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
    int current_index = 0;
    void (*state_fun[])() = {state_init, state_load, state_execute, state_exit}; // function pointer
;
    for (int x = 0; x < 3; x++)
    {
        state_fun[(start + x) % 4](); // n % m if n is smaller than m means that n is answer
        printf("\n");
    }
    
}

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

Solving Approach

 

 

 

Upvote
Downvote
Loading...

Input

0

Expected Output

Init Load Execute