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"); }

void run_state_sequence(int start) {
    void (*funcPtr[4])();
    funcPtr[0] = &state_init;
    funcPtr[1] = &state_load;
    funcPtr[2] = &state_execute;
    funcPtr[3] = &state_exit;
   
    for (int i =0; i<3; i++){
        funcPtr[start]();
        printf("\n");
        start = ((start +1)% 4);
    }


}

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

Solving Approach