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Codeforces Educational Round 84 C – Game with Chips | Competitive Coding



In this series, Pulkit Chhabra, an avid programmer from DTU with offers from Amazon, Goldman Sachs & Codenation and master on Codeforces, discusses solution/approach to problem 1327-C, Game with Chips of Codeforces Global Round 84 held on 23 March 2020

The series will cover solutions to all problems from A to E

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12 Responses

  1. Amitoj Singh Ahuja

    i am not able to understand how all chips got to first cell instead only the chip in the last col and first row reached the first cell because while moving towards first cell we just took a path which is covering last column and first row

  2. PRAKHAR SHEKHAR PARTHASARTHI

    sir, I follow your code and I can't understand the meaning of some lines in your code
    Please explain the purpose of these lines———————————————————–
    1) mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
    2) #define pw(b,p) pow(b,p) + 0.1
    (why pow + 0.1 ???)

    3) #define ps(x,y) fixed<<setprecision(y)<<x
    4) ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

  3. Samad Khan

    Sir in the problem it is given
    If the chip was in the (x,y) cell, then after the operation:

    left, its coordinates will be (x,y−1);
    right, its coordinates will be (x,y+1);
    down, its coordinates will be (x+1,y);
    up, its coordinates will be (x−1,y).

    Then to go LEFT why we are not using "U"; Same for RIGHT we should use "D"

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