count letter in string
#include<stdio.h>
#include<string.h>
int main() {
char c;
char s[100];
scanf("%c", &c);
scanf("%s", s);
int count = 0;
int len = strlen(s);
for (int i = 0; i < len; i++) {
if (s[i] == c) {
count++;
}
}
printf("%d", count);
return 0;
}count characters in string
# count characters iterative
def count_chars(s)
count = Hash.new(0)
s.split("").each do |x|
count[x] += 1
end
count
end
# count characters functional
s.chars.map {|c| [c, s.chars.count(c)] }.to_hCopyright © 2021 Codeinu
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