🏃 Python Solutions of All Problems in FHC 2021 (In Progress)

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Security related resourcesalgorithmcompetitive-programmingalgorithm-challengesprogramming-contestshackercuppuzzle-solutioncontest-programmingfacebook-hacker-cup
Overview

FacebookHackerCup-2021 Language License Progress Visitors

Python solutions of Facebook Hacker Cup 2021. Solution begins with * means it will get TLE in the largest data set (total computation amount > 10^8, which is not friendly for Python to solve in 5 ~ 15 seconds). A 6-minute timer is set for uploading the result this year.

Qualification Round

# Title Solution Time Space Difficulty Tag Note
A1 Consistency - Chapter 1 Python Python O(|S|) O(1) Easy Greedy
A2 Consistency - Chapter 2 Python Python O(|S|) O(1) Easy Floyd-Warshall Algorithm, Dijkstra's Algorithm
B Xs and Os Python O(N^2) O(1) Easy Array
C1 Gold Mine - Chapter 1 Python O(N) O(N) Easy Tree, DFS
C2 Gold Mine - Chapter 2 Python O(N * K^2) O(N * K) Hard Tree, DFS, DP

Round 1

# Title Solution Time Space Difficulty Tag Note
A1 Weak Typing - Chapter 1 Python O(N) O(1) Easy Array
A2 Weak Typing - Chapter 2 Python Python O(N) O(1) Easy DP, Math, Counting
A3 Weak Typing - Chapter 3 Python Python O(N) O(1) Medium DP, Matrix Exponentiation, Math, Counting
B Traffic Control Python O(N * M) O(1) Easy Array, Constructing
C Blockchain Python O(N * MAX_C) O(N * MAX_C) Hard Sort, Union Find, Tree, DFS, DP
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