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 cnt = 3;
    void (*state[4])() =  {state_init,state_load,state_execute,state_exit};
    while(cnt--) {
        state[start]();
        printf("\n");
        start++;
        if(start > 3) {
            start = 0;
        }
    }
}

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

Solving Approach