State Machine Using Function Pointers

Code

#include <stdio.h>
#define SEQ_STATES 3
#define TOT_STATES 4

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 (*sequence[])() = { state_init, state_load, state_execute, state_exit };

    for (int i = 0; i < SEQ_STATES; i++) {
        sequence[(i + start) % TOT_STATES]();
        printf("\n");
    }
    
}

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

Solving Approach