Datoteki

Zborovi so najmalku 2 cifri i 3 bukvi

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX 100
int main()
{   FILE *f=fopen("input.txt","r");
    FILE *k=fopen("output.txt","w");
    int cifri=0,bukvi=0,n,i,zborovi;
    char red[MAX];
        while(fgets(red,MAX,f))
        {
            n=strlen(red);
            i=0;
                while(i<n)
                {
                    if(isalnum(red[i]))
                    {
                        if(isdigit(red[i]))
                        {
                            cifri++;
                        }
                        if(isalpha(red[i]))
                        {
                            bukvi++;
                        }
                    }
                }
                if(cifri>=2&&bukvi>=3)
                {
                    zborovi++;
                }
                else
                {
                    //cifri=0;
                    //bukvi=0;
                    zborovi=0;
                }
                cifri=0;
                bukvi=0;
                if(zborovi>0)
                {
                    printf("%s",red);
                }
        }


Broj na samoglaski
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX 100
int main()
{   FILE *f=fopen("input.txt","r");

    int i,n,samoglaski=0,max=-999;
    char red[MAX],zbor[MAX];
        while(fgets(red,MAX,f))
        {
            n=strlen(red);
            i=0;
                while(i<n)
                {
                    if(red[i]=='a'||red[i]=='e'||red[i]=='u'||red[i]=='i'||red[i]=='o')
                    {
                        samoglaski++;
                    }
                    i++;
                }
                if(max<samoglaski)
                {
                    max=samoglaski;
                    strcpy(zbor,red);
                }
        }
        fprintf("%s",zbor);
    return 0;
}

Broj na zborovi koi imaat poveke od 2 cifri

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#define MAX 100
int main()
{
    FILE *f=fopen("input.txt","r");
    FILE *k=fopen("output.txt","w");
    char red[MAX];
    char c;
    int a, b,i;

    while (fgets(red,MAX,f)!=NULL)
    {

        int counter2=0;
        int counter=0;
        for(i=0;i<strlen(red);i++){

            if(isalnum(red[i]))
        {
            if(isdigit(red[i]))
            counter++;
            //printf("%d ",counter);
        }
            else{
                 if(counter<=2)
            {
                counter=0;
                continue;
            }
            else{
                counter2++;
                counter=0;
                //printf("%d ", counter2);
            }
           }
        }
               fprintf(k,"%d %s",counter2,red);
               //printf("%d ", counter2);
               counter2=0;
    }
    fclose(f);
    fclose (k);
    return 0;
}