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题解 | 字符逆序

import sys n = input() back = [] for str in reversed(n): back.append(str) print("".join(back)) 倒序入栈

2025-07-14

0 5

题解 | 字符串分隔

n = input() if len(n) <= 8: print(n + '0' * (8 - len(n))) # 如果字符长度小于8，直接补全 else: for j in range(1, len(n)): if j % 8 == 0: ...

2025-07-14

0 8

题解 | 计算某字符出现次数

st1 = input().lower() # 将字符串中字母全部转为小写 st2 = input().lower() # 将寻找的字符中的字母转为小写，与输入一致 num = 0 for str in st1: if st2 == str: num += 1 print...

2025-07-14

0 12

题解 | 字符串最后一个单词的长度

# n = input() # num = 0 # for str in reversed(n): # if str != ' ': # num += 1 # else: # break # print(num) ipt = input().split...

2025-07-14

0 12

题解 | 提取不重复的整数

n = input() back = [] # for i in range(len(n)-1,-1,-1): # if n[i] not in back: # back.append(n[i]) # else: # i -= 1 # result =...

2025-07-14

0 13

题解 | 取近似值

n = float(input()) if n-int(n)>=0.5: print(int(n)+1) else: print(int(n)) python中int取整是向下取整，判断n与int(n)的差即可

2025-07-14

0 7