Answer:
#include <stdio.h>
void spaces(int n) {
for(int i=0; i<n; i++) {
putchar(' ');
}
}
void numbersdown(int n) {
for(int i=n; i>1; i--) {
putchar('0'+i);
}
}
void numbersup(int n) {
for(int i=1; i<=n; i++) {
putchar('0'+i);
}
putchar('\n');
}
int main(void) {
int number;
printf("Please enter a digit: ");
scanf("%d", &number);
for(int i=number; i>0; i--)
{
spaces(number-i);
numbersdown(i);
numbersup(i);
}
}
Explanation:
I deliberately separated the solution into different functions for readability. If needed, the code could be made much more compact.
