Push(pIntreagaCopy % b2);
pIntreagaCopy /= b2;
}
StringBuilder sb = new StringBuilder();
int c;
while (resturi.Count > 0)
{
c = resturi.Pop();
if (c < 10)
{
sb.Append((char)('0' + c));
}
else
{
sb.Append((char)('A' + c - 10));
}
}

StringBuilder sb2 = new StringBuilder();
Queue<int> pIntregi = new Queue<int>();
double pFractionaraCopy = pFractionara;
while (pFractionaraCopy != 0)
{
double temp = pFractionaraCopy * b2;
c = (int)Math.Floor(temp);
pIntregi.Enqueue(c);
pFractionaraCopy = temp - c;
}
sb2.Append('.');
while (pIntregi.Count > 0)
{
c = pIntregi.Dequeue();
if (c < 10)
{
sb2.Append((char)('0' + c));
}
else
{
sb2.Append((char)('A' + c - 10));
}
}

return sb.ToString() + sb2.ToString();
}
}
}
136 changes: 135 additions & 1 deletion 10_14/10_14/Program.cs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,8 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _10_14
{
Expand All @@ -9,7 +12,10 @@ static void Main(string[] args)
{
//Mijloc();

Conversie();
//Conversie();
Conversii.Conversie();
Console.WriteLine("Press any key to stop...");
Console.ReadKey();
}

/// <summary>
Expand Down Expand Up @@ -149,4 +155,132 @@ private static void Mijloc()
Console.WriteLine($"Mijlocul intervalului [{st}, {dr}] este {mij}");
}
}

class Conversii
{
public static void Conversie()
{
Console.Write("Introduceti numarul: ");
string n = Console.ReadLine();
int b1, b2;
Console.Write("Baza sursa = ");
b1 = int.Parse(Console.ReadLine());
Console.Write("Baza tinta = ");
b2 = int.Parse(Console.ReadLine());
if (b1 < 2 && b1 > 16 || b2 < 2 && b2 > 16)
{
Console.WriteLine("Date de intrare incorecte. Baza sursa si baza tinta trebuie sa fie in intervalul {2, 16}");
return;
}
double nBase10 = ConvertToBase10(n, b1);
string result = ConvertFromBase10(nBase10, b2);
Console.WriteLine($"{n} from base {b1} = {result} in base {b2}");
}
private static double ConvertToBase10(string n, int b1)
{
double s = 0;
int length = n.Length;
int pozPunct = n.IndexOf('.');
int exponent = length - 1;
if (pozPunct != -1)
{
exponent = pozPunct - 1;
}

for (int i = 0; i < length; i++)
{
if (n[i] == '.')
{
exponent += 1;
continue;
}
int cifra = n[i] - '0';
if (n[i] == 'a' || n[i] == 'A')
{
cifra = 10;
}
if (n[i] == 'b' || n[i] == 'B')
{
cifra = 11;
}
if (n[i] == 'c' || n[i] == 'C')
{
cifra = 12;
}
if (n[i] == 'd' || n[i] == 'D')
{
cifra = 13;
}
if (n[i] == 'e' || n[i] == 'E')
{
cifra = 14;
}
if (n[i] == 'f' || n[i] == 'F')
{
cifra = 15;
}
s = s + cifra * Math.Pow(b1, exponent - i);
}
return s;
}

private static string ConvertFromBase10(double n, int b2)
{
int pIntreaga = (int)Math.Floor(n);
double pFractionara = n - pIntreaga;

int pIntreagaCopy = pIntreaga;

Stack<int> resturi = new Stack<int>();
while (pIntreagaCopy > 0)
{
resturi.Push(pIntreagaCopy % b2);
pIntreagaCopy /= b2;
}
StringBuilder sb = new StringBuilder();
int c;
while (resturi.Count > 0)
{
c = resturi.Pop();
if (c < 10)
{
sb.Append((char)('0' + c));
}
else
{
sb.Append((char)('A' + c - 10));
}
}

StringBuilder sb2 = new StringBuilder();
Queue<int> pIntregi = new Queue<int>();
double pFractionaraCopy = pFractionara;
while (pFractionaraCopy != 0)
{
double temp = pFractionaraCopy * b2;
c = (int)Math.Floor(temp);
pIntregi.Enqueue(c);
pFractionaraCopy = temp - c;
}
sb2.Append('.');
while (pIntregi.Count > 0)
{
c = pIntregi.Dequeue();
if (c < 10)
{
sb2.Append((char)('0' + c));
}
else
{
sb2.Append((char)('A' + c - 10));
}
}

if(sb2.ToString() == ".")
{
return sb.ToString();
}
return sb.ToString() + sb2.ToString();
}
}
}