C Programming
Ask user to enter a random number between 1 and 100. Then ask how many numbers he wants to display that precedes first number he enters.
Let’s say if user enter 9 and wants 3 numbers that precedes 9, your program should display this: • 6 7 8 9
Have no idea need some help.
For asking the user a question, you can use something like printf or puts.
To request numbers from the user, scanf is probably the best approach for the level you're working at.
By way of example, here's a complete program that asks the user for a number then gives them the next number:
#include <stdio.h>
int main (void) {
int num;
printf ("Enter a number: ");
if (scanf ("%d", &num) != 1) {
puts ("That wasn't a valid number");
return 1;
}
printf ("The next number is %d\n", num + 1);
return 0;
}
Analysing that code, and what it does when it runs, should be enough to get you started.
For your specific project, the following pseudo-code should help:
print "Enter the ending number: "
input endnum
print "Enter the count of preceding numbers: "
input count
num = endnum - count
do:
print num
num = num + 1
while num <= endnum
That's the algorithm you can use, I won't provide it as C code since you'll become a better coder if you do that yourself. In any case, those pseudo-code lines all pretty much have a one-to-one mapping with C statements so it should be relatively easy to get something going.
