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"); }

void (*state_arr[4])() = {
    &state_init, 
    &state_load,
    &state_execute,
    &state_exit
};

// Your logic here
void run_state_sequence(int start) {
    // Implement using function pointer array
    int i = 0;
    while (i < 3) {
        if (i != 0) {
            printf("\n");
        }
        state_arr[start]();
        start = (start + 1) % 4;
        i = i + 1;
    }
}

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