Help with test cases

#1

code: https://ide.codingblocks.com/s/461116

problem: https://hack.codingblocks.com/app/contests/2142/133/problem

it is giving tle for large input I have heard for such cases you can directly use formula for oeis but I don’t know how

#2

hello @raghav007

pass ur board array by reference in all the function, it will save the extra copying time.
and then try to submit

#3

it is not passing one test cases

#4

…

use bitset to make it more efficient.

refer this->

#5

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