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
    typedef void (*func_ptr)(void);
    func_ptr sequence[4][3] = {     {state_init,state_load,state_execute},
                                    {state_load,state_execute,state_exit},
                                    {state_execute,state_exit,state_init},
                                    {state_exit,state_init,state_load}
                                };                
    for(int i=0 ; i<3 ; i++){
        sequence[start][i]();
        printf("\n");
    }
}

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