Tích 2 ma trận

#include<iostream>
using namespace std;
void nhapmt(int a[50][50],int hang,int cot)
{
int i,j;
for(i=0;i<hang;i++)
for(j=0;j<cot;j++)
{
cout<<"a["<<i<<"]["<<j<<"]=";
cin>>a[j];
}
}
void xuatmt(int a[50][50],int hang,int cot)
{
int i,j;
for(i=0;i<hang;i++)
{
for(j=0;j<cot;j++)
cout<<a[j]<<" ";
cout<<"\n";
}
}

void main()
{
int a[50][50];
int b[50][50];
int c[50][50];
int hang1,hang2,cot1,cot2;
cout<<"ma tran a"<<endl;
cout<<"nhap so hang: ";cin>>hang1;
cout<<"nhap so cot: ";cin>>cot1;
nhapmt(a,hang1,cot1);
cout<<"ma tran b"<<endl;
do
{
cout<<"nhap so hang: ";
cin>>hang2;
}
while(cot1!=hang2);

cout<<"nhap so cot: ";cin>>cot2;
nhapmt(b,hang2,cot2);
cout<<"ma tran a la: "<<endl;
xuatmt(a,hang1,cot1);
cout<<"ma tran b la: "<<endl;
xuatmt(b,hang2,cot2);
cout<<"ma tran tich la: "<<endl;
int i,j,k;
for(i=0;i<hang1;i++)
for(j=0;j<cot2;j++)
{
c[j]=0;
for(k=0;k<cot1;k++)
c[j]+=a[k]*b[k][j];
}
xuatmt(c,hang1,cot2);
}

anh em ai đọc bài xong nhớ thanks chủ topic để họ có khí thế post bài tiếp nha k: