State Machine Using Function Pointers

Code

#include <stdio.h>

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

void run_state_sequence(int start) {
    void (*arr[])()={state_init,state_load,state_execute,state_exit};
    for(int i=start; i<start+3; i++)
    {
        int a =i%4;
        arr[a]();
        printf("\n");
    }
}

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

Solving Approach