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[Title Description] Force bucklehttps://leetcode-cn.com/problems/maximum-employees-to-be-invited-to-a-meeting/ A company is going to organize a meeting with n# employees on the invitation list. The company has prepared a round table for any number of employees. Employee numbers are 0} to n - 1. Each employee has an employee who likes ， and ...

350. Intersection of two arrays II Given two arrays, write a function to calculate their intersection. Example 1: Input: nums1 = [1,2,2,1], nums2 = [2,2] Output: [2,2] Example 2: Input: nums1 = [4,9,5], nums2 = [9,4,9,8,4] Output: [4,9]   explain: The number of occurrences of each element in the output result shall be consistent with the m ...

Portal I was at the end of the preview course, but I still couldn't help writing a set of questions A Check in. How many digits of the number are 9. #include <bits/stdc++.h> using namespace std; typedef long long LL; #define rep(i,a,b) for(int i = (a);i <= (b);++i) #define re_(i,a,b) for(int i = (a);i < (b);++i) #define dwn(i,a, ...

Original address: http://www.usaco.org/index.php?page=viewproblem2&cpid=87 Title Description Hearing that the latest fashion trend was cows with two spots on their hides, Farmer John has purchased an entire herd of two-spot cows. Unfortunately, fashion trends tend to change quickly, and the most popular current fashion is cows with only on ...

subject N people of different heights stand in a row at certain intervals. Everyone monitors whether the people they can see are doing other things according to the following rules. Rule: no one can be taller than me between me and the i-th person I want to monitor, No one can be taller than the i-th person. For example, according to the ...

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Mainly write: 0-1 backpack, complete backpack (unlimited number of coins in change), multiple backpack (limited number of coins in change), fractional backpack 0-1 backpack: there are N items and a backpack with a capacity of V. each item can only be used once. The volume of article I is v[i], and the value is w[i]. Solve which items are loade ...

LeetCode best time to buy and sell stocks series summary This kind of dynamic programming is optimized from two-dimensional dynamic gauge to one-dimensional dynamic gauge. Greed can also be used in some problems. catalog: 121 the best time to buy and sell stocks 1 122 the best time to buy and sell stocks 2 123the best time to buy and sell st ...

AtCoder Beginner Contest 215 Problem solving (A-F) A. Your First Judge Main idea of the title: Determine whether the string is equal to " H e l l o , ...

Simple dynamic programming Explanation: dynamic programming (DP) is effective in finding the optimal solutions of many overlapping subproblems. It recombines the problems into subproblems. In order to avoid solving these subproblems many times, their results are gradually calculated and saved, from the simple problem to the whole problem. Dyna ...