UVa 11687 Digits Solution

#include <cstdio>
#include <cstring>
char digits(unsigned int x){
 register char ret = 0;
 while(x) x/=10, ret++;
 return ret;
}
int main(void){
 register char c;
 unsigned int cnt;
 bool mark;
 while((c = getc( stdin )) != 'E'){
  cnt = mark = 1;
  if(c == '1') mark = 0;
  while((c = getc( stdin )) != '\n') cnt++;
  if(cnt == 1) printf("%d\n",cnt+mark);
  else if(cnt < 10) printf("%d\n",3);
  else printf("%d\n",4);
 }
 return 0;
}