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//program to initialize 3x3 matrix and display both the diagonals #include<iostream.h> #include<conio.h> void main() { clrscr(); int a[3][3]={ 2,4,5, 67,78,90, 12,23,45 }; int i,j; cout<<"displaying the matrix \n"; for(i=0;i<3;i++) { for(j=0;j<3;j++) { cout<<a[i][j]<<"\t"; } cout<<"\n"; } cout<<"\ndisplaying diagonal 1 \n"; for(i=0;i<3;i++) { for(j=0;j<3;j++) { if(i==j) { cout<<a[i][j]<<"\n"; } } } cout<<"\ndisplaying diagonal 2 \n"; for(i=0;i<3;i++) { for(j=0;j<3;j++) { if(i+j==2) { cout<<a[i][j]<<"\n"; } } } getch(); }