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#include #include using namespace std; int main() { int n,i,k=0; cin>>n; for(i=n*n;i>=1;i--) { cout

#include#includeClassQuadratic{doublea,b,c;public:Quadratic(){a=b=c=0;}Quadratic(doubleaa,Quadraticbb,doublecc);Quadraticopetator＋(Quadratic&x);Quadra

#include #include using namespace std;int main(){ int n,i,k=0; cin>>n; for(i=n*n;i>=1;i--) {cout<