BRTREE - Bread Tree

Breadtree is a kind of tree that produces bread. At its first year, a breadtree is only a node with a bread of weight 0 on this node which is also called zeronode. Every year after that, the weight of bread on each node of the tree will increase by 1, and another branch with a zeronode will grow at the end of each node. However, there is a limit of branches on each node. That is, when the number of branches of a node reaches the limit, there won't be any more branches, but the weight of its bread will still increase. What's more, a breadtree remains unchanged when the total weight of bread is larger than 1234567890.


There are two integers N and K on each line. N is a positive integer fit in signed 32-bit integer. K is a non-negative integer fit in signed 32-bit integer. An N equals to 0 signals the end of input, which should not be processed.


Output the total weight of bread on a breadtree with branches limit K in the N-th year in a line for each case.


10000 0
101 1
10 2
1221 128
0 0


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noedelorme: 2021-07-20 02:11:51

I have really fast solution which seems to work on every test I can imagine. But I still have a WA. Is there any way to access the input file (or maybe only the test case that doesn't work)?

Last edit: 2021-07-20 19:49:57
noedelorme: 2021-07-19 22:52:36

@legsleg True, my bad :-)

legsleg: 2021-07-19 10:07:48

The worst-case input regarding running-time is actually (most probably) something else.

Last edit: 2021-07-19 10:11:07
jacomo: 2021-07-17 13:10:25

@noedelorme: It's done in under 0.1s

Last edit: 2021-07-17 13:10:42
noedelorme: 2021-07-17 08:39:22

You can try with the worst case, which is the following (because 2147483647 is the maximal positive signed 32-bit integer) :
2147483647 2147483647
0 0

jacomo: 2021-07-13 09:16:24

Getting always a TLE , but don't know why.
Is it possible to get an example for the testcase inputs?

Added by:Race with time
Time limit:1s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ERL JS-RHINO NODEJS PERL6 VB.NET
Resource:ZOJ Monthly, January 2009 - A