Codewars：解決Kata - 最高和最低

-1

這應該工作，但運行測試用例時出現錯誤。由於某種原因，第四次失敗。數字[0]打印出'-1'，但在分配給highest_number或lowest_number後只打印' - '。是什麼賦予了？Codewars：解決Kata - 最高和最低

代碼：

def high_and_low(numbers): 
    if numbers: 
     highest_number = numbers[0] 
     lowest_number = numbers[0] 
     numbers = numbers.split(" ") 
     print(highest_number) 
     print(lowest_number) 
     print(numbers[0]) 
     for num in numbers: 
      if int(num) > int(highest_number): 
       highest_number = num 
      if int(num) < int(lowest_number): 
       lowest_number = num 
     return highest_number + " " + lowest_number

測試用例：

Test.assert_equals(high_and_low("4 5 29 54 4 0 -214 542 -64 1 -3 6 -6"), "542 -214"); 
Test.assert_equals(high_and_low("1 -1"), "1 -1"); 
Test.assert_equals(high_and_low("1 1"), "1 1"); 
Test.assert_equals(high_and_low("-1 -1"), "-1 -1"); 
Test.assert_equals(high_and_low("1 -1 0"), "1 -1"); 
Test.assert_equals(high_and_low("1 1 0"), "1 0"); 
Test.assert_equals(high_and_low("-1 -1 0"), "0 -1"); 
Test.assert_equals(high_and_low("42"), "42 42");

錯誤：

ValueError: invalid literal for int() with base 10: '-'

來源

2016-10-29 terratunaz

先拆你的號碼，否則你只是在分配第一字符的numbers到你的變量：

numbers = numbers.split(" ") 
    highest_number = numbers[0] 
    lowest_number = numbers[0]

來源

2016-10-29 06:02:17

哇，我覺得很傻。謝謝。 – terratunaz

這裏試試吧！我剛剛得到它，我覺得很傻，你可以添加符號+符號！

答案是：

def high_and_low(numbers): 
    # must split the numbers, convert them to integers and print the max and min of list 
    numbers = numbers.split() 
    numbers = [int(i) for i in numbers] 
    return str(max(numbers))+" "+str(min(numbers))

來源

2016-11-30 20:43:41

Codewars：解決Kata - 最高和最低

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