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"); }

typedef void (*state_sequence) ();

state_sequence state_array[4] = {state_init, state_load, state_execute, state_exit};


// Your logic here
void run_state_sequence(int start) {
    for (int i=0; i<3; i++) {
        int index = (start + 1) % 4;
        state_array[index]();
        printf("\n");
    }
}

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

Solving Approach