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//program to initialize a 3x3 matrix and find sum of elements in rows and sum of elements in columns #include<iostream.h> #include<conio.h> void main() { clrscr(); int a[3][3]={ 1,1,1, 2,2,2, 3,3,3 }; int i,j; int rowsum[3]={0,0,0}; int colsum[3]={0,0,0}; cout<<"\ndisplaying the matrix \n"; for(i=0;i<3;i++) { for(j=0;j<3;j++) { cout<<a[i][j]<<"\t"; } cout<<"\n"; } for(i=0;i<3;i++) { for(j=0;j<3;j++) { rowsum[i]=rowsum[i]+a[i][j]; } } for(i=0;i<3;i++) { for(j=0;j<3;j++) { colsum[i]=colsum[i]+a[j][i]; } } cout<<"\ndisplaying the column sum \n"; for(i=0;i<3;i++) { cout<<"sum of column "<<i+1<<" : "<<colsum[i]<<"\n"; } cout<<"\ndisplaying the row sum \n"; for(i=0;i<3;i++) { cout<<"sum of row "<<i+1<<" : "<<rowsum[i]<<"\n"; } getch(); }