JHAGIRLS - AAO KABHI HAWELI PE :P
JUNIOR_G'S closest friend JHA_G is very kind and helping person. He invites every girl to his HAWELI("AAO KABHI HAWELI PE"), so that he can help them :) . As he is also good in problem solving so to be his guest girls have to solve a problem to open the door.
Door contains a square grid of size n×n (3<n<31) and have n stones. Place those stones in such a way that no two stones should be alined with each other.
Two stones are called alined if:
i) they share common row or column.
ii) or they share common diagonal i.e. a straight line going through 'a' and 'b' is a diagonal for all smallest square between them.
"CODING IS FUN ENJOY IT" :)
First line contain an integer T (0<T<10001). Each test case contain an integer n (3<n<31).
For each test case output n lines containg row number and column number (1 based indexing and sorted according to row number (increasing order )).
5 Output: 1 1
Easy one :-)
Last edit: 2017-04-05 06:22:37
Aa gaye Haweli pe :P N-queens problem, lol
The test cases are weak... A wrong AC solution gave this output on n=4 :
print any solution
@ problem setter ...can we print any solution out of multiple solutions to the problem
The problem has multiple solutions. Print any one of them.
how can i avoid TLE?
This is surely a tutorial problem, a much harder version already exists in SPOJ: http://www.spoj.com/problems/NQUEEN/