#include <iostream.h>
#include <conio.h>
#include <vector.h>
int main()
{
vector <char> num1,num2,result;
cout<<"Enter tow huge integer numbers to get the sum of them.\n";
cout<<"Enter number one and press enter key.\n\n";
char ch;
while((ch=getch())!=13)
{
if(ch>='0'&& ch<='9')
{
cout.put(ch);
ch-=48;
num1.push_back(ch);
}
}
cout<<"\n+"<<endl;
while((ch=getch())!=13)
{
if(ch>='0'&& ch<='9')
{
cout.put(ch);
ch-=48;
num2.push_back(ch);
}
}
cout<<"\n="<<endl;
int min_size;
min_size = num1.size() < num2.size() ?
num1.size() : num2.size();
bool carry=0;
while(min_size>0)
{
if(num1.back()+num2.back()+carry<10)
{
result.push_back(num1.back()+num2.back()+carry);
num1.pop_back();
num2.pop_back();
carry=0;
}
else
{
result.push_back((num1.back()+num2.back()+carry)%1 0);
num1.pop_back();
num2.pop_back();
carry=1;
}
min_size--;
}
while(num1.size()!=0)
{
if(num1.back()+carry<10)
{
result.push_back(num1.back()+carry);
num1.pop_back();
carry=0;
}
else
{
result.push_back((num1.back()+carry)%10);
num1.pop_back();
carry=1;
}
}
while(num2.size()!=0)
{
if(num2.back()+carry<10)
{
result.push_back(num2.back()+carry);
num2.pop_back();
carry=0;
}
else
{
result.push_back((num2.back()+carry)%10);
num2.pop_back();
carry=1;
}
}
if(carry==1)
result.push_back(1);
while(result.size()>0)
{
cout.put(result.back()+48);
result.pop_back();
}
cout<<endl;
return 0;
}
//end
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