string strpbrk() function

Question

https://code.sololearn.com/cA13a74A12A1
I am trying to show the letters of string1 that match with string2 as output but it's not working properly.
8.18
Write and test the strpbrk() function.

Answer 1

@Martin thank you .I knew that I was getting it wrong. Some of the definitions of these string functions are pretty close to each other like strspn,strcspn etc.

Answer 2

@Martin I've understood this better now

Answer 3

@Martin I am feeling the same way about myself as you are...But time is really short for me now as exam is near..still I take a break while doing all this like spending time with family and friends.