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 (*system_state[4])() = {state_init,state_load,state_execute,state_exit};
    system_state[start]();
    printf("\n");
    system_state[(start + 1) % 4]();
    printf("\n");
    system_state[(start + 2) % 4]();
}

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

Solving Approach