Программирование на C / C++ / Лабораторная работа №11 / #1

#include<conio.h>
#include<stdio.h>
#include<stdlib.h>
const n=3;
int e[n][n],f[n][n],g[n][n];

int a[n][n]={{1,2,3},{4,5,6},{7,8,9}};
int b[n][n]={{1,0,1},{0,1,0},{0,0,1}};
int c[n][n]={{0,0,1},{0,1,0},{1,0,1}};
int d[n][n]={{0,5,1},{2,1,0},{1,4,1}};


void multiple(int a1[n][n],int b1[n][n], int c1[n][n]){
int i,j;
for ( i=0;i<n;i++)
   for ( j=0;j<n;j++)
     c1[i][j]=0;
for ( i=0;i<n;i++)
   for ( j=0;j<n;j++)
	for (int k=0;k<n;k++)
		c1[i][j]+=a1[i][k]*b1[k][j];
}

void add(int a1[n][n],int b1[n][n], int c1[n][n])
{
for (int i=0;i<n;i++)
      for (int j=0;j<n;j++)
	   c1[i][j]=a1[i][j]+b1[i][j];
}

void printm(int a[n][n]){
for (int i=0;i<n;i++)
  {
   for (int j=0;j<n;j++)
   printf("%2i ",a[i][j]);
   printf("\n");
  }
printf("\n");
getch();
}

void main()
{
clrscr();
multiple(a,b,e);
multiple(c,d,f);
add(e,f,g);
printf("matrix A:\n");
printm(a);
printf("matrix B:\n");
printm(b);
printf("matrix A*B:\n");
printm(e);
printf("matrix C:\n");
printm(c);
printf("matrix D:\n");
printm(d);
printf("matrix C*D:\n");
printm(f);
printf("matrix E=A*B+C*D:\n");
printm(g);
}