evenlySpaced

boolean evenlySpaced(int a, int b, int c) {

  if (mid(a, b, c) - min(a, b, c) == max(a, b, c) - mid(a, b, c)) {
    return true;
  } else {
    return false;
  }
}

int max(int a, int b, int c) {
  int ret;
  if (a > b && a > c) {
    ret = a;
  } else if (b > c) {
    ret = b;
  } else {
    ret = c;
  }
  return ret;
}

int mid(int a, int b, int c) {
  int ret;
  if ((a > b && a < c) || (a > c && a < b)) {
    ret = a;
  } else if ((b > a && b < c) || (b > c && b < a)) {
    ret = b;
  } else {
    ret = c;
  }
  return ret;
}

int min(int a, int b, int c) {
  int ret;
  if (a < b && a < c) {
    ret = a;
  } else if (b < c) {
    ret = b;
  } else {
    ret = c;
  }
  return ret;
}