main.c

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

unsigned PocetMezer(char *radek) {
    if (radek == NULL) {
        return 0;
    }

    unsigned counter = 0;
    for (int i = 0; radek[i] != '\0'; i++) {
        if(*(radek + i) == ' ') {
            counter++;
        }
    }
    return counter;
}

int NactiRadek(char **radek, FILE *file) {
    if (radek == NULL || file == NULL) {
        return -1;
    }
    if (*radek != NULL) {
        return -2;
    }
    int len = 10;
    char* buffer = (char*) malloc(len* sizeof(char));
    if (buffer == NULL) {
        return -3;
    }
    int currentChar = fgetc(file);
    int counter = 0;
    if(feof(file)) {
        free(buffer);
        return -4;
    }
    while(currentChar != '\0' && currentChar != '\n' && !feof(file)) {
        if (counter >= len - 1) {
            int newLen = 2*len;
            char *newBuffer = (char*)malloc(newLen* sizeof(char));
            for (int i = 0; i < len; i++) {
                *(newBuffer + i) = *(buffer + i);
            }
            free(buffer);
            buffer = newBuffer;
            len = newLen;
        }
        *(buffer + counter) = (char) currentChar;
        counter++;
        currentChar = fgetc(file);
    }
    *(buffer+counter)='\0';

    // nasobeni mezer
    char* out = (char*) malloc((counter + PocetMezer(buffer)* sizeof(char)));
    int outAppend = 0;
    for(int i = 0; i < (counter+PocetMezer(buffer)); i++) {
        *(out+outAppend+i)= *(buffer + i);
        if(*(buffer + i) == ' ') {
            outAppend++;
            *(out+outAppend+i)=' ';
        }
    }
    *radek = out;
    free(buffer);
    return counter;
}

int PrevedPole(char* radek, unsigned **vystup) {
    int len = 0;
    for (int i = 0; *(radek + i) != '\0'; i++) {
        len++;
    }

    unsigned *out = (unsigned*) malloc(len* sizeof(unsigned));
    for(int i = 0; i < len; i++) {
        *(out+i) = (unsigned) *(radek + i);
        printf("%u ", (unsigned) *(radek + i));
    }

    *vystup = out;

    return 0;
}

int main(void) {
    char* out = NULL;
    FILE* in = fopen("../input.txt", "r");
    int ret = NactiRadek(&out, in);
    if(ret < 0) {
        fclose(in);
        return -1;
    }
    printf("%s\n", out);
    unsigned* ints = NULL;
    PrevedPole(out, &ints);

    fclose(in);
    free(out);
}