CodePudding user response:

 
# define INT_SIZE 10 

The class Integer 
{
Public: 
Integer (void) 
{
OF_10=100000000; 
OF_16=62500000; 
InputBuffSize=10 * INT_SIZE + 1; 
InputBuff=new char [inputBuffSize]; 
Memset (num, 0, sizeof (unsigned int) * INT_SIZE); 
} 

Bool Assign10 (char const * who) 
{
//check valid 
For (char const * input=who; * input!=0; + + input) 
{
For (int I=INT_SIZE - 1; I & gt;=0; - I) 
{
If (num [I] & gt;=OF_10 & amp; & I + I & lt; INT_SIZE) 
{
Unsigned int bit=num [I]/OF_10; 
Num [I] -=bit * OF_10; 
Num [I + 1) +=bit; 
} 

Num [I] *=10; 
} 

If (' 0 '& lt;=* input & amp; & * input & lt;='9') 
{
Num [0] +=* input - '0'; 
continue; 
} 

Memset (num, 0, sizeof (unsigned int) * INT_SIZE); 
return false; 
} 

return true; 
} 

Bool Assign16 (char const * who) 
{
//check valid 
For (char const * input=who; * input!=0; + + input) 
{
For (int I=INT_SIZE - 1; I & gt;=0; - I) 
{
If (num [I] & gt;=OF_16 & amp; & I + I & lt; INT_SIZE) 
{
Unsigned int bit=num [I]/OF_16; 
Num [I] -=bit * OF_16; 
Num [I + 1) +=bit; 
} 

Num [I] *=16; 
} 

If (' 0 '& lt;=* input & amp; & * input & lt;='9') 
{
Num [0] +=* input - '0'; 
continue; 
} 

If (' a '& lt;=* input & amp; & * input & lt; ) 
='f'{
Num [0] +=10 + x input - 'a'; 
continue; 
} 

If (' A '& lt;=* input & amp; & * input & lt; ) 
='F'{
Num [0] +=10 + x input - 'A'; 
continue; 
} 

Memset (num, 0, sizeof (unsigned int) * INT_SIZE); 
return false; 
} 


return true; 
} 

Void Scan10 (void) 
{
Assign10 (gets_s (inputBuff inputBuffSize)); 
} 

Void Scan16 (void) 
{
Assign16 (gets_s (inputBuff inputBuffSize)); 
} 

Void Print (void) 
{
Bool output=false; 
For (int I=INT_SIZE - 1; I & gt;=0; - I) 
{
If (the output) 
{
Printf (" %. 9 d, "num [I]); 
} 
Else if (num [I]!=0) 
{
The output=true; 
Printf (" % d ", num [I]); 
} 
} 

if (! The output) 
{
Printf (" 0 "); 
} 

printf("\r\n"); 
} 

Private: 
Unsigned int OF_10; 
Unsigned int OF_16; 
Int inputBuffSize; 
Char * inputBuff; 
Unsigned int num [INT_SIZE]; 
}; 

Int main () 
{
Integer (I); 
I. can16 (); 
I.P rint (); 

system("pause"); 

return 0; 
}