IN C

create a code that read a file and finds the frequency that the letters are repeated and store the data in any useful data struc

short example

a v d asd

a= 2

v =1

d=2

s=1

file has KSJBNCYLIEKJBAZWBATVKYIPSBQRLKATVKPBNOLRBAIGKNVATVRWNVRQNCBQICCBQRLKARLTVTVOBTPO