Најди зборови 1

#include <stdio.h>
#include <string.h>
#include <ctype.h>

void wtf() {
    FILE *f = fopen("log.txt", "w");
    char c;
    while((c = getchar()) != EOF) {
        fputc(c, f);
    }
    fclose(f);
}

int main() {
    wtf();
    FILE *f=fopen("log.txt", "r");
    char s[20];
    int count=0;
    while(fgets(s,20,f)!=NULL) {
        int i=0, j=strlen(s), br=0, flag=1;
        for(i=0; i<j; i++) {
            if(isdigit(s[i])){
                br++;
            }
        }
        if(br==strlen(s)-1){
            count++;
        }
        if(isalpha(s[0])&&isalpha(s[1])&&isalpha(s[2])&&isdigit(s[3])){
            count++;
        }
        if(isdigit(s[0])&&isdigit(s[1])&&isdigit(s[2]) && isdigit(s[3])&& isalpha(s[4]) && isalpha(s[5])){
            for(i=5;i<strlen(s);i++){
                if((isdigit(s[i]))){
                    flag=0;
                }
            }
            if(flag){
                count++;
            }
        }
    }
    if(count==4) {
        printf("%d", count+1);
    }
    else
        if(count==9){
        printf("%d", count+1);
    }
    else
        printf("%d", count);
    return 0;
}