Distributed System MCA last year question paper

Hi guyz this is solved question paper of MCA fifth semester as per RGPV syllabus:

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C++ Program to multiply two matrix.

#include<iostream.h> #include<conio.h> void main() {clrscr(); int i,j,k,m1,n1,m2,n2,a[20][20],b[20][20],c[20][20]; cout<<"enter rows and columns of matrix 1"; cin>>r1>>c1; cout<<"\n enter rows and columns of matrix 2"; cin>>r2>>c2; if(n1==m2)                                                             { cout<<"Enter  first matrix "; for(i=0;i<r1;i++)  for(j=0;j<c1;j++)    cin>>a[i][j]; cout<<"\n Enter second matrix"; for(i=0;i<m2;i++)  for(j=0;j<n2;j++)    cin>>b[i][j]; for(i=0;i<r2;i++) {  for(j=0;j<c2;j++)   {c[i][j]=0;    for(k=0;k<c1;k++)     {c[i][j]+=a[i][k]*b[k][j];}                           //remember this      }      } for(i=0;i<m1;i++)  {for(j=0;j<n2;j++)   cout<<c[i][j]<<" ";   cout<<"\n";   }   }   else   cout<<"\n sorry wrong entry  ABORTING!!!!";
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