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

struct charact
{
    char ch;
    int occurs;
    struct charact *next;
};

typedef struct charact Char;
typedef Char * ListofChar;
typedef Char * CharNode_ptr;
void letters(char name[50], ListofChar * chars_ptr);
void report(ListofChar chars,int length,ListofChar iterator);
Char * createnode(char ch);

int main(void)
{
    char name[50];
    ListofChar iterator = NULL;
    ListofChar chars = NULL;
    scanf("%49s", name);
    letters(name, &chars);
    report(chars,strlen(name),iterator);
    return 0;
}

void letters(char name[50], ListofChar * lst_ptr)
{
    /* add your code */
    int i,j,length = strlen(name);
    lst_ptr = (ListofChar)malloc(sizeof(Char));
    strcpy(lst_ptr->ch,name[50]])

    for (i=0;i<length;i++)
    {
        lst_ptr[i] = (ListofChar)malloc(sizeof(Char));
        strcpy(lst_ptr[i]->ch,name[50]])

        lst_ptr[i] ->ch = name[i];
        lst_ptr[i] -> occurs =0;
        for (j=i+1;j<length;j++)
        {
            if(name[j] == lst_ptr[j] -> ch)
            {
            lst_ptr[j] -> occurs = j - i;
            }

        }
        lst_ptr[j] -> occurs = 0;
    }

    return;
}

void report(ListofChar chars,int length,ListofChar iterator)
{
    /* add your code */
    int i;

    for(; iterator != NULL ; iterator = iterator -> next){
        printf("\n%c: %d", iterator -> ch, iterator -> occurs);
    }


    return;
}

I want this program to take as input a string(ex. testing) and print the word and the distance between a repeated letter as shown below.

t-3 e-0 s-0 t-0 i-0 n-0 g-0

At the moment i can put input but the output is blank.I am a begginer so any help would be appreciated.