1. WAP for digital clock. #include<conio.h> #include<iostream.h> #include<dos.h> void main() { int s=0,m=0,h=0,i; clrscr(); for(i=1;i<=3600;i++) { s++; if(s==60) { m++; s=0; } if(m==60) { h++; m=0; } textbackground(WHITE); textcolor(YELLOW); delay(5); clrscr(); cprintf("%d::%d::%d",h,m,s) ; } getch(); } 2. WAP for matrix multiplication. #include<conio.h> #include<iostream.h> void main() { int a[3][3],b[3][3],c[3][3],i,j,k; clrscr(); cout<<"Enter The 9 number of Matrix a:\n"; for(i=0;i<=2;i++) { for(j=0;j<=2;j++) { cin>>a[i][j]; } } cout<<"Enter The 9 number of Matrix b:\n"; for(i=0;i<=2;i++) { for(j=0;j<=2;j++) { cin