自由手記

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#include <stdlib.h>
#include "stdafx.h"
#include "iostream"
using namespace std;


int _tmain(int argc, _TCHAR* argv[])
{
int a=0,b=0,c=0;
int ** Matrix1,** Matrix2,** Matrix3;
cout<<"請輸入a、b、c建立a*b與b*c矩陣"<<endl;
cin>>a;
cin>>b;
cin>>c;
cin.get();
cout<<"a*b等於"<<endl;
Matrix1= new int*[a];
for(int i=0;i<a;i++){
   Matrix1[i]=new int[b];
   for(int j=0;j<b;j++){
    Matrix1[i][j]=rand() % 10+1;
   cout<<   Matrix1[i][j]<<"  " ;
   }
  cout<<endl;
}
cout<<"b*c等於"<<endl;
Matrix2= new int*[b];
for(int i=0;i<b;i++){
   Matrix2[i]=new int[c];
   for(int j=0;j<c;j++){
    Matrix2[i][j]=rand() % 10+1;
   cout<<   Matrix2[i][j]<<"  " ;
   }
  cout<<endl;
}
cout<< "_____"<<endl;
Matrix3= new int*[a];
for(int i=0;i<a;i++){
   Matrix3[i]=new int[c];
   for(int j=0;j<c;j++){
   int sun=0;
   for(int i0=0;i0<b;i0++){
    sun=sun+(Matrix1[i][i0]*Matrix2[i0][j]); 
   }
   Matrix3[i][j]=sun;
   cout<<   Matrix3[i][j]<<"  " ;
   }
  cout<<endl;
}
 return 0;
}