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 (*fp[4])(void);
    fp[0]=state_init;
    fp[1] =state_load;
    fp[2] =state_execute;
    fp[3] =state_exit;
    for(int i=0;i<3;i++)
    {
        fp[start]();
        printf("\n");
        start= (start+1)%4;
    }
}

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

Solving Approach