코스프로 2번
C
#include <stdio.h>
#include <string.h>
int main() {
int count=0;
char arr[100];
scanf("%s",arr);
for(int i=0;i<strlen(arr);i++){
if(arr[i]>='a'&& arr[i]<='z'){
count++;
}
}
printf("%d",count);
}
Output
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