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 (*func_arr[4])() = {&state_init,&state_load,&state_execute,&state_exit};
    for (int i=0; i<3; i++) {
        func_arr[start]();
        printf("\n");
        start = (start + 1) % 4;
    }
}

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

Solving Approach