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题解 | #统计复旦用户8月练题情况#

select us.device_id ,us.university ,count(qu.question_id) ,sum(if(qu.result='right',1,0)) from user_profile as us left join question_practice_detail a...

2024-10-24

0 59

题解 | #放苹果#

def count_ways(m, n): # 创建一个二维数组 dp，大小为 (m+1) * (n+1) dp = [[0] * (n + 1) for _ in range(m + 1)] # 初始化边界条件 for j in range(n + 1):...

2024-10-22

0 68

题解 | #计算字符串的编辑距离#

def edit_distance(str1, str2): m, n = len(str1), len(str2) # 初始化动态规划表 dp = [[0] * (n + 1) for _ in range(m + 1)] # 初始化边界情况 ...

2024-10-22

0 57

题解 | #密码截取#

def longest_palindrome(s): n = len(s) if n == 0: return 0 # 初始化动态规划表 dp = [[False] * n for _ in range(n)] max_len = 1...

2024-10-22

0 62

题解 | #购物单#

N, m = map (int, input().split()) main, aux = {}, {} N = int(N/ 10) for i in range(1, m + 1): v, p, q = map(int, input().split()) v = int(v/10...

2024-10-21

0 46

题解 | #大数加法#

import java.util.*; class Solution { public String solve(String num1,String num2){ StringBuilder s=new StringBuilder(); int i=num1...

2024-10-19

0 53