Event-Based Triggers Using Function Pointer Array

Code

#include <stdio.h>

void on_button() {
    printf("Button Pressed");
}
void on_timer() {
    printf("Timer Expired");
}
void on_uart() {
    printf("UART Received");
}
void on_power() {
    printf("Power On");
}
void on_error() {
    printf("Error Detected");
}

// Write your event dispatcher logic here
typedef void(*event_handler_fptr_t)();
event_handler_fptr_t event_handlers[] = {
    on_button,
    on_timer,
    on_uart,
    on_power,
    on_error
};

void handle_event(int event_code) {
    if (event_code > 4) {
        printf("Unhandled Event");
        return;
    }

    event_handlers[event_code]();
}

int main() {
    int event;
    scanf("%d", &event);
    handle_event(event);
    return 0;
}

Solving Approach