There is a variant of the well-known N-queens problem which involves queens and knights and is said to be "considerably more difficult" 1. The problem statement is as follows:
You must place an equal number of knights ♞ and queens ♛ on a chessboard
such that no piece attacks any other piece...10
In chess, a queen can move as far as as the board extends horizontally, vertically, or diagonally.
Given a NxN sized chessboard, print out how many possible positions N queens can be placed on the board and not be able to hit each other in 1 move.
5
as some of you may know, n-queens problem is a set of algorithm puzzle that given a 'n x n' where n is the board size of a (let's say) chessboard, and the main goal is for the n queens (where n is the number of the queens) not be able to 'attack' one another in the board.
now I have a set of con...
Anonymous
Task
Write a program or function that will determine if a point in 3D space lies on a 2D parabolic curve.
Input
3 points in 3D space
vertex of a 2D parabola curve
arbitrary point on the curve
arbitrary point in space
Input may be taken in any form (hardcoded, string, array, etc).
Outp...
Given four RGB LEDs, your task is to cycle through all the LEDs, with one Color Per LED, and only one LED displaying a color at a time.
So for 8 colors across 4 LEDs, it would look like this:
LED1 LED2 LED3 LED4
0xFF,0x0,0x0 OFF OFF OFF
OF...
For each row and column of a matrix, we can add an extra entry with the sum of the last two entries in that row or column. For example with the following input matrix:
[ 1 1 1 ]
[ 2 3 4 ]
The resulting matrix would be:
[ 1 1 1 2 ]
[ 2 3 4 7 ]
[ 3 4 5 9 ]
Given an input of an integer N and ...
ZZ Top /ˈziːziːtɒp/ is an American rock band that formed in 1969 in Houston, Texas. The band comprises guitarist and lead vocalist Billy Gibbons (the band's leader, main lyricist, and musical arranger), bassist and co-lead vocalist Dusty Hill, and drummer Frank Beard. One of the few major label recording groups to have held the same lineup for more than 40 years, ZZ Top has been praised by critics and fellow musicians alike for their technical mastery. Of the group, music writer Cub Koda said, "As genuine roots musicians, they have few peers; Gibbons is one of America's finest blues guitarists...
