Najprościej jak się da
#include <iostream>
using namespace std;
int main() {
cout << "Liczby dwucyfrowe" << endl;
for (int i=10; i<100; i+=10)
{
cout << i << " ";
}
cout << endl;
for (int i=11; i<100; i+=10)
{
cout << i << " ";
}
cout << endl;
for (int i=12; i<100; i+=10)
{
cout << i << " ";
}
cout << endl;
for (int i=13; i<100; i+=10)
{
cout << i << " ";
}
cout << endl;
for (int i=14; i<100; i+=10)
{
cout << i << " ";
}
cout << endl;
for (int i=15; i<100; i+=10)
{
cout << i << " ";
}
cout << endl;
for (int i=16; i<100; i+=10)
{
cout << i << " ";
}
cout << endl;
for (int i=17; i<100; i+=10)
{
cout << i << " ";
}
cout << endl;
for (int i=18; i<100; i+=10)
{
cout << i << " ";
}
cout << endl;
for (int i=19; i<100; i+=10)
{
cout << i << " ";
}
}