Ví dụ
#include #include void main() { int i,j,a=0,b=1,n; clrscr(); printf("****************OUTPUT*****************\n\n"); printf("enter the value of n : "); scanf("%d",&n); printf("\n the required order is: \n\n" ); for(i=1;i<=n;i++) { if(i==1) printf("%d. E",i); else { printf("%d. ",i); for(j=1;j<=i-1;j++) printf("%d",a); for(j=1;j<=i-1;j++) printf("%d",b); } printf("\n"); } getch(); }