school/lepsiznak.c

//
// Created by bruno on 12/11/23.
//

#include "lepsiznak.h"
#include "stdio.h"

void invertcase(int *c) {
    if (*c >= 'a' && *c <= 'z') {
        *c -= 0x20;
    } else if (*c >= 'A' && *c <= 'Z') {
        *c += 0x20;
    }
}

int lepsiznak() {

    int c;
    int pocet = 0;
    const int koniec = 'k';

    while ((c = getchar()) != koniec) {
        invertcase(&c);
        putchar(c);
        pocet++;
    }
    printf("\nVydržal si %d znakov pred tým, ako si napísal %c.\n", pocet, koniec);
    return 0;

}