sequence of letters and points in c

Question

I need to make a program that compares several strings, I already tried to make one switch but it didn’t work because it only accepts a comparison character. I need each dot to represent a letter, example:

a .
b ..
c ...
d ... .

That’s what I could do:

#include <stdio.h>
#include <stdlib.h>
    
int main () {
    char letra;
    printf("Digite os pontos:");
    scanf("%s",&letra);
    switch (letra){
    
        case '..':
            printf("a\n");
        break;
        
        case '..':
            printf("b\n");
        break;
    }
    
    system("pause");
    return 0;
}

Answer 1

The best way for you to implement this is:

1 - Get the string with the dots (your code is already wrong because it puts on a char where only one fits '.');

2 - printf("Letter: %c", strlen(string_com_points) + 0x60);

With this simple printf line you turn x points '.' into a corresponding tiny ASCII. Obviously you need to put protections for maximum points and none, but it is very quiet.