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"); }

// Your logic here
void run_state_sequence(int start) {
    // Implement using function pointer array
    void (*fptr[4]) ();
    fptr[0] = state_init;
    fptr[1] = state_load;
    fptr[2] = state_execute;
    fptr[3] = state_exit;
    int i = 0;
    int j = 0;
    while(i<3)
    {
        fptr[(start+i) % 4]();
        printf("\n");
        ++i;
    }
}

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

Solving Approach