title: How To Turn Off A Particular Bit In A Number
signature: func howToTurnOffAParticularBitInANumber(n int, k int) int {
source_py: def how_to_turn_off_a_particular_bit_in_a_number(n, k):
      if (k <= 0):
          return n
      return (n & (~ (1 << (k - 1))))
source_cpp: int how_to_turn_off_a_particular_bit_in_a_number(int n, int k) {
    if ( k <= 0 ) return n;
    return ( n & ~ ( 1 << ( k - 1 ) ) );
  }