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Recursion

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void ab()
{
    auto int a;
    static int s= 5;
    a = ++s;
    printf("%d%d",a,s);
    if(a<= 7)
    ab();
    printf("%d%d",a,s);
}
void main()
{
    ab();
}



According to me answer should be- 667788887766 but the answer is - 667788887868. Please explain

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Ans-667788887868

a is local variable and s is static variable so scope of local variable is local and it will destroy after function is over and scope of static variable is throughout the program.

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