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I'm facing a problem with storing characters in the following code. It is compiled but it is not taking 2nd,4th,6th... characters as inputs.

struct ll {
    char data;
    struct ll *next;
};

Here is the code for creating a Linked list.

struct ll* create_ll(struct ll *start){
    struct ll *p1,*p2;
    char a;
    printf("Enter q to stop\n");
    printf("Enter data:");
    scanf("%c",&a);
    while(a != 'q'){
    p1 = (struct ll*)malloc(sizeof(struct ll*));
    p1 -> data = a;
    if(start == NULL){
        start = p1;
        p2 = p1;
        p1 -> next = NULL;
        }
    else{
        p2 -> next = p1;
        p1 -> next = NULL;
        p2 = p1;
        }
    printf("Enter data:");
    scanf("%c",&a);;
    }
    return start;       
}
Sergey Kalinichenko
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Srikanth S.
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1 Answers1

2

Change 

scanf("%c",&a);

to

scanf(" %c",&a);
    // ^ Space here

Your scanf is reading your enter key as \n character

You could have seen it as I suspect the program outputs Enter data: twice each time.

Eregrith
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