• 2024-09-05Marbles 题解
    前言题目链接:Codeforces;洛谷。题意简述给定长度为\(n\)的序列\(a\),你可以交换相邻元素,请问最少交换多少次使得序列连续,即对于每种颜色,其在序列中出现的位置都是连续一段。\(m=\max\{a_i\}\leq20\),\(n\leq4\times10^5\)。题目分析对于“连续的序列”,不放看做
  • 2023-12-28E2. Game with Marbles (Hard Version)
    E2.GamewithMarbles(HardVersion)Theeasyandhardversionsofthisproblemdifferonlyintheconstraintsonthenumberoftestcasesand$n$.Inthehardversion,thenumberoftestcasesdoesnotexceed$10^4$,andthesumofvaluesof$n$overall
  • 2023-07-24C语言指针的常见问题
    1值传递下面看一个列子,student结构体中包含该学生的各种信息,我们在change函数中对其进行部分修改,再在主函数中输出其结果#include<stdio.h>#include<string.h>#defineformat"%d\n%s\n%f\n%f\n%f\n"structstudent{intnum;charname[20];floatscore[3]
  • 2023-04-26Marbles UVA - 10090
    给定两种购买物品的方案:花费c1元购买n1个物品,或者花费c2c2​元购买n2n2​个物品。方案可以无限使用,询问购买n个物品至少要多少元,若无法恰好购买到n个物品输出failed     #include<iostream>#include<algorithm>#include<cstring>#include<cmath>
  • 2023-02-01Put Marbles in Bags
    PutMarblesinBagsYouhave k bags.Youaregivena0-indexed integerarray weights where weights[i] istheweightofthe ith marble.Youarealsogi
  • 2022-10-14[Unit testing RxJS] Test error handling with marbles
    const{TestScheduler}=require("rxjs/testing");const{map,take,delay,mapTo,catchError}=require("rxjs/operators");const{concat,from,of}=requ
  • 2022-10-13[Unit testing RxJS] Test asynchronous operations with marbles
    const{TestScheduler}=require("rxjs/testing");const{map,take,delay}=require("rxjs/operators");const{concat,from}=require("rxjs");describe(
  • 2022-10-13[Unit testing RxJS] Test hot observables with marbles
    const{TestScheduler}=require("rxjs/testing");const{map,take}=require("rxjs/operators");const{concat}=require("rxjs");describe("Marbletesti