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) {
    // Implement using function pointer array
    void (*arr[4])() = {state_init, state_load, state_execute, state_exit};
    for (int i=0;i<3;i++){
        switch ((start+i)%4){
            case 0:{
            (arr[0])();
            printf("\n");
            break;}
             case 1:{
            (arr[1])();
            printf("\n");
            break;}
             case 2:{
            (arr[2])();
            printf("\n");
            break;}
            case 3:{
            (arr[3])();
            printf("\n");
            break;
            }
        }
    }
}

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