Search:

Your for loop should probably be:

for (n=0; n < num_length; n++)

Suppose your string is 10 characters. Then the ten characters are number[0], number[1], ..., number[9]

For printing dashes in...

You should probably use a for loop. For example if your str is "12345" then you could do something like



for (int i=0; i < 5; i++) {
switch(str[i]) {
...
}
}

If you read in the number as a string str, then the digit '2' is located at str[0].



switch(str[0]) {
case '1': printf("one");
break;
case '2': printf("two");
break;
...