title: Pythagorean Quadruple
signature: pythagorean_quadruple <- function(a, b, c, d) {
source_py: def pythagorean_quadruple(a, b, c, d):
      sum = (((a * a) + (b * b)) + (c * c))
      if ((d * d) == sum):
          return True
      else:
          return False
source_cpp: bool pythagorean_quadruple(int a, int b, int c, int d) {
    int sum = a * a + b * b + c * c;
    if ( d * d == sum ) return true;
    else return false;
  }