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GATE | GATE CS 2011 | Question 48

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  • Last Updated : 28 Jun, 2021
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Consider the following recursive C++ function that takes two arguments 


unsigned int foo(unsigned int n, unsigned int r) {
  if (n  > 0) return (n%r +  foo (n/r, r ));
  else return 0;

What is the return value of the function foo when it is called as foo(345, 10) ?









Answer: (B)


The call foo(345, 10) returns sum of decimal digits (because r is 10) in the number n. Sum of digits for 345 is 3 + 4 + 5 = 12. \"pranjul_43\" This solution is contributed by Pranjul Ahuja

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