Count the digits of any input integers

Given an interger,

1) Count its digits

2) Output its every digit seperately

3) Output this integer in reverse order

Hint: Use character string to store the input interger

#include<stdio.h>int main(){ char str[100]; int i, count = 0; printf("Please input an integer:\n"); scanf("%s",str); for (i = 0; str[i]!='\0'; i++) {   count++;   printf("%c\n",str[i]); } for (i = count; i >= 0; i--) {   printf("%c",str[i]); } printf("\nThe digits of this integer is %d\n",count); return 0;}

Input:

Please input an interger:

5543654           

Output:   
5
5
4
3
6
5
4
4563455
The digits of this integer is 7