57. State Machine Using Function Pointers

#include <stdio.h>

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

// Your logic here
void run_state_sequence(int start) {
    // Implement using function pointer array
    int count=0;
    void (*fptr[4])(void)={&state_init, &state_load, &state_execute, &state_exit};
    while(count!=3)
    {
        fptr[start]();
        count++;
        if(start==3)
        start=0;
        else
        start++;
    }
}

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