python 面试常见的编程题

1、冒泡排序

1 def foo(list):
2     n = len(list)
3     for i in range(n):
4         for j in range(0, n-i-1):
5             if list[j] > list[j+1]:
6                 list[j], list[j+1] = list[j+1], list[j]
7     return list

2、二分查找

 1 def foo1(list, item):
 2     low = 0
 3     high = len(list) - 1
 4     while low <= high:
 5         mid = (high - low) // 2 + low
 6         guess = list[mid]  # 中位数
 7         if guess > item:
 8             high = mid -1
 9         elif guess < item:
10             low = mid + 1
11         else:
12             return mid

3、水仙花数（1000内取值）

1 def foo2(num):
2     a = num // 100 # 百位取余
3     b = num % 100 // 10  # 10位取余
4     c = num % 10 # 个位取余
5     d = a ** 3 + b ** 3 + c ** 3
6     if num == d:
7         print(num)

4、斐波那契数列

1 def foo(num):
2     if num <= 1:
3         return num
4     else:
5         return foo(num-1) + foo(num-2)
1 def foo(num):
2     n, a, b = 0, 0, 1
3     while n < num:
4         print(b)
5         a, b = b, a+b
6         n = n + 1

 

posted @ 2021-06-04 15:57  菜菜_包包  阅读(326)  评论(0)  编辑  收藏  举报