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题解 | #四则运算#

s = input() s = s.replace('[', '(') s = s.replace(']', ')') s = s.replace('{', '(') s = s.replace('}', ')') exp = int(eval(s)) print(exp)

Python3

2021-10-17

1 613

题解 | #汽水瓶#

# 规律：除以2，再向下取整 import math while True: try: n = int(input()) if n == 0: break else: m = math.floor...

Python3

2021-10-13

1 477

题解 | #输入整型数组和排序标识，对其元素按照升序或降序进行排序#

n = int(input()) ls = list(map(int, input().split())) # 需要转成整数，才能排序 rnk = int(input()) if rnk == 0: ls.sort() ls = map(str,ls) # 需要转回字符串...

Python3

2021-10-13

39 3811

题解 | #求int型正整数在内存中存储时1的个数#

n = input() m = str(bin(int(n))) cnt = 0 for i in m[2:]: # bin()函数转出来的前缀加了0b cnt = cnt + int(i) print(cnt)

Python3

2021-10-13

0 383