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 (*array[])()={state_init,state_load,state_execute,state_exit};
    int size = sizeof(array) / sizeof(array[0]);
    int n=0,i=start;
    while(n<3){
        array[i]();
        printf("\n");
        i=(i+1)%size;
        n++;
    }
}

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

Solving Approach