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

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

Solving Approach

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