#include <iostream>
using namespace std;
int A[100] = {0}, B[100] = {0}, W[100] = {0}, W2[100] = {0};
void dodaj (int k)
{
for ( int i = 1; i <= k; i++)
{
W [i+1] = ( W[i] + A[i] + B[i] ) /10;
W [i] = ( W[i] + A[i] + B[i] ) %10;
}
W[0] = k;
}
void odejmij (int k, int k1, int k2)
{
int Aod[100] = {0}, Bod[100] = {0}, i = 1, c = 0;
bool ujemna = false;
if (k1 < k2)
ujemna = true;
if (k1 == k2 && A[k1] < B[k2])
ujemna = true;
if (ujemna)
for (int j = 0; j <= k2; j++)
{
Aod[j] = B[j];
Bod[j] = A[j];
}
else
for (int j = 0; j <=k1; j++)
{
Aod[j] = A[j];
Bod[j] = B[j];
}
for (i = 0; i < k; i++)
{
if (Aod[i + 1] - Bod[i + 1] - c < 0)
{
W2[k - 1] = Aod[i + 1] + 10 - Bod[i + 1] - c;
c = 1;
}
else
{
W2[k - 1] = Aod[i + 1] - Bod[i + 1] - c;
c = 0;
}
}
if (ujemna)
W2[0] = -1;
}
int main()
{
string sliczba;
string sliczba2;
int k;
int k1;
int k2;
cin >> sliczba;
k1 = sliczba.length();
int j = 1;
for ( int i = sliczba.length()-1; i >= 0; i-- )
{
A[j] = sliczba.at (i) - '0' ;
j++;
}
cin >> sliczba2;
k2 = sliczba2.length();
if ( k1 > k2 )
k = k1;
else
k = k2;
j = 1;
for ( int i = sliczba2.length()-1; i >= 0; i-- )
{
B[j] = sliczba2.at (i) - '0';
j++;
}
dodaj(k);
odejmij(k,k1,k2);
cout << "Wynik dodawania: ";
for ( int i = W[0]; i > 0; i--)
{
cout << W[i];
}
cout << " " << endl;
cout << "Wynik odejmowania: ";
if (W2[0] !=0)
cout << '-';
for (int i = 1; i <= k; i++ )
{
cout << W2[i];
}
return 0;
}
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