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分苹果

注意输入格式为 2 4def f(m,n): if n==1 or m==1 or m==0: return 1 elif m<0 or n<=0: return 0 else: return f(m-n,n)+f(m,n-1...

2021-03-11

0 602

python解法标记一下是否是第一次出现

encoding:utf-8 if name == 'main': while True: try: s = raw_input() i= 0 s1 = '' flag = 1 ...

2020-10-06

0 666

python 统计字符

if name =='main': while True: try: s = raw_input() i =0 num_digit = 0 num_space =0 nu...

2020-10-06

1 655

python 自守数，很好做

def is_num(n): com = n * n - n j = 0 a=1 sum =0 while j < len(str(n)): a = a * 10 j = j + 1 if com % a == 0: ...

2020-10-06

0 708

python解法这类题目看着似乎很难，但是非常简单，之前不知道怎么没做出来，其实就是除以3，最后可以借一瓶

if name == 'main': while True: try: n = input() if n== 0: break sum = 0 a=n ...

2020-10-06

0 517

python解法，参考里面的写法分别计算，字母，数字和符号的个数，分类讨论，注意讨论细节中间错了很多次

encoding:utf-8 if name == 'main': log = 0 while True: try: s = raw_input() if len(s)<=4: score = ...

2020-10-06

0 738

python 素数解法

def prime_num(n): i=2 while i<n: if n%i == 0: return False i=i+1 return True if name == 'main': while True: ...

2020-10-06

0 658

python 等差数列求和，简单数学公式

if name == 'main': while True: try: n = input() if n> 0: print n(3n+1)/2 else: ...

2020-10-05

0 738

python解法，似乎很简单，想的很复杂

if name == 'main': while True: try: n = input() num =0 for i in range(6,n+1): if '7' in str(...

2020-10-05

3 806

python sort函数秒杀

if name == 'main': while True: try: s = raw_input() list = sorted(s) strs = '' for i in range(le...

2020-10-05

1 1004