57. State Machine Using Function Pointers

#include <stdio.h>

void state_init()    { printf("Init"); }
void state_load()    { printf("Load"); }
void state_execute() { printf("Execute"); }
void state_exit()    { printf("Exit"); }

// Your logic here
void run_state_sequence(int start) {
    void (*func_ptr[4])() = {state_init, state_load, state_execute, state_exit};
    // do a math thing to make sure it wraps around 
    for (int i = 0; i < 3; i++){ 
        (func_ptr[(start + i) % 4]());
        printf("\n");
    }
}

int main() {
    int start;
    scanf("%d", &start);
    run_state_sequence(start);
    return 0;
}