Question

After a group of numbers for example 1, 2, 3, 4, 5. how would I go about getting the last number to printf with a period? Also the length of the numbers will change. For example there might be a 6 after the five or a 7 after the 5 and 6. Without using backslashes

Answer 1

#include <stdio.h>
int main(){
   int n;
   printf("How many numbers to print? ");
   scanf("%d", &n);
   for(int i = 1; i <= n; i++){
       if(i != 1)
           printf(", ");
       printf("%d", i);
   }
   printf(".");
   printf("\n");
}