GFG number of digit in a number recursive
public static int k = 1;
// complete the below function
public static int countDigits(int n)
{
if( n == 0 || n == 1 || n == 2 || n == 3 || n == 4 ||n == 5 || n == 6 || n == 7 || n == 8 || n == 9){
return k;
}
k = k + 1;
return countDigits(n / 10);
}
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