C > Miscellaneous

Print character history

Print character history

#include <stdio.h>

#define ARRSIZ 127 - 33

int main(void) {
 int i, c, nc;
 float f[ARRSIZ];
 
 nc = 0;
 for(i = 0; i < ARRSIZ; i++) f[i] = 0.0;
 
 while((c = getchar()) != EOF)
  if(c >= 33 && c <= 127) 
   f[c - '!']++, nc++;
 
 for(i = 0; i < ARRSIZ; i++)
  if(f[i]) 
   printf("%c\t%.2f\n", i + '!', 100 * f[i] / nc);

 return 0;
}