int strchr(char ,char );
printf("Enter 1st string\n");
printf("Enter character to find occurence\n");
printf("The character occured at %d position\n",i);
printf(" Sorry! the character is not present in the string");
int strchr(char a,char y)
Write a function occur(string, char) that returns the number of occurrences of that character in the string.
Write a function ustrcat(s1, s2, i) that concatenates contents of string s2 at the i position of string s1
Write a Program to accept days & convert it into equivalent no. of years, months, weeks & remaining days.