mt.cpp

examples C,c++ codes programs

#include<iostream.h>
#include<conio.h>
#include<iomanip.h>


void nhapmt( int a[10][10], int d, int c, char s)
{
int i,j;
cout<<"Nhap gia tri cac phan tu ma tran "<<s<<endl;
for(i=0;i<d;i++)
for(j=0;j<c;j++)
{
cout<<"a["<<i+1<<"]["<<j+1<<"] = ";
cin>>a[i][j];
cout<<"\n";
}
}

void xuatmt(int a[10][10], int d, int c, char s)
{
int i,j;
cout<<"\nMa tran "<<s<<" :\n";
for(i=0;i<d;i++)
{
cout<<"\n";
for(j=0;j<c;j++)
cout<<setw(5)<<a[i][j];
}
}

void main()
{
int a[10][10],b[10][10],m,n,k,i,j,l,c[10][10];
do
{
cout<<"\nnhap so dong ma tran a : ";
cin>>m;
}
while (m<2||m>10);
cout<<"\nnhap so cot    ma tran a : "; cin>>n;
cout<<"\nnhap so dong ma tran b : "; cin>>k;



nhapmt(a,m,n,'a');           /* tich a[m][n] va b[n][k]*/
nhapmt(b,n,k,'b');
xuatmt(a,m,n,'a');
xuatmt(b,n,k,'b');

for (i=0; i<m; i++)
    for (j=0; j<k; j++)
    {
      c[i][j] = 0;
      for (l=0; l<n; l++)
	c[i][j] += a[i][l] * b[l][j];
    }

cout<<"\nma tran tich:\n";
xuatmt(c,m,k,'c');
getch();
}