plagijat

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

void writeToFile() {
    FILE *f = fopen("dat.txt", "w");
    char c;
    while((c = getchar()) != '#') {
        fputc(c, f);
    }
    fclose(f);
}

int petbukvi( char * red ){
    int count = 0;

    while ( *red ){
        if (isalpha(*red)){
            count++;
        }
        if ( count > 4 ){
            return 1;
            red++;
        }
    }

    return 0;
}

void printRow ( char * red, int first, int last ){

    for ( int i = first; i <= last; i++ ){
        if ( i == first ){
            printf("%c", toupper(red[i]));
        }
        else if ( i == last ){
            printf("%c", tolower(red[i]));
        }
        else{
            printf("%c", red[i]);
        }

    }
}

void najdiPrvPosleden( char *red ){

    int flag=0, i=0, first, last;

    if (isalpha(red[i])&&flag == 0){
        first = i;
        flag = 1;
    }
    else if ( isalpha(red[i])&&flag ){
        last=i;
    }
    i++;

}

int main () {

    writeToFile();

    char red[100], maxRed[100];
    int max=100;

    FILE * file;
    if (( file = fopen("dat.txt", "r")) == NULL ){
        printf("Datotekata ne moze da se otvori");
        exit(-1);
    }

    while((fgets(red, 100, file)) != NULL){
        if ( petbukvi(red) == 1 && strlen(red) < max ){
        max=strlen(red);
        strcpy(maxRed, red);
    }
    }


    fclose(file);
    najdiPrvPosleden(maxRed);


    return 0;
}


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


void writeToFile() {
    FILE *f = fopen("dat.txt", "w");
    char c;
    while((c = getchar()) != '#') {
        fputc(c, f);
    }
    fclose(f);
}

int hasFiveLetter(char *red){

    int count = 0;

    while(*red){
        if(isalpha(*red))
            count++;
        if(count > 4)
            return 1;
        *red++;
    }
    return -1;

}

void printRow(char *red, int first, int last){

    for(int i = first; i <= last; i++){
        if(i == first){
            printf("%c", tolower(red[i]));
        }
        else if(i == last){
            printf("%c", tolower(red[i]));
        }
        else{
            printf("%c", red[i]);
        }
    }
}

void findFirstLast(char *red){

    int flag = 0, i = 0, first, last;

    while(red[i]){
        if(isalpha(red[i])&&flag == 0){
            first = i;
            flag = 1;
        }
        else if(isalpha(red[i])&&flag == 1){
            last = i;
        }
        i++;
    }
    printRow(red, first, last);
}

int main() {

    writeToFile();

    FILE *file = fopen("dat.txt", "r");

    char red[100], maxRed[100];

    int maxLen = 0;

    while(fgets(red, 100, file) != NULL){

        if(hasFiveLetter(red) && strlen(red) >= maxLen){
            maxLen = strlen(red);
            strcpy(maxRed, red);
        }
    }
    fclose(file);
    findFirstLast(maxRed);

    return 0;
}