5assignment.cpp

#include<iostream>
using namespace std;
int main() {
   int z[2][2];
   int i, j;
   int m1, m2, m3, m4 , m5, m6, m7;
      int x[2][2] = {
         {12, 34}, 
         {22, 10}
      };
   int y[2][2] = {
      {3, 4}, 
      {2, 1}
   };
   cout<<"The first matrix is: ";
   for(i = 0; i < 2; i++) {
      cout<<endl;
      for(j = 0; j < 2; j++)
         cout<<x[i][j]<<" ";
   }
   cout<<"\nThe second matrix is: ";
   for(i = 0;i < 2; i++){
      cout<<endl;
      for(j = 0;j < 2; j++)
         cout<<y[i][j]<<" ";
   }

   m1 = (x[0][0] + x[1][1]) * (y[0][0] + y[1][1]);
   m2 = (x[1][0] + x[1][1]) * y[0][0];
   m3 = x[0][0] * (y[0][1] - y[1][1]);
   m4 = x[1][1] * (y[1][0] - y[0][0]);
   m5 = (x[0][0] + x[0][1]) * y[1][1];
   m6 = (x[1][0] - x[0][0]) * (y[0][0]+y[0][1]);
   m7 = (x[0][1] - x[1][1]) * (y[1][0]+y[1][1]);

   z[0][0] = m1 + m4- m5 + m7;
   z[0][1] = m3 + m5;
   z[1][0] = m2 + m4;
   z[1][1] = m1 - m2 + m3 + m6;

   cout<<"\nProduct achieved using Strassen's algorithm: ";
   for(i = 0; i < 2 ; i++) {
      cout<<endl;
      for(j = 0; j < 2; j++)
         cout<<z[i][j]<<" ";
   }
   return 0;
}