Finding frequency of characters in a string using C

#include<stdio.h>
main()
{
char c[10],ch;
int i,count=0;
printf("Enter a string: ");
gets(c);
printf("Enter a characeter to find frequency: ");
scanf("%c",&ch);
for(i=0;c[i]!='\0';++i)
{
if(ch==c[i])
++count;
}
printf("Frequency of %c = %d", ch, count);
}