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(*op[])(void) = {state_init, state_load, state_execute, state_exit};

    for(int count = 0, i = start; count < 3; count++)
    {
        if(i > 3)
            i %= 4;
        op[i]();
        printf("\n");
        i++;
    }
}

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