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) {
    void (*Execute[4])() = {state_init,state_load,state_execute,state_exit};
    for (int i=start;i<(start+3);i++)
        {
            int count = i%4;
            Execute[count]();
            printf("\n");
        }
    // Implement using function pointer array
}

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

Solving Approach

 

 

 

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Input

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Expected Output

Init Load Execute