Доскональное решение, пожалуйста?

define _CRT_SECURE_NO_WARNINGS

include lt;iostreamgt;

include lt;vectorgt;

include lt;algorithmgt;

include lt;utilitygt;

include lt;setgt;

include lt;cmathgt;

using namespace std;

int pow(int a) return a * a;

signed main()

   setlocale(0, "RUS");

   vector lt;intgt; trangle(3);

   for (int i = 0; i lt; 3; ++i) cin gt;gt; trangle[i];

   sort(trangle.begin(), trangle.end());

   if (pow(trangle[2]) == pow(trangle[1]) + pow(trangle[0]))

       cout lt;lt; "Прямоугольный";

   else if (pow(trangle[2]) gt; pow(trangle[1]) + pow(trangle[0]))

       cout lt;lt; "Тупоугольный";

   else

       cout lt;lt; "Остроугольный";

---

define _CRT_SECURE_NO_WARNINGS

include lt;iostreamgt;

include lt;vectorgt;

include lt;algorithmgt;

include lt;utilitygt;

include lt;setgt;

include lt;cmathgt;

using namespace std;

int pow(int a) return a * a;

signed main()

   setlocale(0, "RUS");

   int x, y;

   cin gt;gt; x gt;gt; y;

   if (x gt; 0 amp;amp; y gt; 0) cout lt;lt; "I четверть";

   else if (x gt; 0 amp;amp; y lt; 0) cout lt;lt; "II четверть";

   else if (x lt; 0 amp;amp; y lt; 0) cout lt;lt; "III четверть";

   else cout lt;lt; "IV четверть";