C Program to Find the First Occurence of the any Character of String2 in String1

#include < stdio.h>
 
void main()
{
    char s1[50], s2[10];
    int i, flag = 0;
    char *ptr1, *ptr2;
 
    printf("\nenter the string1:" );
    scanf(" %[^\n]s" , s1);    
    printf("\nenter the string2:" );
    scanf(" %[^\n]s" , s2);
 
    /*COMPARING THE STRING1 CHARACTER BY CHARACTER WITH ALL CHARACTERS OF STRING1*/
    for (i = 0, ptr1 = s1;*ptr1 !=  '\0';ptr1++)
    {
        i++;
        for (ptr2 = s2; *ptr2 != '\0';ptr2++)
        {
            if (*ptr1  ==  *ptr2)
            {
                flag = 1;
                break;
            }
        }
        if (flag  ==  1)
            break;
    }
 
    if (flag  ==  1)
        printf("\nfirst occurance of character of string2 in string1 is at position:%d and character is %c" , i, *ptr2);
    else
        printf("\nnone of the characters of string1 match with mone of characters of string2" );
}

Output

  
enter the string1:C Programming Class
 
enter the string2:rnp
 
first occurance of character of string2  in  string1 is at position: 3  and character is p

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