school/funkcie.c

//
// Created by bruno on 3/11/24.
//

#include "funkcie.h"
#include "stdio.h"

void greet(char meno[]) {
    printf("Ahoj %s, vitaj na Adlerke.\n", meno);
}

int obsahObdlznika(int w, int h) {
    return w * h;
}

int factorial(int cislo) {
     if(cislo == 1 || cislo == 0) {
        return 1;
    } else {
        return cislo * factorial(cislo - 1);
    }
}

int funkcie(void) {
    greet("Jožo");
    greet("Fero");
    greet("Viki");
    int a = 10;
    int b = 5;
    printf("Zadaj strany obdĺžnika (a b):");
    scanf("%d %d", &a, &b);
    printf("Obdĺžnik so stranami %d a %d má obsah %d.\n", a, b, obsahObdlznika(a, b));
    return 0;
}

int containscharacter(char character, char characters[]) {
    int i = 0;
    while (characters[i]) {
        if (character == characters[i]) {
            return 1;
        }
        i++;
    }
    return 0;
}

int jeCislo(char znak) {
    return znak > 47 && znak < 58;
}

void toLowercase(char *instring) {
    int i = 0;
    while (instring[i] != '\n') {
        if (instring[i] > 64 && instring[i] < 91) {
            instring[i] += 32;
        }
        i++;
    }
}

int counterChars() {
    char instring[256];
    printf("Zadaj max 255 znakový reťazec.");
    fgets(instring, 255, stdin);
    toLowercase(instring);
    char samohlasky[] = "aeiou";
    char spoluhlasky[] = "bmprsvzfhgkdtnlcj";

    int cislaCnt = 0;
    int samohlaskyCnt = 0;
    int spoluhlaskyCnt = 0;

    int i = 0;
    while (instring[i] != '\n') {
        if (jeCislo(instring[i])) {
            cislaCnt++;
        } else if (containscharacter(instring[i], samohlasky)) {
            samohlaskyCnt++;
        } else if (containscharacter(instring[i], spoluhlasky)) {
            spoluhlaskyCnt++;
        }
        i++;
    }
    printf("\"%s\" je dlhý %d znakov, %d z nich sú čísla, %d z nich sú samohlásky, %d z nich sú spoluhlásky a zvyšných je %d.\n",
           instring, i, cislaCnt, samohlaskyCnt, spoluhlaskyCnt, i - cislaCnt - samohlaskyCnt - spoluhlaskyCnt);

    return 0;
}

int facttest() {
    for (int i = 0 ; i < 11 ; i++){
        printf("%d: %d\n", i, factorial(i));
    }
    int infact;
    printf("Zadaj číslo: ");
    scanf("%d", &infact);
    printf("Factorial z %d je %d", infact, factorial(infact));
    return 0;
}