strpbrk() in C

// C code to demonstrate the working of
// strpbrk
#include <stdio.h>
#include <string.h>

// Driver function
int main()
{
    // Declaring three strings
    char s1[] = "geeksforgeeks";
    char s2[] = "app";
    char s3[] = "kite";
    char* r, *t;

    // Checks for matching character
    // no match found
    r = strpbrk(s1, s2); 
    if (r != 0)
        printf("First matching character: %c\n", *r);
    else
        printf("Character not found");

    // Checks for matching character
    // first match found at "e"
    t = strpbrk(s1, s3);
    if (t != 0)
        printf("\nFirst matching character: %c\n", *t);
    else
        printf("Character not found");

    return (0);
}

// C code to demonstrate practical application
// of strpbrk
#include <stdio.h>
#include <string.h>

// Driver function
int main()
{
    // Initializing victory string
    char s1[] = "victory";

    // Declaring lottery strings
    char s2[] = "a23";
    char s3[] = "i22";
    char* r, *t;

    // Use of strpbrk()
    r = strpbrk(s1, s2);
    t = strpbrk(s1, s3);

    // Checks if player 1 has won lottery
    if (r != 0)
        printf("Congrats u have won");
    else
        printf("Better luck next time");

    // Checks if player 2 has won lottery
    if (t != 0)
        printf("\nCongrats u have won");
    else
        printf("Better luck next time");

    return (0);
}