Code datoteka so brojki C

#include <stdio.h>
#include <string.h>
#define MAX 100

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

int main()
{
    wtf();

    // vashiot kod ovde
	FILE *a=fopen("broevi.txt","r");
    int maxbroj,broj;
    int n,max=0;
    while(1){
        fscanf(a,"%d",&n);
        if(n==0){
        break;
        }
        for(int i=0;i<n;i++){
        fscanf(a,"%d",&broj);
        int temp=broj;
            while(temp>=10){
            temp/=10;
            }
            if(temp>max){
            max=temp;
                maxbroj=broj;
            }
        }
        printf("%d\n",maxbroj);
        max=0;
    }
}