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Problem NAKANJ

February 22, 2024 by admin Category: Top

You are viewing the article Problem NAKANJ  at Tnhelearning.edu.vn you can quickly access the necessary information in the table of contents of the article below.

MAGNUS CARLSEN TEACH BOTEZ SISTER, HOW KNIGHTS MOVES in CHESS
MAGNUS CARLSEN TEACH BOTEZ SISTER, HOW KNIGHTS MOVES in CHESS

Table of Contents

  • NAKANJ – Minimum Knight moves !!!
    • Input
    • Output
    • Constraints
    • Example

NAKANJ – Minimum Knight moves !!!

Anjali and Nakul are good friends. They both had a quarrel recently while playing chess. Nakul wants to know the minimum number of moves a knight takes to reach from one square to another square of a chess board (8 × 8). Nakul is brilliant and he had already written a program to solve the problem. Nakul wants to know whether Anjali can do it. Anjali is very weak in programming. Help her to solve the problem.

A knight can move in the shape of an “L” in a chessboard – two squares either forward, backward, left, or right and then one square to its left or right. A knight move is valid if it moves as mentioned above and it is within the boundary of the chessboard (8 × 8).

  Chess Rules: Complete List of Official Rules of Chess

Input

There are T test cases in total. The next T lines contain two strings (start and destination) separated by a space.

The strings start and destination will only contain two characters – First character is an alphabet between ‘a’ and ‘h’ (inclusive), Second character is a digit between ‘1’ and ‘8’ (inclusive) – (Quotes just for clarity).

READ More:   How to make pineapple braised basa, everyone who eats must nod and praise it

To know the knight moves more clearly refer to the above figure.

Output

Print the minimum number of moves a knight takes to reach from start to destination in a separate line.

Constraints

1 <= T <= 4096

Example

Input: 3 a1 h8 a1 c2 h8 c3 Output: 6 1 4

hide comments

stubs_fox:
2023-01-24 17:14:41

AC in 4294967296 goes 😀 so proud

mehraj_mi2:
2023-01-21 11:29:47

AC in one go :X

codertoon:
2023-01-15 11:30:09

check validity of children cells and reset visited and level array for each test case. 🙂 got AC in 3rd go bcz of a silly mistake.

hemant0557:
2023-01-12 15:29:26

<snip>

avl_tree_10:
2022-09-27 13:45:14

nice question

majay1638:
2022-09-20 15:14:58

For python users try submit in pypy ,

bpeter:
2022-08-15 01:31:50

solved in one go

harsh_it2003:
2022-05-11 15:39:51

boom, in second go. first was silly bad.

dark_coder0007:
2021-11-16 20:09:43

AC in one go!! (hint: Use BFS on 2D grid)

sabkx:
2021-10-23 05:41:58

Can anyone check why when i submit all the “&&” in my c++ code become &¤,giving me compile error? Thank you.

  File:Chess illusion 3d knight move.jpg
Added by: Nakul Krishna
Date: 2012-09-30
Time limit: 1s
Source limit: 50000B
Memory limit: 1536MB
Cluster: Cube (Intel G860)
Languages: All except: ASM64
Resource: Used for Code it – Vidyut 2012 – Amrita University

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