[Solved] my output of link list is not correct? [closed]

Question

Remember pressing Enter after entering data for the previous scanf? This newline character is consumed by the scanf with a %c.

You have to change

scanf("%c",&ch);
fflush(stdin);

to

scanf(" %c", &ch);

so that the scanf will skip the newline character left over by the previous scanf. The space before %c is a whitespace character and whitespace characters in the format string of scanf tells scanf to scan and discard any number of whitespace characters, if any, until the first non-whitespace character.

And fflush(stdin); is undefined as per the C standard although some implementations define its behavior. Basically, you should avoid it to increase portability.

Accepted Answer

Remember pressing Enter after entering data for the previous scanf? This newline character is consumed by the scanf with a %c.

You have to change

scanf("%c",&ch);
fflush(stdin);

to

scanf(" %c", &ch);

so that the scanf will skip the newline character left over by the previous scanf. The space before %c is a whitespace character and whitespace characters in the format string of scanf tells scanf to scan and discard any number of whitespace characters, if any, until the first non-whitespace character.

And fflush(stdin); is undefined as per the C standard although some implementations define its behavior. Basically, you should avoid it to increase portability.