#include <string.h> #include <stdio.h> int main() { char a[]="123abc"; int i, num=0; for(i=0;_______;i++) if(a[i]>='a'&&a[i]<='z') num++; printf("%d\n",num); return 0; }
a[i]!='\0'
a[i]==0
a[i]=='\0'
a[i]!=0
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