This post is all about the solution of the F. Timofey and Black-White Tree Codeforces Round #847 (Div. 3) Problem solution.

F. Timofey and Black-White Tree Codeforces Round #847 (Div. 3) Problem solution

Codeforces

Problem Statement :

Vlad discovered two positive numbers (a,b>0). He discovered that ab=a+b2, where denotes the bitwise exclusive OR and division is done without rounding.
Because it is easier to remember one number than two, Vlad remembered only ab, which we will denote as x. Assist him in locating any suitable a and b, or inform him that they do not exist.



Format of Input :

Timofey visited a well-known summer school and discovered a tree with n vertices. A tree is an undirected connected graph with no cycles.
Except for c0, every vertex in this tree is white. The vertex c0 is black in colour.
Timofey wishes to make all of the vertices of this tree black. He uses n1 operations to accomplish this. During the i-th operation, he selects the currently white vertex ci and paints it black.
Let us define tree positivity as the shortest distance between all pairs of different black vertices in it. The number of edges on the path from v to u is the distance between the vertices v and u.
Timofey wants to know the current state of affairs after each operation.

Format of the Output :

For every test case, print three strings a, b, and c separated by spaces on a single line — capybara names, such that writing them without spaces results in a line s. ab and cb, or ba and bc, must be satisfied.

If you have several options for restoring the names, print any of them. If the names are unable to be recovered, print ":(" (without quotes)


Also Check this out:-

A. Polycarp and the Day of Pi Codeforces Round #847 (Div. 3) Problem solution, Click Here
B. Taisia and Dice Codeforces Round #847 (Div. 3) Problem solution, Click Here
C. Premutation Codeforces Round #847 (Div. 3) Problem solution, Click Here
D. Matryoshkas Codeforces Round #847 (Div. 3) Problem solution, Click Here
E. Vlad and a Pair of Numbers Codeforces Round #847 (Div. 3) Problem solution, Click Here
F. Timofey and Black-White Tree Codeforces Round #847 (Div. 3) Problem solution, Click Here
Solution of the Problem: Click Here