Victor Surozhtsev
Просветленный
(33722)
4 года назад
#include "iostream"
using namespace std; int main()
{ double a,b; for (;;) { cout << "a b > ";
cin >> a >> b; if (a==0) if (b < 0) cout <<
"xє(-∞;+∞)\n"; else cout << "xє∅\n"; else if (a > 0) cout << "xє(-∞;" << -b/a << ")\n"; else cout << "xє(" << -b/a << ";+∞)\n"; } }