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])() ={&state_init,&state_load,&state_execute,&state_exit};
    for (int i=0; i<3; i++){
        fp[start]();
        printf("\n");
        start = (start+1) % 4; // to wrap arround
    }
}

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

Solving Approach