Thread: Is there a way to separate whole int to a single digit???

for example i got int of 15569542 and i wan to separate them to single digit like
1
5
5
6
9
5
4
2
please help and thank for ur help

1) Compute int%10 (modulo 10). Store the result (last digit) in some array.
2) Divide int by 10.
3) Repeat

Well yes, but that assumes that you know how many digits there are in advance. A more general way would be:

Code:

int asd = 98321, k[5], i =0;
while(asd > 0){
  k[i++] = asd % 10;
  asd = asd/10;
}

/* To print the asd digits in the right order you must print k[] in reverse */
int j;
for(j = i-1;j >= 0;j--){
 printf("%d",k[j]);
}

I haven't tested this but it's something along these lines.

i think i got it. thank for ur help =D

You're welcome.

Here's an alternate way ....

Code:

#include <stdio.h>

#define MAX             999999
#define str(x)          # x
#define xstr(x)         str(x)

int main(void)
{
  int d;
  char array[sizeof xstr(MAX)];

  fputs("Enter an integer from 0 to " xstr(MAX) ": ", stdout);
  fflush(stdout);
  if (fscanf(stdin, "%d", &d) == 1 && d >= 0 && MAX >= d) {
    sprintf(array, "%d", d);
    for (d = 0; array[d] != '\0'; ++d) {
      printf("%c\n", array[d]);
    }
  } else {
    puts("Try again.");
  }
  return 0;

}

$ gcc -Wall -Wextra alt.c -o alt
[cd@localhost oakland]$ ./alt
Enter an integer from 0 to 999999: 923451
9
2
3
4
5
1
[cd@localhost oakland]$