决明子007

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题解 | 小红的正整数构造

import sys l,r,x = map(int,sys.stdin.readline().strip().split()) # print(l) # print(r) # print(x) flag = 0 num = 0 for i in range(l,r+1): if i % x...

2026-05-05

0 10

题解 | 最小循环节

s = input() print(len(set(s)))

2026-05-04

0 14

题解 | 构造A+B

import sys n,k = map(int,sys.stdin.readline().strip().split()) if k <= n-1: print("YES") else: print('NO')

2026-05-04

0 15

题解 | 字符逆序

s = input() print(s[::-1])

2026-05-04

0 13

题解 | 等差数列

n = int(input()) sum_num = (1+3*n)*(n)/2 print(int(sum_num))

2026-05-04

0 20

题解 | 自守数

import sys n = int(input()) count = 0 for i in range(n+1): if str(i**2).endswith(str(i)): count += 1 print(count)

2026-05-04

0 12

题解 | 记负均正

import sys n = int(input()) list1 = list(map(int,sys.stdin.readline().strip().split())) # print(n) # print(list1) positive_list = [] minus_count = 0 f...

2026-05-04

0 11

题解 | 表示数字

s = input() in_number = False new_str = '' for c in s: if c.isdigit() and in_number == False: # 如果当前是数字但是flag是F，说明是从非数字到数字切换了 new_str += ...

2026-05-04

0 10

题解 | 记票统计

import sys n = int(input()) name = list(sys.stdin.readline().strip().split()) m = int(input()) vote = list(sys.stdin.readline().strip().split()) # pri...

2026-05-03

0 12

题解 | 在字符串中找出连续最长的数字串

import sys s = list(sys.stdin.readline().strip()) list1 = [] for char in s: if char.isupper() or char.islower(): list1.append('.') ...

2026-05-02

0 16