For the days of the week, I'd suggest a small array:
Code:
char days={"", "Sunday","Monday","Tuesday", "Wednesday", "Thursday","Friday","Saturday"};
and now you can easily remember and use the number of the day of the week, inside your program:
Code:
for(i=1;i<8;i++)
printf("\n %9s",days[i]);
printf("/n ");
for(i=0;i<70;i++)
putchar('=');
You need the strings printed out inside a fixed field, to easily "mark up" your schedule. I believe 9 for the string, and one for the space, is about right, since it's an easy 10 char wide, in total.
So if I want to mark something in Tuesday's column, I know that column starts at (10 * 3).
If you want something with more columns, you may want to use the days 3 letter abbreviation, instead of the full day's word.