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The most numbers
一、题目描述
要求：给定一组浮点数，找到这组数字最大值和最小值的差；要求程序可以自适应个数不同的参数，如果这组数字是空集，返回0.
输入：一组数字
输出：浮点数
示例：
checkio(1, 2, 3) == 2
checkio(5, -5) == 10
checkio(10.2, -2.2, 0, 1.1, 0.5) == 12.4
checkio() == 0二、解题示例
1.学会可变参数
def checkio(*args):
tmp = list(args)
return 0 if len(tmp) == 0 else max(tmp) - min(tmp)
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
def almost_equal(checked, correct, significant_digits):
precision = 0.1 ** significant_digits
return correct - precision < checked < correct + precision
assert almost_equal(checkio(1, 2, 3), 2, 3), "3-1=2"
assert almost_equal(checkio(5, -5), 10, 3), "5-(-5)=10"
assert almost_equal(checkio(10.2, -2.2, 0, 1.1, 0.5), 12.4, 3), "10.2-(-2.2)=12.4"
assert almost_equal(checkio(), 0, 3), "Empty"
print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")2.精简写法
def checkio(*args):
return max(args) - min(args) if args else 0
if __name__ == '__main__':
def almost_equal(checked, correct, significant_digits):
precision = 0.1 ** significant_digits
return correct - precision < checked < correct + precision
assert almost_equal(checkio(1, 2, 3), 2, 3), "3-1=2"
assert almost_equal(checkio(5, -5), 10, 3), "5-(-5)=10"
assert almost_equal(checkio(10.2, -2.2, 0, 1.1, 0.5), 12.4, 3), "10.2-(-2.2)=12.4"
assert almost_equal(checkio(), 0, 3), "Empty"
print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")