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包含标签:obcysio 的文章
  • Orange Boy Can You Solve It Out? Ep. 65
    OBCYSIO

    Orange Boy Can You Solve It Out? Ep. 65

    Solved Difficulty: D2C 思考题 inspired by Saionji Video Channel Eastmost Eki There are n points on a 2D plane. You can select any real point as pivot in the rectangle bounded by (a,b) and (c,d) and rotate the entire plane by d degree clockwis……
    XGN 2天前
  • Orange Boy Can You Solve It Out? Ep. 64
    OBCYSIO

    Orange Boy Can You Solve It Out? Ep. 64

    思考题 inspired by car lanes Car Lane In Ryuto the capital of the Dragon Kingdom, there is an intersection with k+1 exits. On one lane of one exit, there is a queue of n cars. The i-th car in the queue wants to go in the direction d_i (1\leq d_i\le……
    XGN 3天前
  • Orange Boy Can You Solve It Out? Ep. 63
    OBCYSIO

    Orange Boy Can You Solve It Out? Ep. 63

    Solved Difficulty: D2C-D2D 思考题 inspired by Create Mod Assembly Line There is an assembly line consisting of n machines. The i-th machine on the line holds an infinitely long input queue and a processing time of t_i seconds. The machines wo……
    XGN 3天前
  • Orange Boy Can You Solve It Out? Ep. 62
    OBCYSIO

    Orange Boy Can You Solve It Out? Ep. 62

    short 思考题 A^B Problem Given two pattern strings A and B that consists of lower-case letters, ? (match a single character) and * (match one or more characters) For example, abc?d*e matches abcfdppe and abcgde but not ae or abcdde. Find a string t……
    XGN 2025年1月2日
  • Orange Boy Can You Solve It Out? Ep. 61
    OBCYSIO

    Orange Boy Can You Solve It Out? Ep. 61

    思考题 featuring Hikari again! Guess the string Hikari and her master Ninetail are playing a game. Hikari thinks of a string S with lower-case letters, and Ninetail asks her to make q modifications one by one. Each modification can only be one of t……
    XGN 2024年9月4日
  • Orange Boy Can You Solve It Out? Ep. 61
    OBCYSIO

    Orange Boy Can You Solve It Out? Ep. 61

    思考题 from Maths homework again... 数学小题两道 Problem A You are given a bipartite graph G, find a proper coloring of the complement of G that uses minimum colors. |G|\leq 100 Problem B Given integer N. Find any n\geq N such that n+\varphi(n) is ……
    XGN 2024年5月22日
  • Orange Boy Can You Solve It Out? Ep. 60
    OBCYSIO

    Orange Boy Can You Solve It Out? Ep. 60

    Solved! Difficulty: Div2C :O 竟然有60期了!! 本期题目来源于Group Theory作业,,,难度不高 Congratulations on the 60th entry!! This problem is from my Group Theory homework (not very hard). Z(Sym(n))=ONE In the world of MATHS, a permutation i……
    XGN 2024年4月29日
  • Orange Boy Can't You Solve It Out? Ep. 59
    OBCYSIO

    Orange Boy Can't You Solve It Out? Ep. 59

    思考题 aimed for inexperienced participants? Silenced! Ookami and her teammates are taking an English class. The team has n people(animals?) in total. Initially, each person can raise his/her hand and speak freely. However, once a student has raise……
    XGN 2023年12月19日
  • Orange Boy Can You Solve It Out? Ep. 58
    OBCYSIO

    Orange Boy Can You Solve It Out? Ep. 58

    Solved! Difficulty: Div2 C 思考题 in mid autumn LianLi Branches Wulpit has drawn n nodes(indexed from 1 to n) and n-m edges on paper for homework assignments. They form m rooted trees (aka a forest). However, when she went to the toilet, Fely……
    XGN 2023年12月6日
  • Green Boy Can't You Solve It Out? Ep. 2
    OBCYSIO

    Green Boy Can't You Solve It Out? Ep. 2

    Solved! Difficulty: Div2B 1 problem for div3 participants. Beautiful Dice Painting When Epis is bored, she will draw dices. The canvas contains n*n dots. Initially they are all white. You need to paint exactly v dots black so that the final c……
    XGN 2023年10月22日