... main(){ set<float ,100 > a; set<float ,100 > c; set<float ,100 > d; set<float ,100 > e; set<float ,100 > f; set<sv ,100 > g; set<phanso ,100 > b; int n,m,l; ... a[] [10] ,int hang,int cot); void main() { system("color 3e"); float a [10] [10] ,b [10] [10] ,c [10] [10] ; int hang1,cot1; cout<<"Moi ban nhap vao ma tran a: \n"; cout<<"Nhap ... void congmt(float a[] [10] ,float b[] [10] ,float c[] [10] ,int hang,int cot); void nhapmt(float a[] [10] ,int hang,int cot); void inmt(float a[] [10] ,int hang,int cot); void main() {...