enkov

Преобразуване от произволна в десетична бройна система

Nov 14th, 2016
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C++ 0.67 KB | None | 0 0
  1. #include <iostream>
  2. #include <cstring>
  3. #include <cmath>
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     int chislo, sistema, n;
  9.     char cifri[25];
  10.    
  11.     cout << "Osnova = ";
  12.     cin >> sistema;
  13.  
  14.     cout << "Chislo v osnova " << sistema << " = ";
  15.     cin >> cifri;
  16.  
  17.     int cifra;
  18.  
  19.     n = 0; chislo = 0;
  20.     while (n < strlen(cifri))
  21.     {
  22.         if (cifri[strlen(cifri) - n-1] >= 'A')
  23.             cifra = int(cifri[strlen(cifri) - n-1]) - 'A' + 10;
  24.         else cifra = int(cifri[strlen(cifri) - n-1]) - '0' ;
  25.         cout << cifri[strlen(cifri) - n-1] << "-" << cifra << " ";
  26.         chislo = chislo + cifra * int(pow(sistema,n));
  27.         n = n + 1;
  28.     }
  29.     cout << endl;
  30.          cout << "Chisloto e " << chislo << endl;
  31.  
  32.     return 0;
  33. }
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