STRSTR()

this function filters for a specific pattern (a word or substring) within a larger string. it can be used in content filtering by finding a specific word in a given message or file.

#include <stdio.h>
#include <string.h>

int main() {
    // Declare and initialize a message
    char message[] = "This is an important notice for all employees.";

    // Use strstr to find the substring "Important"
    char *result = strstr(message, "Important");

    // Check if the substring "Important" is found
    if (result != NULL) {
        printf("The message is important!\n");
    } else {
        printf("The message is not important!\n");
    }

    return 0;
}