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 (*state_machine[4])() =    {state_init, state_load,
                                    state_execute, state_exit};
    int count = 0, exe = start;
    while (count < 3) {
        state_machine[exe](); 
        printf("\n");
        exe = (exe + 1) % 4;
        count++;
    }
}

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

Solving Approach