State Machine Using Function Pointers

Code

#include <stdio.h>

void state_init()    { printf("Init\n"); }
void state_load()    { printf("Load\n"); }
void state_execute() { printf("Execute\n"); }
void state_exit()    { printf("Exit\n"); }

// Your logic here
void run_state_sequence(int start) {
    // Implement using function pointer array
    void (*func_ptr[4])() = { state_init, state_load, state_execute, state_exit };
    func_ptr[start](); 
    func_ptr[(start + 1) % 4](); 
    func_ptr[(start + 2) % 4](); 
}

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

Solving Approach

 

 

 

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Input

0

Expected Output

Init Load Execute