I’ve been learning C and i decided to start a project, Encrypt and Decrypt in ROT13 since i just tought it was the easiest to start with.

I cant seem to figure a way to read the string and change the characters acording to ROT13, i was thinking about a dictionary but i also cant seem to figure that out and use it

I tried LUT but couldnt manage to make it work because everything i found was way too hard for me to understand. I was expecting to just replace every letter with the correspondign one with a lot of Switch or If’s but i just know that its not something good to do. I also cant seem to insert the string with fgets, for some reason it just prints “���x�_�����0�x�_”

#include <stdio.h>

// https://rot13.com/

void Encrypt()
{
    char text[50];
    printf("Insert the desired text (Maximum of 50 characters): n");
    fgets(text, sizeof(text), stdin);
    for (int i = 0; i < sizeof(text); i++)
    {
        printf("%c", text[i]);
    }
}

int main()
{
    int menu;
    while (menu == 0)
    {
        printf("Choose one of the following options: n");
        printf("[1] Encryptn");
        printf("[2] Decryptn");

        scanf("%i", &menu);

        if (menu == 1)
        {
            Encrypt();
        }
        if (menu == 2)
        {
            // Decrypt();
        }
    }
}