K & R C Programs Exercise 2-5.

K and R C, Solution to Exercise 2-5:
 K and R C Programs Exercises provides the solution to all the exercises in the C Programming Language, second addition, by Brian W.Keringhan and Dennis M.Ritchie(Prentice Hall,1988). You can learn and solve K&R C Programs Exercise.
Write the C function any(s1, s2), which returns the first location in the string s1 where any character from the string s2 occurs, or -1 if s1 contains no characters from s2.The standard library function strpbrk does the same job but returns a pointer to the location.Read more about C Programming Language .
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int any(char s1[], chars2[])
{
int i, j;
for(i=0;s1[i]!='